PostgreSQL Source Code  git master
dblink.c File Reference
#include "postgres.h"
#include <limits.h>
#include "access/htup_details.h"
#include "access/relation.h"
#include "access/reloptions.h"
#include "access/table.h"
#include "catalog/namespace.h"
#include "catalog/pg_foreign_data_wrapper.h"
#include "catalog/pg_foreign_server.h"
#include "catalog/pg_type.h"
#include "catalog/pg_user_mapping.h"
#include "executor/spi.h"
#include "foreign/foreign.h"
#include "funcapi.h"
#include "lib/stringinfo.h"
#include "libpq-fe.h"
#include "libpq/libpq-be-fe-helpers.h"
#include "mb/pg_wchar.h"
#include "miscadmin.h"
#include "parser/scansup.h"
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/fmgroids.h"
#include "utils/guc.h"
#include "utils/lsyscache.h"
#include "utils/memutils.h"
#include "utils/rel.h"
#include "utils/varlena.h"
Include dependency graph for dblink.c:

Go to the source code of this file.

Data Structures

struct  remoteConn
 
struct  storeInfo
 
struct  remoteConnHashEnt
 

Macros

#define NUMCONN   16
 
#define DBLINK_NOTIFY_COLS   3
 

Typedefs

typedef struct remoteConn remoteConn
 
typedef struct storeInfo storeInfo
 
typedef struct remoteConnHashEnt remoteConnHashEnt
 

Functions

static Datum dblink_record_internal (FunctionCallInfo fcinfo, bool is_async)
 
static void prepTuplestoreResult (FunctionCallInfo fcinfo)
 
static void materializeResult (FunctionCallInfo fcinfo, PGconn *conn, PGresult *res)
 
static void materializeQueryResult (FunctionCallInfo fcinfo, PGconn *conn, const char *conname, const char *sql, bool fail)
 
static PGresultstoreQueryResult (volatile storeInfo *sinfo, PGconn *conn, const char *sql)
 
static void storeRow (volatile storeInfo *sinfo, PGresult *res, bool first)
 
static remoteConngetConnectionByName (const char *name)
 
static HTABcreateConnHash (void)
 
static void createNewConnection (const char *name, remoteConn *rconn)
 
static void deleteConnection (const char *name)
 
static char ** get_pkey_attnames (Relation rel, int16 *indnkeyatts)
 
static char ** get_text_array_contents (ArrayType *array, int *numitems)
 
static char * get_sql_insert (Relation rel, int *pkattnums, int pknumatts, char **src_pkattvals, char **tgt_pkattvals)
 
static char * get_sql_delete (Relation rel, int *pkattnums, int pknumatts, char **tgt_pkattvals)
 
static char * get_sql_update (Relation rel, int *pkattnums, int pknumatts, char **src_pkattvals, char **tgt_pkattvals)
 
static char * quote_ident_cstr (char *rawstr)
 
static int get_attnum_pk_pos (int *pkattnums, int pknumatts, int key)
 
static HeapTuple get_tuple_of_interest (Relation rel, int *pkattnums, int pknumatts, char **src_pkattvals)
 
static Relation get_rel_from_relname (text *relname_text, LOCKMODE lockmode, AclMode aclmode)
 
static char * generate_relation_name (Relation rel)
 
static void dblink_connstr_check (const char *connstr)
 
static void dblink_security_check (PGconn *conn, remoteConn *rconn)
 
static void dblink_res_error (PGconn *conn, const char *conname, PGresult *res, bool fail, const char *fmt,...) pg_attribute_printf(5
 
static void static char * get_connect_string (const char *servername)
 
static char * escape_param_str (const char *str)
 
static void validate_pkattnums (Relation rel, int2vector *pkattnums_arg, int32 pknumatts_arg, int **pkattnums, int *pknumatts)
 
static bool is_valid_dblink_option (const PQconninfoOption *options, const char *option, Oid context)
 
static int applyRemoteGucs (PGconn *conn)
 
static void restoreLocalGucs (int nestlevel)
 
static char * xpstrdup (const char *in)
 
static void pg_attribute_noreturn () dblink_res_internalerror(PGconn *conn
 
 PQclear (res)
 
 elog (ERROR, "%s: %s", p2, msg)
 
static void dblink_get_conn (char *conname_or_str, PGconn *volatile *conn_p, char **conname_p, volatile bool *freeconn_p)
 
static PGconndblink_get_named_conn (const char *conname)
 
static void dblink_init (void)
 
 PG_FUNCTION_INFO_V1 (dblink_connect)
 
Datum dblink_connect (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_disconnect)
 
Datum dblink_disconnect (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_open)
 
Datum dblink_open (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_close)
 
Datum dblink_close (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_fetch)
 
Datum dblink_fetch (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_record)
 
Datum dblink_record (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_send_query)
 
Datum dblink_send_query (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_get_result)
 
Datum dblink_get_result (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_get_connections)
 
Datum dblink_get_connections (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_is_busy)
 
Datum dblink_is_busy (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_cancel_query)
 
Datum dblink_cancel_query (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_error_message)
 
Datum dblink_error_message (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_exec)
 
Datum dblink_exec (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_get_pkey)
 
Datum dblink_get_pkey (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_build_sql_insert)
 
Datum dblink_build_sql_insert (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_build_sql_delete)
 
Datum dblink_build_sql_delete (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_build_sql_update)
 
Datum dblink_build_sql_update (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_current_query)
 
Datum dblink_current_query (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_get_notify)
 
Datum dblink_get_notify (PG_FUNCTION_ARGS)
 
 PG_FUNCTION_INFO_V1 (dblink_fdw_validator)
 
Datum dblink_fdw_validator (PG_FUNCTION_ARGS)
 

Variables

 PG_MODULE_MAGIC
 
static remoteConnpconn = NULL
 
static HTABremoteConnHash = NULL
 
static void PGresultres
 
static void PGresult const char * p2
 

Macro Definition Documentation

◆ DBLINK_NOTIFY_COLS

#define DBLINK_NOTIFY_COLS   3

Definition at line 1865 of file dblink.c.

◆ NUMCONN

#define NUMCONN   16

Definition at line 145 of file dblink.c.

Typedef Documentation

◆ remoteConn

typedef struct remoteConn remoteConn

◆ remoteConnHashEnt

◆ storeInfo

typedef struct storeInfo storeInfo

Function Documentation

◆ applyRemoteGucs()

static int applyRemoteGucs ( PGconn conn)
static

Definition at line 2983 of file dblink.c.

2984 {
2985  static const char *const GUCsAffectingIO[] = {
2986  "DateStyle",
2987  "IntervalStyle"
2988  };
2989 
2990  int nestlevel = -1;
2991  int i;
2992 
2993  for (i = 0; i < lengthof(GUCsAffectingIO); i++)
2994  {
2995  const char *gucName = GUCsAffectingIO[i];
2996  const char *remoteVal = PQparameterStatus(conn, gucName);
2997  const char *localVal;
2998 
2999  /*
3000  * If the remote server is pre-8.4, it won't have IntervalStyle, but
3001  * that's okay because its output format won't be ambiguous. So just
3002  * skip the GUC if we don't get a value for it. (We might eventually
3003  * need more complicated logic with remote-version checks here.)
3004  */
3005  if (remoteVal == NULL)
3006  continue;
3007 
3008  /*
3009  * Avoid GUC-setting overhead if the remote and local GUCs already
3010  * have the same value.
3011  */
3012  localVal = GetConfigOption(gucName, false, false);
3013  Assert(localVal != NULL);
3014 
3015  if (strcmp(remoteVal, localVal) == 0)
3016  continue;
3017 
3018  /* Create new GUC nest level if we didn't already */
3019  if (nestlevel < 0)
3020  nestlevel = NewGUCNestLevel();
3021 
3022  /* Apply the option (this will throw error on failure) */
3023  (void) set_config_option(gucName, remoteVal,
3025  GUC_ACTION_SAVE, true, 0, false);
3026  }
3027 
3028  return nestlevel;
3029 }
#define lengthof(array)
Definition: c.h:772
const char * PQparameterStatus(const PGconn *conn, const char *paramName)
Definition: fe-connect.c:6708
int NewGUCNestLevel(void)
Definition: guc.c:2200
const char * GetConfigOption(const char *name, bool missing_ok, bool restrict_privileged)
Definition: guc.c:4199
int set_config_option(const char *name, const char *value, GucContext context, GucSource source, GucAction action, bool changeVal, int elevel, bool is_reload)
Definition: guc.c:3283
@ GUC_ACTION_SAVE
Definition: guc.h:199
@ PGC_S_SESSION
Definition: guc.h:122
@ PGC_USERSET
Definition: guc.h:75
int i
Definition: isn.c:73
Assert(fmt[strlen(fmt) - 1] !='\n')
PGconn * conn
Definition: streamutil.c:54

References Assert(), conn, GetConfigOption(), GUC_ACTION_SAVE, i, lengthof, NewGUCNestLevel(), PGC_S_SESSION, PGC_USERSET, PQparameterStatus(), and set_config_option().

Referenced by materializeResult(), and storeQueryResult().

◆ createConnHash()

static HTAB * createConnHash ( void  )
static

Definition at line 2526 of file dblink.c.

2527 {
2528  HASHCTL ctl;
2529 
2530  ctl.keysize = NAMEDATALEN;
2531  ctl.entrysize = sizeof(remoteConnHashEnt);
2532 
2533  return hash_create("Remote Con hash", NUMCONN, &ctl,
2535 }
HTAB * hash_create(const char *tabname, long nelem, const HASHCTL *info, int flags)
Definition: dynahash.c:350
#define HASH_STRINGS
Definition: hsearch.h:96
#define HASH_ELEM
Definition: hsearch.h:95
#define NAMEDATALEN
Size keysize
Definition: hsearch.h:75
Size entrysize
Definition: hsearch.h:76

References HASHCTL::entrysize, hash_create(), HASH_ELEM, HASH_STRINGS, HASHCTL::keysize, NAMEDATALEN, and NUMCONN.

Referenced by createNewConnection(), deleteConnection(), and getConnectionByName().

◆ createNewConnection()

static void createNewConnection ( const char *  name,
remoteConn rconn 
)
static

Definition at line 2538 of file dblink.c.

2539 {
2540  remoteConnHashEnt *hentry;
2541  bool found;
2542  char *key;
2543 
2544  if (!remoteConnHash)
2546 
2547  key = pstrdup(name);
2548  truncate_identifier(key, strlen(key), true);
2550  HASH_ENTER, &found);
2551 
2552  if (found)
2553  {
2554  libpqsrv_disconnect(rconn->conn);
2555  pfree(rconn);
2556 
2557  ereport(ERROR,
2559  errmsg("duplicate connection name")));
2560  }
2561 
2562  hentry->rconn = rconn;
2563  strlcpy(hentry->name, name, sizeof(hentry->name));
2564 }
void * hash_search(HTAB *hashp, const void *keyPtr, HASHACTION action, bool *foundPtr)
Definition: dynahash.c:953
int errcode(int sqlerrcode)
Definition: elog.c:858
int errmsg(const char *fmt,...)
Definition: elog.c:1069
#define ERROR
Definition: elog.h:39
#define ereport(elevel,...)
Definition: elog.h:149
const char * name
Definition: encode.c:571
@ HASH_ENTER
Definition: hsearch.h:114
static void libpqsrv_disconnect(PGconn *conn)
char * pstrdup(const char *in)
Definition: mcxt.c:1624
void pfree(void *pointer)
Definition: mcxt.c:1436
size_t strlcpy(char *dst, const char *src, size_t siz)
Definition: strlcpy.c:45
void truncate_identifier(char *ident, int len, bool warn)
Definition: scansup.c:93
#define ERRCODE_DUPLICATE_OBJECT
Definition: streamutil.c:32
char name[NAMEDATALEN]
Definition: dblink.c:140
remoteConn * rconn
Definition: dblink.c:141
PGconn * conn
Definition: dblink.c:68

References remoteConn::conn, createConnHash(), ereport, errcode(), ERRCODE_DUPLICATE_OBJECT, errmsg(), ERROR, HASH_ENTER, hash_search(), sort-test::key, libpqsrv_disconnect(), remoteConnHashEnt::name, name, pfree(), pstrdup(), remoteConnHashEnt::rconn, remoteConnHash, strlcpy(), and truncate_identifier().

Referenced by dblink_connect().

◆ dblink_build_sql_delete()

Datum dblink_build_sql_delete ( PG_FUNCTION_ARGS  )

Definition at line 1696 of file dblink.c.

1697 {
1698  text *relname_text = PG_GETARG_TEXT_PP(0);
1699  int2vector *pkattnums_arg = (int2vector *) PG_GETARG_POINTER(1);
1700  int32 pknumatts_arg = PG_GETARG_INT32(2);
1701  ArrayType *tgt_pkattvals_arry = PG_GETARG_ARRAYTYPE_P(3);
1702  Relation rel;
1703  int *pkattnums;
1704  int pknumatts;
1705  char **tgt_pkattvals;
1706  int tgt_nitems;
1707  char *sql;
1708 
1709  /*
1710  * Open target relation.
1711  */
1712  rel = get_rel_from_relname(relname_text, AccessShareLock, ACL_SELECT);
1713 
1714  /*
1715  * Process pkattnums argument.
1716  */
1717  validate_pkattnums(rel, pkattnums_arg, pknumatts_arg,
1718  &pkattnums, &pknumatts);
1719 
1720  /*
1721  * Target array is made up of key values that will be used to build the
1722  * SQL string for use on the remote system.
1723  */
1724  tgt_pkattvals = get_text_array_contents(tgt_pkattvals_arry, &tgt_nitems);
1725 
1726  /*
1727  * There should be one target array key value for each key attnum
1728  */
1729  if (tgt_nitems != pknumatts)
1730  ereport(ERROR,
1731  (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
1732  errmsg("target key array length must match number of key attributes")));
1733 
1734  /*
1735  * Prep work is finally done. Go get the SQL string.
1736  */
1737  sql = get_sql_delete(rel, pkattnums, pknumatts, tgt_pkattvals);
1738 
1739  /*
1740  * Now we can close the relation.
1741  */
1743 
1744  /*
1745  * And send it
1746  */
1748 }
#define PG_GETARG_ARRAYTYPE_P(n)
Definition: array.h:256
signed int int32
Definition: c.h:478
#define PG_GETARG_TEXT_PP(n)
Definition: fmgr.h:309
#define PG_GETARG_POINTER(n)
Definition: fmgr.h:276
#define PG_RETURN_TEXT_P(x)
Definition: fmgr.h:372
#define PG_GETARG_INT32(n)
Definition: fmgr.h:269
#define AccessShareLock
Definition: lockdefs.h:36
#define ACL_SELECT
Definition: parsenodes.h:84
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: relation.c:206
Definition: c.h:699
Definition: c.h:671
text * cstring_to_text(const char *s)
Definition: varlena.c:182

References AccessShareLock, ACL_SELECT, cstring_to_text(), ereport, errcode(), errmsg(), ERROR, get_rel_from_relname(), get_sql_delete(), get_text_array_contents(), PG_GETARG_ARRAYTYPE_P, PG_GETARG_INT32, PG_GETARG_POINTER, PG_GETARG_TEXT_PP, PG_RETURN_TEXT_P, relation_close(), and validate_pkattnums().

◆ dblink_build_sql_insert()

Datum dblink_build_sql_insert ( PG_FUNCTION_ARGS  )

Definition at line 1607 of file dblink.c.

1608 {
1609  text *relname_text = PG_GETARG_TEXT_PP(0);
1610  int2vector *pkattnums_arg = (int2vector *) PG_GETARG_POINTER(1);
1611  int32 pknumatts_arg = PG_GETARG_INT32(2);
1612  ArrayType *src_pkattvals_arry = PG_GETARG_ARRAYTYPE_P(3);
1613  ArrayType *tgt_pkattvals_arry = PG_GETARG_ARRAYTYPE_P(4);
1614  Relation rel;
1615  int *pkattnums;
1616  int pknumatts;
1617  char **src_pkattvals;
1618  char **tgt_pkattvals;
1619  int src_nitems;
1620  int tgt_nitems;
1621  char *sql;
1622 
1623  /*
1624  * Open target relation.
1625  */
1626  rel = get_rel_from_relname(relname_text, AccessShareLock, ACL_SELECT);
1627 
1628  /*
1629  * Process pkattnums argument.
1630  */
1631  validate_pkattnums(rel, pkattnums_arg, pknumatts_arg,
1632  &pkattnums, &pknumatts);
1633 
1634  /*
1635  * Source array is made up of key values that will be used to locate the
1636  * tuple of interest from the local system.
1637  */
1638  src_pkattvals = get_text_array_contents(src_pkattvals_arry, &src_nitems);
1639 
1640  /*
1641  * There should be one source array key value for each key attnum
1642  */
1643  if (src_nitems != pknumatts)
1644  ereport(ERROR,
1645  (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
1646  errmsg("source key array length must match number of key attributes")));
1647 
1648  /*
1649  * Target array is made up of key values that will be used to build the
1650  * SQL string for use on the remote system.
1651  */
1652  tgt_pkattvals = get_text_array_contents(tgt_pkattvals_arry, &tgt_nitems);
1653 
1654  /*
1655  * There should be one target array key value for each key attnum
1656  */
1657  if (tgt_nitems != pknumatts)
1658  ereport(ERROR,
1659  (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
1660  errmsg("target key array length must match number of key attributes")));
1661 
1662  /*
1663  * Prep work is finally done. Go get the SQL string.
1664  */
1665  sql = get_sql_insert(rel, pkattnums, pknumatts, src_pkattvals, tgt_pkattvals);
1666 
1667  /*
1668  * Now we can close the relation.
1669  */
1671 
1672  /*
1673  * And send it
1674  */
1676 }

References AccessShareLock, ACL_SELECT, cstring_to_text(), ereport, errcode(), errmsg(), ERROR, get_rel_from_relname(), get_sql_insert(), get_text_array_contents(), PG_GETARG_ARRAYTYPE_P, PG_GETARG_INT32, PG_GETARG_POINTER, PG_GETARG_TEXT_PP, PG_RETURN_TEXT_P, relation_close(), and validate_pkattnums().

◆ dblink_build_sql_update()

Datum dblink_build_sql_update ( PG_FUNCTION_ARGS  )

Definition at line 1772 of file dblink.c.

1773 {
1774  text *relname_text = PG_GETARG_TEXT_PP(0);
1775  int2vector *pkattnums_arg = (int2vector *) PG_GETARG_POINTER(1);
1776  int32 pknumatts_arg = PG_GETARG_INT32(2);
1777  ArrayType *src_pkattvals_arry = PG_GETARG_ARRAYTYPE_P(3);
1778  ArrayType *tgt_pkattvals_arry = PG_GETARG_ARRAYTYPE_P(4);
1779  Relation rel;
1780  int *pkattnums;
1781  int pknumatts;
1782  char **src_pkattvals;
1783  char **tgt_pkattvals;
1784  int src_nitems;
1785  int tgt_nitems;
1786  char *sql;
1787 
1788  /*
1789  * Open target relation.
1790  */
1791  rel = get_rel_from_relname(relname_text, AccessShareLock, ACL_SELECT);
1792 
1793  /*
1794  * Process pkattnums argument.
1795  */
1796  validate_pkattnums(rel, pkattnums_arg, pknumatts_arg,
1797  &pkattnums, &pknumatts);
1798 
1799  /*
1800  * Source array is made up of key values that will be used to locate the
1801  * tuple of interest from the local system.
1802  */
1803  src_pkattvals = get_text_array_contents(src_pkattvals_arry, &src_nitems);
1804 
1805  /*
1806  * There should be one source array key value for each key attnum
1807  */
1808  if (src_nitems != pknumatts)
1809  ereport(ERROR,
1810  (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
1811  errmsg("source key array length must match number of key attributes")));
1812 
1813  /*
1814  * Target array is made up of key values that will be used to build the
1815  * SQL string for use on the remote system.
1816  */
1817  tgt_pkattvals = get_text_array_contents(tgt_pkattvals_arry, &tgt_nitems);
1818 
1819  /*
1820  * There should be one target array key value for each key attnum
1821  */
1822  if (tgt_nitems != pknumatts)
1823  ereport(ERROR,
1824  (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
1825  errmsg("target key array length must match number of key attributes")));
1826 
1827  /*
1828  * Prep work is finally done. Go get the SQL string.
1829  */
1830  sql = get_sql_update(rel, pkattnums, pknumatts, src_pkattvals, tgt_pkattvals);
1831 
1832  /*
1833  * Now we can close the relation.
1834  */
1836 
1837  /*
1838  * And send it
1839  */
1841 }

References AccessShareLock, ACL_SELECT, cstring_to_text(), ereport, errcode(), errmsg(), ERROR, get_rel_from_relname(), get_sql_update(), get_text_array_contents(), PG_GETARG_ARRAYTYPE_P, PG_GETARG_INT32, PG_GETARG_POINTER, PG_GETARG_TEXT_PP, PG_RETURN_TEXT_P, relation_close(), and validate_pkattnums().

◆ dblink_cancel_query()

Datum dblink_cancel_query ( PG_FUNCTION_ARGS  )

Definition at line 1327 of file dblink.c.

1328 {
1329  int res;
1330  PGconn *conn;
1331  PGcancel *cancel;
1332  char errbuf[256];
1333 
1334  dblink_init();
1336  cancel = PQgetCancel(conn);
1337 
1338  res = PQcancel(cancel, errbuf, 256);
1339  PQfreeCancel(cancel);
1340 
1341  if (res == 1)
1343  else
1345 }
PGcancel * PQgetCancel(PGconn *conn)
Definition: fe-connect.c:4235
int PQcancel(PGcancel *cancel, char *errbuf, int errbufsize)
Definition: fe-connect.c:4349
void PQfreeCancel(PGcancel *cancel)
Definition: fe-connect.c:4303
char * text_to_cstring(const text *t)
Definition: varlena.c:215

References conn, cstring_to_text(), dblink_get_named_conn(), dblink_init(), PG_GETARG_TEXT_PP, PG_RETURN_TEXT_P, PQcancel(), PQfreeCancel(), PQgetCancel(), res, and text_to_cstring().

◆ dblink_close()

Datum dblink_close ( PG_FUNCTION_ARGS  )

Definition at line 467 of file dblink.c.

468 {
469  PGconn *conn;
470  PGresult *res = NULL;
471  char *curname = NULL;
472  char *conname = NULL;
474  remoteConn *rconn = NULL;
475  bool fail = true; /* default to backward compatible behavior */
476 
477  dblink_init();
479 
480  if (PG_NARGS() == 1)
481  {
482  /* text */
483  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
484  rconn = pconn;
485  }
486  else if (PG_NARGS() == 2)
487  {
488  /* might be text,text or text,bool */
489  if (get_fn_expr_argtype(fcinfo->flinfo, 1) == BOOLOID)
490  {
491  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
492  fail = PG_GETARG_BOOL(1);
493  rconn = pconn;
494  }
495  else
496  {
497  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
498  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
499  rconn = getConnectionByName(conname);
500  }
501  }
502  if (PG_NARGS() == 3)
503  {
504  /* text,text,bool */
505  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
506  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
507  fail = PG_GETARG_BOOL(2);
508  rconn = getConnectionByName(conname);
509  }
510 
511  if (!rconn || !rconn->conn)
512  dblink_conn_not_avail(conname);
513 
514  conn = rconn->conn;
515 
516  appendStringInfo(&buf, "CLOSE %s", curname);
517 
518  /* close the cursor */
519  res = PQexec(conn, buf.data);
521  {
522  dblink_res_error(conn, conname, res, fail,
523  "while closing cursor \"%s\"", curname);
525  }
526 
527  PQclear(res);
528 
529  /* if we started a transaction, decrement cursor count */
530  if (rconn->newXactForCursor)
531  {
532  (rconn->openCursorCount)--;
533 
534  /* if count is zero, commit the transaction */
535  if (rconn->openCursorCount == 0)
536  {
537  rconn->newXactForCursor = false;
538 
539  res = PQexec(conn, "COMMIT");
541  dblink_res_internalerror(conn, res, "commit error");
542  PQclear(res);
543  }
544  }
545 
547 }
ExecStatusType PQresultStatus(const PGresult *res)
Definition: fe-exec.c:3240
PGresult * PQexec(PGconn *conn, const char *query)
Definition: fe-exec.c:2225
Oid get_fn_expr_argtype(FmgrInfo *flinfo, int argnum)
Definition: fmgr.c:1897
#define PG_NARGS()
Definition: fmgr.h:203
#define PG_GETARG_BOOL(n)
Definition: fmgr.h:274
@ PGRES_COMMAND_OK
Definition: libpq-fe.h:97
static char * buf
Definition: pg_test_fsync.c:67
void appendStringInfo(StringInfo str, const char *fmt,...)
Definition: stringinfo.c:91
void initStringInfo(StringInfo str)
Definition: stringinfo.c:59
bool newXactForCursor
Definition: dblink.c:70
int openCursorCount
Definition: dblink.c:69

References appendStringInfo(), buf, remoteConn::conn, conn, cstring_to_text(), dblink_init(), dblink_res_error(), get_fn_expr_argtype(), getConnectionByName(), initStringInfo(), remoteConn::newXactForCursor, remoteConn::openCursorCount, pconn, PG_GETARG_BOOL, PG_GETARG_TEXT_PP, PG_NARGS, PG_RETURN_TEXT_P, PGRES_COMMAND_OK, PQclear(), PQexec(), PQresultStatus(), res, and text_to_cstring().

◆ dblink_connect()

Datum dblink_connect ( PG_FUNCTION_ARGS  )

Definition at line 257 of file dblink.c.

258 {
259  char *conname_or_str = NULL;
260  char *connstr = NULL;
261  char *connname = NULL;
262  char *msg;
263  PGconn *conn = NULL;
264  remoteConn *rconn = NULL;
265 
266  dblink_init();
267 
268  if (PG_NARGS() == 2)
269  {
270  conname_or_str = text_to_cstring(PG_GETARG_TEXT_PP(1));
271  connname = text_to_cstring(PG_GETARG_TEXT_PP(0));
272  }
273  else if (PG_NARGS() == 1)
274  conname_or_str = text_to_cstring(PG_GETARG_TEXT_PP(0));
275 
276  if (connname)
277  {
279  sizeof(remoteConn));
280  rconn->conn = NULL;
281  rconn->openCursorCount = 0;
282  rconn->newXactForCursor = false;
283  }
284 
285  /* first check for valid foreign data server */
286  connstr = get_connect_string(conname_or_str);
287  if (connstr == NULL)
288  connstr = conname_or_str;
289 
290  /* check password in connection string if not superuser */
292 
293  /* OK to make connection */
295 
296  if (PQstatus(conn) == CONNECTION_BAD)
297  {
298  msg = pchomp(PQerrorMessage(conn));
300  if (rconn)
301  pfree(rconn);
302 
303  ereport(ERROR,
304  (errcode(ERRCODE_SQLCLIENT_UNABLE_TO_ESTABLISH_SQLCONNECTION),
305  errmsg("could not establish connection"),
306  errdetail_internal("%s", msg)));
307  }
308 
309  /* check password actually used if not superuser */
310  dblink_security_check(conn, rconn);
311 
312  /* attempt to set client encoding to match server encoding, if needed */
315 
316  if (connname)
317  {
318  rconn->conn = conn;
319  createNewConnection(connname, rconn);
320  }
321  else
322  {
323  if (pconn->conn)
325  pconn->conn = conn;
326  }
327 
329 }
int errdetail_internal(const char *fmt,...)
Definition: elog.c:1229
char * PQerrorMessage(const PGconn *conn)
Definition: fe-connect.c:6743
ConnStatusType PQstatus(const PGconn *conn)
Definition: fe-connect.c:6690
int PQclientEncoding(const PGconn *conn)
Definition: fe-connect.c:6820
int PQsetClientEncoding(PGconn *conn, const char *encoding)
Definition: fe-connect.c:6828
static PGconn * libpqsrv_connect(const char *conninfo, uint32 wait_event_info)
@ CONNECTION_BAD
Definition: libpq-fe.h:61
int GetDatabaseEncoding(void)
Definition: mbutils.c:1268
const char * GetDatabaseEncodingName(void)
Definition: mbutils.c:1274
char * pchomp(const char *in)
Definition: mcxt.c:1652
MemoryContext TopMemoryContext
Definition: mcxt.c:141
void * MemoryContextAlloc(MemoryContext context, Size size)
Definition: mcxt.c:1005
static char * connstr
Definition: pg_dumpall.c:88
#define PG_WAIT_EXTENSION
Definition: wait_event.h:23

References remoteConn::conn, conn, CONNECTION_BAD, connstr, createNewConnection(), cstring_to_text(), dblink_connstr_check(), dblink_init(), dblink_security_check(), ereport, errcode(), errdetail_internal(), errmsg(), ERROR, get_connect_string(), GetDatabaseEncoding(), GetDatabaseEncodingName(), libpqsrv_connect(), libpqsrv_disconnect(), MemoryContextAlloc(), remoteConn::newXactForCursor, remoteConn::openCursorCount, pchomp(), pconn, pfree(), PG_GETARG_TEXT_PP, PG_NARGS, PG_RETURN_TEXT_P, PG_WAIT_EXTENSION, PQclientEncoding(), PQerrorMessage(), PQsetClientEncoding(), PQstatus(), text_to_cstring(), and TopMemoryContext.

◆ dblink_connstr_check()

static void dblink_connstr_check ( const char *  connstr)
static

Definition at line 2614 of file dblink.c.

2615 {
2616  if (!superuser())
2617  {
2620  bool connstr_gives_password = false;
2621 
2622  options = PQconninfoParse(connstr, NULL);
2623  if (options)
2624  {
2625  for (option = options; option->keyword != NULL; option++)
2626  {
2627  if (strcmp(option->keyword, "password") == 0)
2628  {
2629  if (option->val != NULL && option->val[0] != '\0')
2630  {
2631  connstr_gives_password = true;
2632  break;
2633  }
2634  }
2635  }
2637  }
2638 
2639  if (!connstr_gives_password)
2640  ereport(ERROR,
2641  (errcode(ERRCODE_S_R_E_PROHIBITED_SQL_STATEMENT_ATTEMPTED),
2642  errmsg("password is required"),
2643  errdetail("Non-superusers must provide a password in the connection string.")));
2644  }
2645 }
int errdetail(const char *fmt,...)
Definition: elog.c:1202
PQconninfoOption * PQconninfoParse(const char *conninfo, char **errmsg)
Definition: fe-connect.c:5357
void PQconninfoFree(PQconninfoOption *connOptions)
Definition: fe-connect.c:6576
static char ** options
int val
Definition: getopt_long.h:21
bool superuser(void)
Definition: superuser.c:46

References connstr, ereport, errcode(), errdetail(), errmsg(), ERROR, options, PQconninfoFree(), PQconninfoParse(), superuser(), and option::val.

Referenced by dblink_connect(), and dblink_get_conn().

◆ dblink_current_query()

Datum dblink_current_query ( PG_FUNCTION_ARGS  )

Definition at line 1851 of file dblink.c.

1852 {
1853  /* This is now just an alias for the built-in function current_query() */
1854  PG_RETURN_DATUM(current_query(fcinfo));
1855 }
Datum current_query(PG_FUNCTION_ARGS)
Definition: misc.c:212
#define PG_RETURN_DATUM(x)
Definition: fmgr.h:353

References current_query(), and PG_RETURN_DATUM.

◆ dblink_disconnect()

Datum dblink_disconnect ( PG_FUNCTION_ARGS  )

Definition at line 336 of file dblink.c.

337 {
338  char *conname = NULL;
339  remoteConn *rconn = NULL;
340  PGconn *conn = NULL;
341 
342  dblink_init();
343 
344  if (PG_NARGS() == 1)
345  {
346  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
347  rconn = getConnectionByName(conname);
348  if (rconn)
349  conn = rconn->conn;
350  }
351  else
352  conn = pconn->conn;
353 
354  if (!conn)
355  dblink_conn_not_avail(conname);
356 
358  if (rconn)
359  {
360  deleteConnection(conname);
361  pfree(rconn);
362  }
363  else
364  pconn->conn = NULL;
365 
367 }

References remoteConn::conn, conn, cstring_to_text(), dblink_init(), deleteConnection(), getConnectionByName(), libpqsrv_disconnect(), pconn, pfree(), PG_GETARG_TEXT_PP, PG_NARGS, PG_RETURN_TEXT_P, and text_to_cstring().

◆ dblink_error_message()

Datum dblink_error_message ( PG_FUNCTION_ARGS  )

Definition at line 1360 of file dblink.c.

1361 {
1362  char *msg;
1363  PGconn *conn;
1364 
1365  dblink_init();
1367 
1368  msg = PQerrorMessage(conn);
1369  if (msg == NULL || msg[0] == '\0')
1371  else
1373 }

References conn, cstring_to_text(), dblink_get_named_conn(), dblink_init(), pchomp(), PG_GETARG_TEXT_PP, PG_RETURN_TEXT_P, PQerrorMessage(), and text_to_cstring().

◆ dblink_exec()

Datum dblink_exec ( PG_FUNCTION_ARGS  )

Definition at line 1380 of file dblink.c.

1381 {
1382  text *volatile sql_cmd_status = NULL;
1383  PGconn *volatile conn = NULL;
1384  volatile bool freeconn = false;
1385 
1386  dblink_init();
1387 
1388  PG_TRY();
1389  {
1390  PGresult *res = NULL;
1391  char *sql = NULL;
1392  char *conname = NULL;
1393  bool fail = true; /* default to backward compatible behavior */
1394 
1395  if (PG_NARGS() == 3)
1396  {
1397  /* must be text,text,bool */
1398  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
1400  fail = PG_GETARG_BOOL(2);
1401  dblink_get_conn(conname, &conn, &conname, &freeconn);
1402  }
1403  else if (PG_NARGS() == 2)
1404  {
1405  /* might be text,text or text,bool */
1406  if (get_fn_expr_argtype(fcinfo->flinfo, 1) == BOOLOID)
1407  {
1409  fail = PG_GETARG_BOOL(1);
1410  conn = pconn->conn;
1411  }
1412  else
1413  {
1414  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
1416  dblink_get_conn(conname, &conn, &conname, &freeconn);
1417  }
1418  }
1419  else if (PG_NARGS() == 1)
1420  {
1421  /* must be single text argument */
1422  conn = pconn->conn;
1424  }
1425  else
1426  /* shouldn't happen */
1427  elog(ERROR, "wrong number of arguments");
1428 
1429  if (!conn)
1430  dblink_conn_not_avail(conname);
1431 
1432  res = PQexec(conn, sql);
1433  if (!res ||
1436  {
1437  dblink_res_error(conn, conname, res, fail,
1438  "while executing command");
1439 
1440  /*
1441  * and save a copy of the command status string to return as our
1442  * result tuple
1443  */
1444  sql_cmd_status = cstring_to_text("ERROR");
1445  }
1446  else if (PQresultStatus(res) == PGRES_COMMAND_OK)
1447  {
1448  /*
1449  * and save a copy of the command status string to return as our
1450  * result tuple
1451  */
1452  sql_cmd_status = cstring_to_text(PQcmdStatus(res));
1453  PQclear(res);
1454  }
1455  else
1456  {
1457  PQclear(res);
1458  ereport(ERROR,
1459  (errcode(ERRCODE_S_R_E_PROHIBITED_SQL_STATEMENT_ATTEMPTED),
1460  errmsg("statement returning results not allowed")));
1461  }
1462  }
1463  PG_FINALLY();
1464  {
1465  /* if needed, close the connection to the database */
1466  if (freeconn)
1468  }
1469  PG_END_TRY();
1470 
1471  PG_RETURN_TEXT_P(sql_cmd_status);
1472 }
#define PG_TRY(...)
Definition: elog.h:370
#define PG_END_TRY(...)
Definition: elog.h:395
#define PG_FINALLY(...)
Definition: elog.h:387
char * PQcmdStatus(PGresult *res)
Definition: fe-exec.c:3581
@ PGRES_TUPLES_OK
Definition: libpq-fe.h:100

References remoteConn::conn, conn, cstring_to_text(), dblink_get_conn(), dblink_init(), dblink_res_error(), elog(), ereport, errcode(), errmsg(), ERROR, get_fn_expr_argtype(), libpqsrv_disconnect(), pconn, PG_END_TRY, PG_FINALLY, PG_GETARG_BOOL, PG_GETARG_TEXT_PP, PG_NARGS, PG_RETURN_TEXT_P, PG_TRY, PGRES_COMMAND_OK, PGRES_TUPLES_OK, PQclear(), PQcmdStatus(), PQexec(), PQresultStatus(), res, and text_to_cstring().

◆ dblink_fdw_validator()

Datum dblink_fdw_validator ( PG_FUNCTION_ARGS  )

Definition at line 1922 of file dblink.c.

1923 {
1924  List *options_list = untransformRelOptions(PG_GETARG_DATUM(0));
1925  Oid context = PG_GETARG_OID(1);
1926  ListCell *cell;
1927 
1928  static const PQconninfoOption *options = NULL;
1929 
1930  /*
1931  * Get list of valid libpq options.
1932  *
1933  * To avoid unnecessary work, we get the list once and use it throughout
1934  * the lifetime of this backend process. We don't need to care about
1935  * memory context issues, because PQconndefaults allocates with malloc.
1936  */
1937  if (!options)
1938  {
1939  options = PQconndefaults();
1940  if (!options) /* assume reason for failure is OOM */
1941  ereport(ERROR,
1942  (errcode(ERRCODE_FDW_OUT_OF_MEMORY),
1943  errmsg("out of memory"),
1944  errdetail("Could not get libpq's default connection options.")));
1945  }
1946 
1947  /* Validate each supplied option. */
1948  foreach(cell, options_list)
1949  {
1950  DefElem *def = (DefElem *) lfirst(cell);
1951 
1952  if (!is_valid_dblink_option(options, def->defname, context))
1953  {
1954  /*
1955  * Unknown option, or invalid option for the context specified, so
1956  * complain about it. Provide a hint with a valid option that
1957  * looks similar, if there is one.
1958  */
1959  const PQconninfoOption *opt;
1960  const char *closest_match;
1961  ClosestMatchState match_state;
1962  bool has_valid_options = false;
1963 
1964  initClosestMatch(&match_state, def->defname, 4);
1965  for (opt = options; opt->keyword; opt++)
1966  {
1967  if (is_valid_dblink_option(options, opt->keyword, context))
1968  {
1969  has_valid_options = true;
1970  updateClosestMatch(&match_state, opt->keyword);
1971  }
1972  }
1973 
1974  closest_match = getClosestMatch(&match_state);
1975  ereport(ERROR,
1976  (errcode(ERRCODE_FDW_OPTION_NAME_NOT_FOUND),
1977  errmsg("invalid option \"%s\"", def->defname),
1978  has_valid_options ? closest_match ?
1979  errhint("Perhaps you meant the option \"%s\".",
1980  closest_match) : 0 :
1981  errhint("There are no valid options in this context.")));
1982  }
1983  }
1984 
1985  PG_RETURN_VOID();
1986 }
int errhint(const char *fmt,...)
Definition: elog.c:1316
PQconninfoOption * PQconndefaults(void)
Definition: fe-connect.c:1447
#define PG_RETURN_VOID()
Definition: fmgr.h:349
#define PG_GETARG_OID(n)
Definition: fmgr.h:275
#define PG_GETARG_DATUM(n)
Definition: fmgr.h:268
#define lfirst(lc)
Definition: pg_list.h:172
unsigned int Oid
Definition: postgres_ext.h:31
List * untransformRelOptions(Datum options)
Definition: reloptions.c:1333
char * defname
Definition: parsenodes.h:810
Definition: pg_list.h:54
const char * getClosestMatch(ClosestMatchState *state)
Definition: varlena.c:6444
void initClosestMatch(ClosestMatchState *state, const char *source, int max_d)
Definition: varlena.c:6389
void updateClosestMatch(ClosestMatchState *state, const char *candidate)
Definition: varlena.c:6409

References DefElem::defname, ereport, errcode(), errdetail(), errhint(), errmsg(), ERROR, getClosestMatch(), initClosestMatch(), is_valid_dblink_option(), _PQconninfoOption::keyword, lfirst, PG_GETARG_DATUM, PG_GETARG_OID, PG_RETURN_VOID, PQconndefaults(), untransformRelOptions(), and updateClosestMatch().

◆ dblink_fetch()

Datum dblink_fetch ( PG_FUNCTION_ARGS  )

Definition at line 554 of file dblink.c.

555 {
556  PGresult *res = NULL;
557  char *conname = NULL;
558  remoteConn *rconn = NULL;
559  PGconn *conn = NULL;
561  char *curname = NULL;
562  int howmany = 0;
563  bool fail = true; /* default to backward compatible */
564 
565  prepTuplestoreResult(fcinfo);
566 
567  dblink_init();
568 
569  if (PG_NARGS() == 4)
570  {
571  /* text,text,int,bool */
572  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
573  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
574  howmany = PG_GETARG_INT32(2);
575  fail = PG_GETARG_BOOL(3);
576 
577  rconn = getConnectionByName(conname);
578  if (rconn)
579  conn = rconn->conn;
580  }
581  else if (PG_NARGS() == 3)
582  {
583  /* text,text,int or text,int,bool */
584  if (get_fn_expr_argtype(fcinfo->flinfo, 2) == BOOLOID)
585  {
586  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
587  howmany = PG_GETARG_INT32(1);
588  fail = PG_GETARG_BOOL(2);
589  conn = pconn->conn;
590  }
591  else
592  {
593  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
594  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
595  howmany = PG_GETARG_INT32(2);
596 
597  rconn = getConnectionByName(conname);
598  if (rconn)
599  conn = rconn->conn;
600  }
601  }
602  else if (PG_NARGS() == 2)
603  {
604  /* text,int */
605  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
606  howmany = PG_GETARG_INT32(1);
607  conn = pconn->conn;
608  }
609 
610  if (!conn)
611  dblink_conn_not_avail(conname);
612 
614  appendStringInfo(&buf, "FETCH %d FROM %s", howmany, curname);
615 
616  /*
617  * Try to execute the query. Note that since libpq uses malloc, the
618  * PGresult will be long-lived even though we are still in a short-lived
619  * memory context.
620  */
621  res = PQexec(conn, buf.data);
622  if (!res ||
625  {
626  dblink_res_error(conn, conname, res, fail,
627  "while fetching from cursor \"%s\"", curname);
628  return (Datum) 0;
629  }
630  else if (PQresultStatus(res) == PGRES_COMMAND_OK)
631  {
632  /* cursor does not exist - closed already or bad name */
633  PQclear(res);
634  ereport(ERROR,
635  (errcode(ERRCODE_INVALID_CURSOR_NAME),
636  errmsg("cursor \"%s\" does not exist", curname)));
637  }
638 
639  materializeResult(fcinfo, conn, res);
640  return (Datum) 0;
641 }
uintptr_t Datum
Definition: postgres.h:64

References appendStringInfo(), buf, remoteConn::conn, conn, dblink_init(), dblink_res_error(), ereport, errcode(), errmsg(), ERROR, get_fn_expr_argtype(), getConnectionByName(), initStringInfo(), materializeResult(), pconn, PG_GETARG_BOOL, PG_GETARG_INT32, PG_GETARG_TEXT_PP, PG_NARGS, PGRES_COMMAND_OK, PGRES_TUPLES_OK, PQclear(), PQexec(), PQresultStatus(), prepTuplestoreResult(), res, and text_to_cstring().

◆ dblink_get_conn()

static void dblink_get_conn ( char *  conname_or_str,
PGconn *volatile *  conn_p,
char **  conname_p,
volatile bool freeconn_p 
)
static

Definition at line 180 of file dblink.c.

182 {
183  remoteConn *rconn = getConnectionByName(conname_or_str);
184  PGconn *conn;
185  char *conname;
186  bool freeconn;
187 
188  if (rconn)
189  {
190  conn = rconn->conn;
191  conname = conname_or_str;
192  freeconn = false;
193  }
194  else
195  {
196  const char *connstr;
197 
198  connstr = get_connect_string(conname_or_str);
199  if (connstr == NULL)
200  connstr = conname_or_str;
202 
203  /* OK to make connection */
205 
206  if (PQstatus(conn) == CONNECTION_BAD)
207  {
208  char *msg = pchomp(PQerrorMessage(conn));
209 
211  ereport(ERROR,
212  (errcode(ERRCODE_SQLCLIENT_UNABLE_TO_ESTABLISH_SQLCONNECTION),
213  errmsg("could not establish connection"),
214  errdetail_internal("%s", msg)));
215  }
216  dblink_security_check(conn, rconn);
219  freeconn = true;
220  conname = NULL;
221  }
222 
223  *conn_p = conn;
224  *conname_p = conname;
225  *freeconn_p = freeconn;
226 }

References remoteConn::conn, conn, CONNECTION_BAD, connstr, dblink_connstr_check(), dblink_security_check(), ereport, errcode(), errdetail_internal(), errmsg(), ERROR, get_connect_string(), getConnectionByName(), GetDatabaseEncoding(), GetDatabaseEncodingName(), libpqsrv_connect(), libpqsrv_disconnect(), pchomp(), PG_WAIT_EXTENSION, PQclientEncoding(), PQerrorMessage(), PQsetClientEncoding(), and PQstatus().

Referenced by dblink_exec(), and dblink_record_internal().

◆ dblink_get_connections()

Datum dblink_get_connections ( PG_FUNCTION_ARGS  )

Definition at line 1268 of file dblink.c.

1269 {
1271  remoteConnHashEnt *hentry;
1272  ArrayBuildState *astate = NULL;
1273 
1274  if (remoteConnHash)
1275  {
1277  while ((hentry = (remoteConnHashEnt *) hash_seq_search(&status)) != NULL)
1278  {
1279  /* stash away current value */
1280  astate = accumArrayResult(astate,
1281  CStringGetTextDatum(hentry->name),
1282  false, TEXTOID, CurrentMemoryContext);
1283  }
1284  }
1285 
1286  if (astate)
1289  else
1290  PG_RETURN_NULL();
1291 }
ArrayBuildState * accumArrayResult(ArrayBuildState *astate, Datum dvalue, bool disnull, Oid element_type, MemoryContext rcontext)
Definition: arrayfuncs.c:5321
Datum makeArrayResult(ArrayBuildState *astate, MemoryContext rcontext)
Definition: arrayfuncs.c:5385
#define CStringGetTextDatum(s)
Definition: builtins.h:94
void * hash_seq_search(HASH_SEQ_STATUS *status)
Definition: dynahash.c:1431
void hash_seq_init(HASH_SEQ_STATUS *status, HTAB *hashp)
Definition: dynahash.c:1421
#define PG_RETURN_NULL()
Definition: fmgr.h:345
MemoryContext CurrentMemoryContext
Definition: mcxt.c:135
static void static void status(const char *fmt,...) pg_attribute_printf(1
Definition: pg_regress.c:224

References accumArrayResult(), CStringGetTextDatum, CurrentMemoryContext, hash_seq_init(), hash_seq_search(), makeArrayResult(), remoteConnHashEnt::name, PG_RETURN_DATUM, PG_RETURN_NULL, remoteConnHash, and status().

◆ dblink_get_named_conn()

static PGconn* dblink_get_named_conn ( const char *  conname)
static

Definition at line 229 of file dblink.c.

230 {
231  remoteConn *rconn = getConnectionByName(conname);
232 
233  if (rconn)
234  return rconn->conn;
235 
236  dblink_conn_not_avail(conname);
237  return NULL; /* keep compiler quiet */
238 }

References remoteConn::conn, and getConnectionByName().

Referenced by dblink_cancel_query(), dblink_error_message(), dblink_get_notify(), dblink_is_busy(), dblink_record_internal(), and dblink_send_query().

◆ dblink_get_notify()

Datum dblink_get_notify ( PG_FUNCTION_ARGS  )

Definition at line 1869 of file dblink.c.

1870 {
1871  PGconn *conn;
1872  PGnotify *notify;
1873  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
1874 
1875  dblink_init();
1876  if (PG_NARGS() == 1)
1878  else
1879  conn = pconn->conn;
1880 
1881  InitMaterializedSRF(fcinfo, 0);
1882 
1884  while ((notify = PQnotifies(conn)) != NULL)
1885  {
1887  bool nulls[DBLINK_NOTIFY_COLS];
1888 
1889  memset(values, 0, sizeof(values));
1890  memset(nulls, 0, sizeof(nulls));
1891 
1892  if (notify->relname != NULL)
1893  values[0] = CStringGetTextDatum(notify->relname);
1894  else
1895  nulls[0] = true;
1896 
1897  values[1] = Int32GetDatum(notify->be_pid);
1898 
1899  if (notify->extra != NULL)
1900  values[2] = CStringGetTextDatum(notify->extra);
1901  else
1902  nulls[2] = true;
1903 
1904  tuplestore_putvalues(rsinfo->setResult, rsinfo->setDesc, values, nulls);
1905 
1906  PQfreemem(notify);
1908  }
1909 
1910  return (Datum) 0;
1911 }
static Datum values[MAXATTR]
Definition: bootstrap.c:156
void PQfreemem(void *ptr)
Definition: fe-exec.c:3865
PGnotify * PQnotifies(PGconn *conn)
Definition: fe-exec.c:2548
int PQconsumeInput(PGconn *conn)
Definition: fe-exec.c:1953
void InitMaterializedSRF(FunctionCallInfo fcinfo, bits32 flags)
Definition: funcapi.c:76
static Datum Int32GetDatum(int32 X)
Definition: postgres.h:212
TupleDesc setDesc
Definition: execnodes.h:332
Tuplestorestate * setResult
Definition: execnodes.h:331
int be_pid
Definition: libpq-fe.h:190
char * relname
Definition: libpq-fe.h:189
char * extra
Definition: libpq-fe.h:191
void tuplestore_putvalues(Tuplestorestate *state, TupleDesc tdesc, Datum *values, bool *isnull)
Definition: tuplestore.c:750

References pgNotify::be_pid, remoteConn::conn, conn, CStringGetTextDatum, dblink_get_named_conn(), dblink_init(), DBLINK_NOTIFY_COLS, pgNotify::extra, InitMaterializedSRF(), Int32GetDatum(), pconn, PG_GETARG_TEXT_PP, PG_NARGS, PQconsumeInput(), PQfreemem(), PQnotifies(), pgNotify::relname, ReturnSetInfo::setDesc, ReturnSetInfo::setResult, text_to_cstring(), tuplestore_putvalues(), and values.

◆ dblink_get_pkey()

Datum dblink_get_pkey ( PG_FUNCTION_ARGS  )

Definition at line 1483 of file dblink.c.

1484 {
1485  int16 indnkeyatts;
1486  char **results;
1487  FuncCallContext *funcctx;
1488  int32 call_cntr;
1489  int32 max_calls;
1490  AttInMetadata *attinmeta;
1491  MemoryContext oldcontext;
1492 
1493  /* stuff done only on the first call of the function */
1494  if (SRF_IS_FIRSTCALL())
1495  {
1496  Relation rel;
1497  TupleDesc tupdesc;
1498 
1499  /* create a function context for cross-call persistence */
1500  funcctx = SRF_FIRSTCALL_INIT();
1501 
1502  /*
1503  * switch to memory context appropriate for multiple function calls
1504  */
1505  oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
1506 
1507  /* open target relation */
1509 
1510  /* get the array of attnums */
1511  results = get_pkey_attnames(rel, &indnkeyatts);
1512 
1514 
1515  /*
1516  * need a tuple descriptor representing one INT and one TEXT column
1517  */
1518  tupdesc = CreateTemplateTupleDesc(2);
1519  TupleDescInitEntry(tupdesc, (AttrNumber) 1, "position",
1520  INT4OID, -1, 0);
1521  TupleDescInitEntry(tupdesc, (AttrNumber) 2, "colname",
1522  TEXTOID, -1, 0);
1523 
1524  /*
1525  * Generate attribute metadata needed later to produce tuples from raw
1526  * C strings
1527  */
1528  attinmeta = TupleDescGetAttInMetadata(tupdesc);
1529  funcctx->attinmeta = attinmeta;
1530 
1531  if ((results != NULL) && (indnkeyatts > 0))
1532  {
1533  funcctx->max_calls = indnkeyatts;
1534 
1535  /* got results, keep track of them */
1536  funcctx->user_fctx = results;
1537  }
1538  else
1539  {
1540  /* fast track when no results */
1541  MemoryContextSwitchTo(oldcontext);
1542  SRF_RETURN_DONE(funcctx);
1543  }
1544 
1545  MemoryContextSwitchTo(oldcontext);
1546  }
1547 
1548  /* stuff done on every call of the function */
1549  funcctx = SRF_PERCALL_SETUP();
1550 
1551  /*
1552  * initialize per-call variables
1553  */
1554  call_cntr = funcctx->call_cntr;
1555  max_calls = funcctx->max_calls;
1556 
1557  results = (char **) funcctx->user_fctx;
1558  attinmeta = funcctx->attinmeta;
1559 
1560  if (call_cntr < max_calls) /* do when there is more left to send */
1561  {
1562  char **values;
1563  HeapTuple tuple;
1564  Datum result;
1565 
1566  values = palloc_array(char *, 2);
1567  values[0] = psprintf("%d", call_cntr + 1);
1568  values[1] = results[call_cntr];
1569 
1570  /* build the tuple */
1571  tuple = BuildTupleFromCStrings(attinmeta, values);
1572 
1573  /* make the tuple into a datum */
1574  result = HeapTupleGetDatum(tuple);
1575 
1576  SRF_RETURN_NEXT(funcctx, result);
1577  }
1578  else
1579  {
1580  /* do when there is no more left */
1581  SRF_RETURN_DONE(funcctx);
1582  }
1583 }
int16 AttrNumber
Definition: attnum.h:21
signed short int16
Definition: c.h:477
HeapTuple BuildTupleFromCStrings(AttInMetadata *attinmeta, char **values)
Definition: execTuples.c:2135
AttInMetadata * TupleDescGetAttInMetadata(TupleDesc tupdesc)
Definition: execTuples.c:2086
#define palloc_array(type, count)
Definition: fe_memutils.h:64
#define SRF_IS_FIRSTCALL()
Definition: funcapi.h:303
#define SRF_PERCALL_SETUP()
Definition: funcapi.h:307
#define SRF_RETURN_NEXT(_funcctx, _result)
Definition: funcapi.h:309
#define SRF_FIRSTCALL_INIT()
Definition: funcapi.h:305
static Datum HeapTupleGetDatum(const HeapTupleData *tuple)
Definition: funcapi.h:230
#define SRF_RETURN_DONE(_funcctx)
Definition: funcapi.h:327
if(TABLE==NULL||TABLE_index==NULL)
Definition: isn.c:77
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:138
char * psprintf(const char *fmt,...)
Definition: psprintf.c:46
void * user_fctx
Definition: funcapi.h:82
uint64 max_calls
Definition: funcapi.h:74
uint64 call_cntr
Definition: funcapi.h:65
AttInMetadata * attinmeta
Definition: funcapi.h:91
MemoryContext multi_call_memory_ctx
Definition: funcapi.h:101
TupleDesc CreateTemplateTupleDesc(int natts)
Definition: tupdesc.c:45
void TupleDescInitEntry(TupleDesc desc, AttrNumber attributeNumber, const char *attributeName, Oid oidtypeid, int32 typmod, int attdim)
Definition: tupdesc.c:583

References AccessShareLock, ACL_SELECT, FuncCallContext::attinmeta, BuildTupleFromCStrings(), FuncCallContext::call_cntr, CreateTemplateTupleDesc(), get_pkey_attnames(), get_rel_from_relname(), HeapTupleGetDatum(), if(), FuncCallContext::max_calls, MemoryContextSwitchTo(), FuncCallContext::multi_call_memory_ctx, palloc_array, PG_GETARG_TEXT_PP, psprintf(), relation_close(), SRF_FIRSTCALL_INIT, SRF_IS_FIRSTCALL, SRF_PERCALL_SETUP, SRF_RETURN_DONE, SRF_RETURN_NEXT, TupleDescGetAttInMetadata(), TupleDescInitEntry(), FuncCallContext::user_fctx, and values.

◆ dblink_get_result()

Datum dblink_get_result ( PG_FUNCTION_ARGS  )

Definition at line 680 of file dblink.c.

681 {
682  return dblink_record_internal(fcinfo, true);
683 }

References dblink_record_internal().

◆ dblink_init()

◆ dblink_is_busy()

Datum dblink_is_busy ( PG_FUNCTION_ARGS  )

Definition at line 1303 of file dblink.c.

1304 {
1305  PGconn *conn;
1306 
1307  dblink_init();
1309 
1312 }
int PQisBusy(PGconn *conn)
Definition: fe-exec.c:2000
#define PG_RETURN_INT32(x)
Definition: fmgr.h:354

References conn, dblink_get_named_conn(), dblink_init(), PG_GETARG_TEXT_PP, PG_RETURN_INT32, PQconsumeInput(), PQisBusy(), and text_to_cstring().

◆ dblink_open()

Datum dblink_open ( PG_FUNCTION_ARGS  )

Definition at line 374 of file dblink.c.

375 {
376  PGresult *res = NULL;
377  PGconn *conn;
378  char *curname = NULL;
379  char *sql = NULL;
380  char *conname = NULL;
382  remoteConn *rconn = NULL;
383  bool fail = true; /* default to backward compatible behavior */
384 
385  dblink_init();
387 
388  if (PG_NARGS() == 2)
389  {
390  /* text,text */
391  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
393  rconn = pconn;
394  }
395  else if (PG_NARGS() == 3)
396  {
397  /* might be text,text,text or text,text,bool */
398  if (get_fn_expr_argtype(fcinfo->flinfo, 2) == BOOLOID)
399  {
400  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
402  fail = PG_GETARG_BOOL(2);
403  rconn = pconn;
404  }
405  else
406  {
407  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
408  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
410  rconn = getConnectionByName(conname);
411  }
412  }
413  else if (PG_NARGS() == 4)
414  {
415  /* text,text,text,bool */
416  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
417  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
419  fail = PG_GETARG_BOOL(3);
420  rconn = getConnectionByName(conname);
421  }
422 
423  if (!rconn || !rconn->conn)
424  dblink_conn_not_avail(conname);
425 
426  conn = rconn->conn;
427 
428  /* If we are not in a transaction, start one */
430  {
431  res = PQexec(conn, "BEGIN");
433  dblink_res_internalerror(conn, res, "begin error");
434  PQclear(res);
435  rconn->newXactForCursor = true;
436 
437  /*
438  * Since transaction state was IDLE, we force cursor count to
439  * initially be 0. This is needed as a previous ABORT might have wiped
440  * out our transaction without maintaining the cursor count for us.
441  */
442  rconn->openCursorCount = 0;
443  }
444 
445  /* if we started a transaction, increment cursor count */
446  if (rconn->newXactForCursor)
447  (rconn->openCursorCount)++;
448 
449  appendStringInfo(&buf, "DECLARE %s CURSOR FOR %s", curname, sql);
450  res = PQexec(conn, buf.data);
452  {
453  dblink_res_error(conn, conname, res, fail,
454  "while opening cursor \"%s\"", curname);
456  }
457 
458  PQclear(res);
460 }
PGTransactionStatusType PQtransactionStatus(const PGconn *conn)
Definition: fe-connect.c:6698
@ PQTRANS_IDLE
Definition: libpq-fe.h:118

References appendStringInfo(), buf, remoteConn::conn, conn, cstring_to_text(), dblink_init(), dblink_res_error(), get_fn_expr_argtype(), getConnectionByName(), initStringInfo(), remoteConn::newXactForCursor, remoteConn::openCursorCount, pconn, PG_GETARG_BOOL, PG_GETARG_TEXT_PP, PG_NARGS, PG_RETURN_TEXT_P, PGRES_COMMAND_OK, PQclear(), PQexec(), PQresultStatus(), PQTRANS_IDLE, PQtransactionStatus(), res, and text_to_cstring().

◆ dblink_record()

Datum dblink_record ( PG_FUNCTION_ARGS  )

Definition at line 648 of file dblink.c.

649 {
650  return dblink_record_internal(fcinfo, false);
651 }

References dblink_record_internal().

◆ dblink_record_internal()

static Datum dblink_record_internal ( FunctionCallInfo  fcinfo,
bool  is_async 
)
static

Definition at line 686 of file dblink.c.

687 {
688  PGconn *volatile conn = NULL;
689  volatile bool freeconn = false;
690 
691  prepTuplestoreResult(fcinfo);
692 
693  dblink_init();
694 
695  PG_TRY();
696  {
697  char *sql = NULL;
698  char *conname = NULL;
699  bool fail = true; /* default to backward compatible */
700 
701  if (!is_async)
702  {
703  if (PG_NARGS() == 3)
704  {
705  /* text,text,bool */
706  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
708  fail = PG_GETARG_BOOL(2);
709  dblink_get_conn(conname, &conn, &conname, &freeconn);
710  }
711  else if (PG_NARGS() == 2)
712  {
713  /* text,text or text,bool */
714  if (get_fn_expr_argtype(fcinfo->flinfo, 1) == BOOLOID)
715  {
717  fail = PG_GETARG_BOOL(1);
718  conn = pconn->conn;
719  }
720  else
721  {
722  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
724  dblink_get_conn(conname, &conn, &conname, &freeconn);
725  }
726  }
727  else if (PG_NARGS() == 1)
728  {
729  /* text */
730  conn = pconn->conn;
732  }
733  else
734  /* shouldn't happen */
735  elog(ERROR, "wrong number of arguments");
736  }
737  else /* is_async */
738  {
739  /* get async result */
740  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
741 
742  if (PG_NARGS() == 2)
743  {
744  /* text,bool */
745  fail = PG_GETARG_BOOL(1);
746  conn = dblink_get_named_conn(conname);
747  }
748  else if (PG_NARGS() == 1)
749  {
750  /* text */
751  conn = dblink_get_named_conn(conname);
752  }
753  else
754  /* shouldn't happen */
755  elog(ERROR, "wrong number of arguments");
756  }
757 
758  if (!conn)
759  dblink_conn_not_avail(conname);
760 
761  if (!is_async)
762  {
763  /* synchronous query, use efficient tuple collection method */
764  materializeQueryResult(fcinfo, conn, conname, sql, fail);
765  }
766  else
767  {
768  /* async result retrieval, do it the old way */
770 
771  /* NULL means we're all done with the async results */
772  if (res)
773  {
776  {
777  dblink_res_error(conn, conname, res, fail,
778  "while executing query");
779  /* if fail isn't set, we'll return an empty query result */
780  }
781  else
782  {
783  materializeResult(fcinfo, conn, res);
784  }
785  }
786  }
787  }
788  PG_FINALLY();
789  {
790  /* if needed, close the connection to the database */
791  if (freeconn)
793  }
794  PG_END_TRY();
795 
796  return (Datum) 0;
797 }
PGresult * PQgetResult(PGconn *conn)
Definition: fe-exec.c:2031
FmgrInfo * flinfo
Definition: fmgr.h:87

References remoteConn::conn, conn, dblink_get_conn(), dblink_get_named_conn(), dblink_init(), dblink_res_error(), elog(), ERROR, FunctionCallInfoBaseData::flinfo, get_fn_expr_argtype(), libpqsrv_disconnect(), materializeQueryResult(), materializeResult(), pconn, PG_END_TRY, PG_FINALLY, PG_GETARG_BOOL, PG_GETARG_TEXT_PP, PG_NARGS, PG_TRY, PGRES_COMMAND_OK, PGRES_TUPLES_OK, PQgetResult(), PQresultStatus(), prepTuplestoreResult(), res, and text_to_cstring().

Referenced by dblink_get_result(), and dblink_record().

◆ dblink_res_error()

static void dblink_res_error ( PGconn conn,
const char *  conname,
PGresult res,
bool  fail,
const char *  fmt,
  ... 
)
static

Definition at line 2656 of file dblink.c.

2658 {
2659  int level;
2660  char *pg_diag_sqlstate = PQresultErrorField(res, PG_DIAG_SQLSTATE);
2661  char *pg_diag_message_primary = PQresultErrorField(res, PG_DIAG_MESSAGE_PRIMARY);
2662  char *pg_diag_message_detail = PQresultErrorField(res, PG_DIAG_MESSAGE_DETAIL);
2663  char *pg_diag_message_hint = PQresultErrorField(res, PG_DIAG_MESSAGE_HINT);
2664  char *pg_diag_context = PQresultErrorField(res, PG_DIAG_CONTEXT);
2665  int sqlstate;
2666  char *message_primary;
2667  char *message_detail;
2668  char *message_hint;
2669  char *message_context;
2670  va_list ap;
2671  char dblink_context_msg[512];
2672 
2673  if (fail)
2674  level = ERROR;
2675  else
2676  level = NOTICE;
2677 
2678  if (pg_diag_sqlstate)
2679  sqlstate = MAKE_SQLSTATE(pg_diag_sqlstate[0],
2680  pg_diag_sqlstate[1],
2681  pg_diag_sqlstate[2],
2682  pg_diag_sqlstate[3],
2683  pg_diag_sqlstate[4]);
2684  else
2685  sqlstate = ERRCODE_CONNECTION_FAILURE;
2686 
2687  message_primary = xpstrdup(pg_diag_message_primary);
2688  message_detail = xpstrdup(pg_diag_message_detail);
2689  message_hint = xpstrdup(pg_diag_message_hint);
2690  message_context = xpstrdup(pg_diag_context);
2691 
2692  /*
2693  * If we don't get a message from the PGresult, try the PGconn. This is
2694  * needed because for connection-level failures, PQexec may just return
2695  * NULL, not a PGresult at all.
2696  */
2697  if (message_primary == NULL)
2698  message_primary = pchomp(PQerrorMessage(conn));
2699 
2700  /*
2701  * Now that we've copied all the data we need out of the PGresult, it's
2702  * safe to free it. We must do this to avoid PGresult leakage. We're
2703  * leaking all the strings too, but those are in palloc'd memory that will
2704  * get cleaned up eventually.
2705  */
2706  PQclear(res);
2707 
2708  /*
2709  * Format the basic errcontext string. Below, we'll add on something
2710  * about the connection name. That's a violation of the translatability
2711  * guidelines about constructing error messages out of parts, but since
2712  * there's no translation support for dblink, there's no need to worry
2713  * about that (yet).
2714  */
2715  va_start(ap, fmt);
2716  vsnprintf(dblink_context_msg, sizeof(dblink_context_msg), fmt, ap);
2717  va_end(ap);
2718 
2719  ereport(level,
2720  (errcode(sqlstate),
2721  (message_primary != NULL && message_primary[0] != '\0') ?
2722  errmsg_internal("%s", message_primary) :
2723  errmsg("could not obtain message string for remote error"),
2724  message_detail ? errdetail_internal("%s", message_detail) : 0,
2725  message_hint ? errhint("%s", message_hint) : 0,
2726  message_context ? (errcontext("%s", message_context)) : 0,
2727  conname ?
2728  (errcontext("%s on dblink connection named \"%s\"",
2729  dblink_context_msg, conname)) :
2730  (errcontext("%s on unnamed dblink connection",
2731  dblink_context_msg))));
2732 }
int errmsg_internal(const char *fmt,...)
Definition: elog.c:1156
#define errcontext
Definition: elog.h:196
#define MAKE_SQLSTATE(ch1, ch2, ch3, ch4, ch5)
Definition: elog.h:56
#define NOTICE
Definition: elog.h:35
char * PQresultErrorField(const PGresult *res, int fieldcode)
Definition: fe-exec.c:3295
static void const char * fmt
va_end(args)
va_start(args, fmt)
#define vsnprintf
Definition: port.h:237
#define PG_DIAG_MESSAGE_HINT
Definition: postgres_ext.h:59
#define PG_DIAG_SQLSTATE
Definition: postgres_ext.h:56
#define PG_DIAG_MESSAGE_PRIMARY
Definition: postgres_ext.h:57
#define PG_DIAG_MESSAGE_DETAIL
Definition: postgres_ext.h:58
#define PG_DIAG_CONTEXT
Definition: postgres_ext.h:63

References conn, ereport, errcode(), errcontext, errdetail_internal(), errhint(), errmsg(), errmsg_internal(), ERROR, fmt, MAKE_SQLSTATE, NOTICE, pchomp(), PG_DIAG_CONTEXT, PG_DIAG_MESSAGE_DETAIL, PG_DIAG_MESSAGE_HINT, PG_DIAG_MESSAGE_PRIMARY, PG_DIAG_SQLSTATE, PQclear(), PQerrorMessage(), PQresultErrorField(), res, va_end(), va_start(), vsnprintf, and xpstrdup().

Referenced by dblink_close(), dblink_exec(), dblink_fetch(), dblink_open(), and dblink_record_internal().

◆ dblink_security_check()

static void dblink_security_check ( PGconn conn,
remoteConn rconn 
)
static

Definition at line 2588 of file dblink.c.

2589 {
2590  if (!superuser())
2591  {
2593  {
2595  if (rconn)
2596  pfree(rconn);
2597 
2598  ereport(ERROR,
2599  (errcode(ERRCODE_S_R_E_PROHIBITED_SQL_STATEMENT_ATTEMPTED),
2600  errmsg("password is required"),
2601  errdetail("Non-superuser cannot connect if the server does not request a password."),
2602  errhint("Target server's authentication method must be changed.")));
2603  }
2604  }
2605 }
int PQconnectionUsedPassword(const PGconn *conn)
Definition: fe-connect.c:6809

References conn, ereport, errcode(), errdetail(), errhint(), errmsg(), ERROR, libpqsrv_disconnect(), pfree(), PQconnectionUsedPassword(), and superuser().

Referenced by dblink_connect(), and dblink_get_conn().

◆ dblink_send_query()

Datum dblink_send_query ( PG_FUNCTION_ARGS  )

Definition at line 655 of file dblink.c.

656 {
657  PGconn *conn;
658  char *sql;
659  int retval;
660 
661  if (PG_NARGS() == 2)
662  {
665  }
666  else
667  /* shouldn't happen */
668  elog(ERROR, "wrong number of arguments");
669 
670  /* async query send */
671  retval = PQsendQuery(conn, sql);
672  if (retval != 1)
673  elog(NOTICE, "could not send query: %s", pchomp(PQerrorMessage(conn)));
674 
675  PG_RETURN_INT32(retval);
676 }
int PQsendQuery(PGconn *conn, const char *query)
Definition: fe-exec.c:1418

References conn, dblink_get_named_conn(), elog(), ERROR, NOTICE, pchomp(), PG_GETARG_TEXT_PP, PG_NARGS, PG_RETURN_INT32, PQerrorMessage(), PQsendQuery(), and text_to_cstring().

◆ deleteConnection()

static void deleteConnection ( const char *  name)
static

Definition at line 2567 of file dblink.c.

2568 {
2569  remoteConnHashEnt *hentry;
2570  bool found;
2571  char *key;
2572 
2573  if (!remoteConnHash)
2575 
2576  key = pstrdup(name);
2577  truncate_identifier(key, strlen(key), false);
2579  key, HASH_REMOVE, &found);
2580 
2581  if (!hentry)
2582  ereport(ERROR,
2583  (errcode(ERRCODE_UNDEFINED_OBJECT),
2584  errmsg("undefined connection name")));
2585 }
@ HASH_REMOVE
Definition: hsearch.h:115

References createConnHash(), ereport, errcode(), errmsg(), ERROR, HASH_REMOVE, hash_search(), sort-test::key, name, pstrdup(), remoteConnHash, and truncate_identifier().

Referenced by dblink_disconnect().

◆ elog()

elog ( ERROR  ,
"%s: %s"  ,
p2  ,
msg   
)

Referenced by _bt_allequalimage(), _bt_buildadd(), _bt_check_rowcompare(), _bt_check_third_page(), _bt_check_unique(), _bt_compare_scankey_args(), _bt_dedup_finish_pending(), _bt_dedup_pass(), _bt_delitems_delete(), _bt_delitems_vacuum(), _bt_endpoint(), _bt_find_extreme_element(), _bt_findsplitloc(), _bt_finish_split(), _bt_first(), _bt_get_endpoint(), _bt_getbuf(), _bt_getroot(), _bt_gettrueroot(), _bt_insert_parent(), _bt_insertonpg(), _bt_mark_page_halfdead(), _bt_mark_scankey_required(), _bt_moveright(), _bt_newroot(), _bt_preprocess_array_keys(), _bt_preprocess_keys(), _bt_restore_page(), _bt_sort_array_elements(), _bt_sortaddtup(), _bt_split(), _bt_start_vacuum(), _bt_stepright(), _bt_swap_posting(), _bt_unlink_halfdead_page(), _bt_walk_left(), _copyA_Const(), _equalList(), _hash_datum2hashkey_type(), _hash_firstfreebit(), _hash_freeovflpage(), _hash_getbuf(), _hash_getbuf_with_condlock_cleanup(), _hash_getbuf_with_strategy(), _hash_getinitbuf(), _hash_getnewbuf(), _hash_init(), _hash_pgaddmultitup(), _hash_pgaddtup(), _jumbleA_Const(), _jumbleList(), _jumbleNode(), _jumbleRangeTblEntry(), _ltree_consistent(), _mdfd_getseg(), _metaphone(), _outA_Expr(), _outConstraint(), _outList(), _outRangeTblEntry(), _PG_init(), _readA_Expr(), _readBitmapset(), _readBoolExpr(), _readConstraint(), _readExtensibleNode(), _readRangeTblEntry(), _SPI_cursor_operation(), _SPI_pquery(), _tarWriteHeader(), AbortSubTransaction(), AbortTransaction(), aclcheck_error(), aclcheck_error_col(), acldefault(), acldefault_sql(), aclmask(), aclmask_direct(), AcquireRewriteLocks(), add_base_rels_to_query(), add_cast_to(), add_function_cost(), add_function_defaults(), add_nullingrels_if_needed(), add_row_identity_var(), add_vars_to_targetlist(), AddFileToBackupManifest(), addFkRecurseReferenced(), addLeafTuple(), addNode(), addOrReplaceTuple(), addRangeTableEntryForENR(), AddRoleMems(), AddSubscriptionRelState(), addTargetToSortList(), AddWaitEventToSet(), adjust_appendrel_attrs_multilevel(), adjust_appendrel_attrs_mutator(), adjust_child_relids_multilevel(), adjust_inherited_attnums(), adjust_inherited_attnums_multilevel(), adjust_partition_colnos_using_map(), adjust_view_column_set(), AdjustIntervalForTypmod(), advance_windowaggregate_base(), AdvanceXLInsertBuffer(), AfterTriggerExecute(), afterTriggerInvokeEvents(), AfterTriggerSaveEvent(), agg_args_support_sendreceive(), AggregateCreate(), AggRegisterCallback(), AlignedAllocFree(), allocacl(), allocate_reloption(), AllocateDir(), AllocateFile(), AllocateVfd(), AllocSetFree(), AllocSetRealloc(), AlterCollation(), AlterDatabaseRefreshColl(), AlterDomainAddConstraint(), AlterDomainDefault(), AlterDomainDropConstraint(), AlterDomainNotNull(), AlterDomainValidateConstraint(), AlterEnum(), AlterExtensionNamespace(), AlterFunction(), AlterObjectNamespace_internal(), AlterObjectOwner_internal(), AlterObjectRename_internal(), AlterOperator(), AlterOpFamilyAdd(), AlterOpFamilyDrop(), AlterRelationNamespaceInternal(), AlterRole(), AlterSchemaOwner_oid(), AlterSequence(), AlterStatistics(), AlterSubscription(), AlterSystemSetConfigFile(), AlterTableGetLockLevel(), AlterTSDictionary(), AlterTypeNamespaceInternal(), AlterTypeOwner_oid(), AlterTypeOwnerInternal(), AlterTypeRecurse(), AlterUserMapping(), amvalidate(), analyzeCTE(), AnonymousShmemDetach(), appendFunctionName(), appendOrderByClause(), appendOrderBySuffix(), AppendStringToManifest(), apply_handle_delete_internal(), apply_handle_stream_abort(), apply_handle_stream_commit(), apply_handle_stream_prepare(), apply_handle_stream_start(), apply_handle_stream_stop(), apply_handle_tuple_routing(), apply_handle_update_internal(), apply_map_update(), apply_pathtarget_labeling_to_tlist(), apply_spooled_messages(), ApplyExtensionUpdates(), ApplyRetrieveRule(), ApplyWorkerMain(), array_agg_array_combine(), array_agg_array_transfn(), array_agg_combine(), array_agg_deserialize(), array_agg_transfn(), array_create_iterator(), array_exec_setup(), array_fill(), array_fill_with_lower_bounds(), array_typanalyze(), ASN1_STRING_to_text(), assign_client_encoding(), assign_collations_walker(), assignOperTypes(), AssignPostmasterChildSlot(), assignProcTypes(), AssignTransactionId(), Async_Listen(), Async_Notify(), Async_Unlisten(), Async_UnlistenAll(), ATAddForeignKeyConstraint(), AtCleanup_Portals(), AtCommit_Notify(), ATDetachCheckNoForeignKeyRefs(), AtEOSubXact_cleanup(), AtEOSubXact_HashTables(), AtEOSubXact_Namespace(), AtEOSubXact_Parallel(), AtEOXact_cleanup(), AtEOXact_HashTables(), AtEOXact_Namespace(), AtEOXact_Parallel(), AtEOXact_Snapshot(), ATExecAddColumn(), ATExecAddConstraint(), ATExecAddIndexConstraint(), ATExecAddOf(), ATExecAlterColumnType(), ATExecChangeOwner(), ATExecCmd(), ATExecDetachPartition(), ATExecDropColumn(), ATExecDropConstraint(), ATExecDropExpression(), ATExecDropNotNull(), ATExecDropOf(), ATExecForceNoForceRowSecurity(), ATExecReplicaIdentity(), ATExecSetIdentity(), ATExecSetRelOptions(), ATExecSetRowSecurity(), ATExecValidateConstraint(), ATParseTransformCmd(), ATPostAlterTypeCleanup(), ATPostAlterTypeParse(), ATPrepCmd(), ATRewriteTable(), ATSimplePermissions(), AtStart_GUC(), AtSubCleanup_Portals(), AttachSession(), attnumAttName(), attnumCollationId(), attnumTypeId(), AttrDefaultFetch(), autoinc(), autovac_balance_cost(), AutoVacWorkerMain(), AuxiliaryProcessMain(), BackgroundWorkerStateChange(), basic_archive_file_internal(), be_gssapi_write(), be_lo_close(), be_lo_open(), before_stmt_triggers_fired(), begin_remote_xact(), BeginInternalSubTransaction(), BeginTransactionBlock(), BgBufferSync(), binary_decode(), binary_encode(), binary_upgrade_create_empty_extension(), binaryheap_add(), binaryheap_add_unordered(), BipartiteMatch(), bitmap_subplan_mark_shared(), BitmapAdjustPrefetchIterator(), BitmapHeapNext(), bitposition(), blbuild(), blinsert(), bloom_init(), bloomBuildCallback(), blvalidate(), bms_add_member(), bms_add_range(), bms_del_member(), bms_is_member(), bms_make_singleton(), bms_overlap_list(), bms_singleton_member(), BogusFree(), BogusGetChunkContext(), BogusGetChunkSpace(), BogusRealloc(), bool_accum_inv(), booltestsel(), boot_get_type_io_data(), boot_openrel(), BootstrapModeMain(), BootstrapToastTable(), bqarr_in(), brin_bloom_consistent(), brin_doinsert(), brin_doupdate(), brin_inclusion_consistent(), brin_metapage_info(), brin_minmax_consistent(), brin_minmax_multi_consistent(), brin_page_items(), brin_redo(), brin_xlog_insert_update(), brin_xlog_samepage_update(), brinbuild(), brincostestimate(), brinvalidate(), bt_check_every_level(), bt_check_level_from_leftmost(), bt_downlink_missing_check(), bt_metap(), bt_multi_page_stats(), bt_page_items_bytea(), bt_page_items_internal(), bt_page_print_tuples(), bt_page_stats_internal(), bt_target_page_check(), btbuild(), btcostestimate(), btree_redo(), btree_xlog_dedup(), btree_xlog_insert(), btree_xlog_mark_page_halfdead(), btree_xlog_split(), btree_xlog_unlink_page(), btree_xlog_updates(), btvalidate(), BufFileAppend(), BufFileDeleteFileSet(), BufFileSeek(), BufTableDelete(), build_coercion_expression(), build_column_default(), build_concat_foutcache(), build_datatype(), build_EvalXFuncInt(), build_expression_pathkey(), build_function_result_tupdesc_d(), build_index_tlist(), build_joinrel_tlist(), build_mss(), build_pgstattuple_type(), build_physical_tlist(), build_regexp_split_result(), build_replindex_scan_key(), build_row_from_vars(), build_server_final_message(), build_simple_rel(), build_subplan(), BuildDummyIndexInfo(), BuildIndexInfo(), buildMergedJoinVar(), BuildRelationExtStatistics(), BuildSpeculativeIndexInfo(), byteaout(), cache_locale_time(), cache_reduce_memory(), CachedPlanSetParentContext(), CacheInvalidateRelcacheByRelid(), CacheRegisterRelcacheCallback(), CacheRegisterSyscacheCallback(), calc_hist_selectivity(), calc_joinrel_size_estimate(), calc_multirangesel(), calc_rangesel(), call_pltcl_start_proc(), CallerFInfoFunctionCall1(), CallerFInfoFunctionCall2(), CallStmtResultDesc(), CallSyscacheCallbacks(), cancel_before_shmem_exit(), cannotCastJsonbValue(), CatalogCacheComputeHashValue(), CatalogCacheComputeTupleHashValue(), CatalogCacheInitializeCache(), char2wchar(), check_amop_signature(), check_amproc_signature(), check_default_text_search_config(), check_domain_for_new_field(), check_encoding_conversion_args(), check_exclusion_or_unique_constraint(), check_float8_array(), check_foreign_key(), check_hash_func_signature(), check_hostname(), check_locale(), check_object_ownership(), check_on_shmem_exit_lists_are_empty(), check_primary_key(), check_role_grantor(), check_with_filler(), CheckArchiveTimeout(), CheckConstraintFetch(), CheckDateTokenTable(), CheckFunctionValidatorAccess(), CheckIndexCompatible(), CheckMyDatabase(), CheckPointLogicalRewriteHeap(), CheckPointReplicationSlots(), CheckPointSnapBuild(), CheckRecoveryConsistency(), CheckRelationLockedByMe(), CheckSASLAuth(), checkSplitConditions(), checkTargetlistEntrySQL92(), CheckValidResultRel(), CheckVarSlotCompatibility(), checkWellFormedRecursion(), checkWellFormedRecursionWalker(), checkWellFormedSelectStmt(), ChoosePortalStrategy(), cipher_free_callback(), ClassifyUtilityCommandAsReadOnly(), clause_selectivity_ext(), CleanupBackupHistory(), CleanUpLock(), CleanupProcSignalState(), CleanupSubTransaction(), CleanupTempFiles(), CleanupTransaction(), clear_subscription_skip_lsn(), clog_redo(), CloneFkReferenced(), CloneFkReferencing(), CloneRowTriggersToPartition(), ClosePipeStream(), closerel(), CloseTransientFile(), coerce_type(), CollationIsVisible(), collectMatchesForHeapRow(), CommandCounterIncrement(), CommandIsReadOnly(), commit_ts_redo(), CommitSubTransaction(), CommitTransaction(), CommitTransactionCommand(), CommuteOpExpr(), compare_tlist_datatypes(), compare_values_of_enum(), compareDatetime(), CompareIndexInfo(), compareItems(), compareJsonbContainers(), compareJsonbScalarValue(), comparison_shim(), compile_plperl_function(), compile_pltcl_function(), compute_array_stats(), compute_function_attributes(), compute_new_xmax_infomask(), compute_tsvector_stats(), computeDelta(), computeDistance(), ComputeIndexAttrs(), computeLeafRecompressWALData(), config_enum_lookup_by_value(), connectby(), ConstraintSetParentConstraint(), construct_array_builtin(), ConstructTupleDescriptor(), ConversionCreate(), ConversionIsVisible(), convert_aclright_to_string(), convert_subquery_pathkeys(), convert_testexpr_mutator(), convertJsonbScalar(), convertJsonbValue(), copy_plpgsql_datums(), copy_replication_slot(), copy_table_data(), CopyArrayEls(), CopyCachedPlan(), CopyConversionError(), copyObjectImpl(), CopyXLogRecordToWAL(), cost_bitmap_tree_node(), cost_qual_eval_walker(), count_usable_fds(), create_and_test_bloom(), create_append_plan(), create_bitmap_subplan(), create_ctescan_plan(), create_foreign_join_path(), create_foreign_modify(), create_gather_merge_plan(), create_hash_bounds(), create_indexscan_plan(), create_internal(), create_join_plan(), create_list_bounds(), create_merge_append_plan(), create_mergejoin_plan(), create_plan(), create_plan_recurse(), create_range_bounds(), create_scan_plan(), create_toast_table(), create_unique_plan(), create_worktablescan_plan(), CreateAnonymousSegment(), CreateCast(), CreateCheckPoint(), CreateCommandTag(), createdb(), CreateDecodingContext(), CreateEndOfRecoveryRecord(), CreateExtension(), createForeignKeyActionTriggers(), CreateInitDecodingContext(), CreateLockFile(), CreateOverwriteContrecordRecord(), CreatePartitionPruneState(), createPostingTree(), CreateRole(), CreateSchemaCommand(), CreateSharedMemoryAndSemaphores(), CreateSubscription(), CreateTableSpace(), CreateTransform(), CreateTriggerFiringOn(), CreateWaitEventSet(), crosstab(), cryptohash_internal(), currtid_for_view(), currtid_internal(), dataBeginPlaceToPageLeaf(), datum_image_eq(), datum_image_hash(), datum_to_jsonb(), datum_write(), datumGetSize(), dbase_redo(), dblink_exec(), dblink_record_internal(), dblink_send_query(), DCH_cache_getnew(), DeadLockCheck(), DeadLockCheckRecurse(), DecodeTextArrayToBitmapset(), DecodingContextFindStartpoint(), decompile_conbin(), deconstruct_array_builtin(), deconstruct_distribute(), deconstruct_recurse(), DeconstructFkConstraintRow(), defGetString(), defGetStringList(), defGetTypeLength(), DefineAttr(), DefineCollation(), DefineDomain(), DefineIndex(), DefineOpClass(), DefineRelation(), DefineSavepoint(), DefineTSConfiguration(), DefineView(), Delete(), DeleteRelationTuple(), DeleteSequenceTuple(), DelRoleMems(), deparseAnalyzeSql(), deparseExpr(), deparseOpExpr(), deparseScalarArrayOpExpr(), dependency_degree(), deregister_seq_scan(), deserialize_deflist(), DetachPartitionFinalize(), detoast_attr_slice(), digest_block_size(), digest_finish(), digest_free_callback(), digest_reset(), digest_result_size(), digest_update(), DirectFunctionCall1Coll(), DirectFunctionCall2Coll(), DirectFunctionCall3Coll(), DirectFunctionCall4Coll(), DirectFunctionCall5Coll(), DirectFunctionCall6Coll(), DirectFunctionCall7Coll(), DirectFunctionCall8Coll(), DirectFunctionCall9Coll(), DirectInputFunctionCallSafe(), DisableSubscription(), DiscardCommand(), disconnect_cached_connections(), distribute_qual_to_rels(), distribute_restrictinfo_to_rels(), do_analyze_rel(), do_autovacuum(), do_compile(), do_serialize(), do_serialize_binary(), do_setval(), doDeletion(), does_not_exist_skipping(), domain_check_input(), doPickSplit(), DoPortalRunFetch(), drain(), dropdb(), DropObjectById(), DropRelationAllLocalBuffers(), DropRelationLocalBuffers(), DropRole(), dsa_allocate_extended(), dsa_pin(), dsa_unpin(), dsm_attach(), dsm_cleanup_for_mmap(), dsm_cleanup_using_control_segment(), dsm_impl_op(), dsm_impl_sysv(), dsm_pin_segment(), dsm_postmaster_shutdown(), dsm_postmaster_startup(), dsm_unpin_segment(), dump_stmt(), dumptuples(), edge_failure(), enable_timeouts(), EncodeSpecialDate(), EncodeSpecialTimestamp(), encrypt_password(), EndTransactionBlock(), enlargeStringInfo(), ensure_active_superblock(), ensure_last_message(), EnsurePortalSnapshotExists(), entryExecPlaceToPage(), entryLoadMoreItems(), entrySplitPage(), eqjoinsel(), equal(), equalsJsonbScalarValue(), err_generic_string(), errdatatype(), errdetail_relkind_not_supported(), estimate_multivariate_ndistinct(), eval_const_expressions_mutator(), eval_windowaggregates(), EvalPlanQualFetchRowMark(), EventTriggerCommonSetup(), EventTriggerInvoke(), examine_attribute(), examine_expression(), examine_simple_variable(), examine_variable(), exec_assign_value(), exec_check_assignable(), exec_dynquery_with_params(), exec_eval_datum(), Exec_ListenPreCommit(), exec_move_row_from_fields(), exec_object_restorecon(), exec_prepare_plan(), exec_replication_command(), exec_run_select(), exec_save_simple_expr(), exec_stmt_block(), exec_stmt_call(), exec_stmt_dynexecute(), exec_stmt_execsql(), exec_stmt_forc(), exec_stmt_getdiag(), exec_stmt_open(), exec_stmt_raise(), exec_stmt_return(), exec_stmt_return_next(), exec_stmt_return_query(), exec_stmts(), Exec_UnlistenAllCommit(), Exec_UnlistenCommit(), ExecAlterDefaultPrivilegesStmt(), ExecAlterExtensionContentsStmt(), ExecAlterExtensionStmt(), ExecAlterObjectSchemaStmt(), ExecAlterOwnerStmt(), ExecAsyncConfigureWait(), ExecAsyncNotify(), ExecAsyncRequest(), ExecAsyncResponse(), ExecBitmapAnd(), ExecBitmapIndexScan(), ExecBitmapOr(), ExecBuildAuxRowMark(), ExecBuildUpdateProjection(), ExecCheckIndexConstraints(), ExecCheckPermissionsModified(), ExecCheckTIDVisible(), ExecCreateTableAs(), ExecCrossPartitionUpdate(), execCurrentOf(), ExecDelete(), ExecEndNode(), ExecEvalFieldSelect(), ExecEvalFieldStoreDeForm(), ExecEvalNextValueExpr(), ExecEvalSysVar(), ExecEvalXmlExpr(), ExecFindRowMark(), ExecGetAncestorResultRels(), ExecGetResultRelCheckAsUser(), ExecGrant_Attribute(), ExecGrant_common(), ExecGrant_Largeobject(), ExecGrant_Parameter(), ExecGrant_Relation(), ExecGrantStmt_oids(), ExecHash(), ExecHashJoinImpl(), ExecHashSubPlan(), ExecHashTableCreate(), ExecIndexBuildScanKeys(), ExecIndexMarkPos(), ExecIndexOnlyMarkPos(), ExecIndexOnlyRestrPos(), ExecIndexRestrPos(), ExecInitAgg(), ExecInitCoerceToDomain(), ExecInitExprRec(), ExecInitForeignScan(), ExecInitFunctionResultSet(), ExecInitFunctionScan(), ExecInitHashJoin(), ExecInitMemoize(), ExecInitMerge(), ExecInitMergeJoin(), ExecInitModifyTable(), ExecInitNamedTuplestoreScan(), ExecInitNestLoop(), ExecInitNode(), ExecInitParallelPlan(), ExecInitPartitionInfo(), ExecInitStoredGenerated(), ExecInitSubPlan(), ExecInitWindowAgg(), ExecLimit(), ExecLockRows(), ExecLookupResultRelByOid(), ExecMarkPos(), ExecMemoize(), ExecMergeJoin(), ExecMergeMatched(), ExecMergeNotMatched(), ExecModifyTable(), ExecOnConflictUpdate(), ExecParallelHashJoinNewBatch(), ExecParallelReportInstrumentation(), ExecParallelRetrieveInstrumentation(), ExecRefreshMatView(), ExecReindex(), ExecRelCheck(), ExecRenameStmt(), ExecReScan(), ExecReScanModifyTable(), ExecReScanSetParamPlan(), ExecRestrPos(), ExecResultMarkPos(), ExecResultRestrPos(), ExecScanReScan(), ExecSetParamPlan(), ExecSetVariableStmt(), ExecStoreBufferHeapTuple(), ExecStoreHeapTuple(), ExecStoreMinimalTuple(), ExecStorePinnedBufferHeapTuple(), ExecSubPlan(), execTuplesHashPrepare(), ExecUpdate(), execute_extension_script(), execute_foreign_modify(), execute_jsp_gin_node(), executeBoolItem(), ExecuteCallStmt(), executeDateTimeMethod(), ExecuteDoStmt(), ExecuteGrantStmt(), executeItemOptUnwrapTarget(), executeItemUnwrapTargetArray(), ExecuteQuery(), ExecWindowAgg(), ExecWithCheckOptions(), expand_all_col_privileges(), expand_col_privileges(), expand_function_arguments(), expand_indexqual_rowcompare(), expand_insert_targetlist(), expand_partitioned_rtentry(), expand_vacuum_rel(), expanded_record_set_field_internal(), expandRecordVariable(), expandRTE(), expandTableLikeClause(), explain_get_index_name(), ExplainExecuteQuery(), ExplainOneUtility(), exprCollation(), expression_tree_mutator_impl(), expression_tree_walker_impl(), exprSetCollation(), exprType(), exprTypmod(), extension_config_remove(), extract_jsp_bool_expr(), FastPathGetRelationLockEntry(), fetch_att(), fetch_finfo_record(), fetch_fp_info(), fetch_function_defaults(), fetch_remote_table_info(), fetch_statentries_for_relation(), FileAccess(), FileClose(), fileGetOptions(), FilePrefetch(), FileRead(), FileSize(), FileSync(), FileTruncate(), FileWrite(), FileWriteback(), fill_seq_fork_with_data(), FillPortalStore(), fillRelOptions(), fillTypeDesc(), finalize_plan(), find_appinfos_by_relids(), find_base_rel(), find_base_rel_ignore_join(), find_coercion_pathway(), find_expr_references_walker(), find_in_dynamic_libpath(), find_indexpath_quals(), find_inheritance_children_extended(), find_join_domain(), find_join_input_rel(), find_jointree_node_for_rel(), find_nonnullable_rels_walker(), find_nonnullable_vars_walker(), find_or_make_matching_shared_tupledesc(), find_param_referent(), find_placeholder_info(), find_placeholders_recurse(), find_recursive_union(), find_window_functions_walker(), findDependentObjects(), findFkeyCast(), findoprnd(), findoprnd_recurse(), finish_heap_swap(), FinishSortSupportFunction(), fireASTriggers(), fireBSTriggers(), fix_indexqual_clause(), fix_indexqual_operand(), fix_join_expr_mutator(), fix_param_node(), fix_upper_expr_mutator(), fix_windowagg_condition_expr_mutator(), fixup_inherited_columns(), fixup_whole_row_references(), flatten_reloptions(), flatten_set_variable_args(), flattenJsonPathParseItem(), fmgr_c_validator(), fmgr_info_C_lang(), fmgr_info_cxt_security(), fmgr_info_other_lang(), fmgr_internal_validator(), fmgr_security_definer(), fmgr_sql(), fmgr_sql_validator(), fmgr_symbol(), foreign_join_ok(), forget_invalid_pages(), forget_invalid_pages_db(), ForgetPortalSnapshots(), format_operator_parts(), format_procedure_parts(), format_type_extended(), FormIndexDatum(), FormPartitionKeyDatum(), ForwardSyncRequest(), free_stmt(), FreeDesc(), FreeDir(), FreeFile(), FreePageManagerPutInternal(), FreeVfd(), fsm_search_avail(), fsm_space_needed_to_cat(), func_get_detail(), func_parallel(), func_strict(), func_volatile(), FuncnameGetCandidates(), function_inlinable(), function_selectivity(), FunctionCall0Coll(), FunctionCall1Coll(), FunctionCall2Coll(), FunctionCall3Coll(), FunctionCall4Coll(), FunctionCall5Coll(), FunctionCall6Coll(), FunctionCall7Coll(), FunctionCall8Coll(), FunctionCall9Coll(), FunctionIsVisible(), g_cube_distance(), g_int_compress(), g_int_picksplit(), gbt_num_distance(), gc_qtexts(), gen_prune_steps_from_opexps(), generate_collation_name(), generate_function_name(), generate_nonunion_paths(), generate_operator_clause(), generate_operator_name(), generate_partition_qual(), generate_qualified_relation_name(), generate_qualified_type_name(), generate_recursion_path(), generate_relation_name(), generateClonedExtStatsStmt(), generateClonedIndexStmt(), GenerationFree(), GenerationRealloc(), GenericXLogRegisterBuffer(), geqo(), get_actual_variable_endpoint(), get_agg_combine_expr(), get_altertable_subcmdinfo(), get_am_type_string(), get_attgenerated(), get_attname(), get_attoptions(), get_attstatsslot(), get_attstattarget(), get_atttypetypmodcoll(), get_collation(), get_collation_isdeterministic(), get_columns_length(), get_config_unit_name(), get_controlfile(), get_crosstab_tuplestore(), get_eclass_for_sort_expr(), get_explain_guc_options(), get_from_clause_item(), get_func_arg_info(), get_func_input_arg_names(), get_func_leakproof(), get_func_nargs(), get_func_prokind(), get_func_result_name(), get_func_retset(), get_func_rettype(), get_func_signature(), get_func_trftypes(), get_func_variadictype(), get_function_rows(), get_index_isclustered(), get_index_isvalid(), get_indexpath_pages(), get_insert_query_def(), get_join_variables(), get_jointype_name(), get_language_name(), get_last_relevant_decnum(), get_matching_list_bounds(), get_matching_location(), get_matching_partitions(), get_matching_range_bounds(), get_merged_range_bounds(), get_multirange_io_data(), get_mxact_status_for_lock(), get_name_for_var_field(), get_object_address(), get_object_address_opcf(), get_object_address_opf_member(), get_object_address_relobject(), get_object_address_unqualified(), get_object_namespace(), get_op_opfamily_properties(), get_opclass(), get_opclass_family(), get_opclass_input_type(), get_opclass_name(), get_partition_for_tuple(), get_partition_operator(), get_partition_parent(), get_perl_array_ref(), get_policies_for_relation(), get_primary_key_attnos(), get_publication_name(), get_qual_for_range(), get_query_def(), get_range_io_data(), get_range_key_properties(), get_range_nulltest(), get_rel_persistence(), get_relation_by_qualified_name(), get_relation_column_alias_ids(), get_relation_constraint_attnos(), get_relation_name(), get_relation_statistics(), get_relids_for_join(), get_relids_in_jointree(), get_remote_estimate(), get_ri_constraint_root(), get_rolespec_oid(), get_rolespec_tuple(), get_rte_attribute_is_dropped(), get_rte_attribute_name(), get_rule_expr(), get_segment_by_index(), get_select_query_def(), get_setop_query(), get_sortgroupref_clause(), get_sortgroupref_tle(), get_sublink_expr(), get_subscription_name(), get_sync_bit(), get_ts_parser_func(), get_ts_template_func(), get_tuple_of_interest(), get_typdefault(), get_type_category_preferred(), get_type_io_data(), get_typlenbyval(), get_typlenbyvalalign(), get_utility_query_def(), get_val(), get_variable(), get_view_query(), get_windowfunc_expr(), GetAccessStrategy(), GetAttributeByName(), GetAttributeByNum(), getBaseTypeAndTypmod(), GetBTPageStatistics(), GetCachedPlan(), GetCCHashEqFuncs(), GetCommandLogLevel(), GetCompressionMethodName(), GetConnection(), getConstraintTypeDescription(), GetCTEForRTE(), GetEpochTime(), GetFdwRoutine(), GetFdwRoutineByServerId(), GetForeignColumnOptions(), GetForeignDataWrapperExtended(), GetForeignKeyActionTriggers(), GetForeignKeyCheckTriggers(), GetForeignServerExtended(), GetForeignServerIdByRelId(), GetForeignTable(), getIdentitySequence(), GetIndexAmRoutine(), GetIndexAmRoutineByAmId(), GetIndexInputType(), getInsertSelectQuery(), getIthJsonbValueFromContainer(), getJsonPathItem(), GetLatestSnapshot(), getlen(), GetLockConflicts(), GetNamedLWLockTranche(), GetNewMultiXactId(), GetNewObjectId(), GetNewRelFileNumber(), GetNewTransactionId(), getNextFlagFromString(), GetNSItemByRangeTablePosn(), getObjectClass(), getObjectDescription(), getObjectIdentityParts(), getOpFamilyDescription(), getOpFamilyIdentity(), getProcedureTypeDescription(), GetPublication(), getPublicationSchemaInfo(), getQuadrant(), getRelationDescription(), getRelationIdentity(), getRelationTypeDescription(), getRTEPermissionInfo(), GetSerializableTransactionSnapshotInt(), GetSharedMemName(), GetSubscription(), GetSysCacheHashValue(), GetTableAmRoutine(), gettoken_tsvector(), getTokenTypes(), GetTransactionSnapshot(), GetTSConfigTuple(), getTSCurrentConfig(), GetTsmRoutine(), GetTupleForTrigger(), gettype(), getTypeBinaryInputInfo(), getTypeBinaryOutputInfo(), getTypeInputInfo(), getTypeOutputInfo(), GetXLogBuffer(), ghstore_consistent(), gimme_gene(), gin_btree_compare_prefix(), gin_btree_extract_query(), gin_consistent_hstore(), gin_consistent_jsonb(), gin_consistent_jsonb_path(), gin_extract_hstore_query(), gin_extract_jsonb_path(), gin_extract_jsonb_query(), gin_extract_jsonb_query_path(), gin_extract_query_trgm(), gin_extract_trgm(), gin_extract_tsquery_5args(), gin_extract_tsvector_2args(), gin_leafpage_items(), gin_metapage_info(), gin_page_opaque_info(), gin_redo(), gin_trgm_consistent(), gin_trgm_triconsistent(), gin_triconsistent_jsonb(), gin_triconsistent_jsonb_path(), gin_tsquery_consistent_6args(), ginarrayconsistent(), ginarrayextract_2args(), ginarraytriconsistent(), ginbuild(), gincost_pattern(), gincostestimate(), ginEntryFillRoot(), ginFindParents(), ginFinishSplit(), ginHeapTupleFastCollect(), ginHeapTupleFastInsert(), ginint4_consistent(), ginint4_queryextract(), ginPlaceToPage(), ginqueryarrayextract(), ginReadTuple(), ginRedoInsertEntry(), ginRedoInsertListPage(), ginRedoRecompress(), ginRedoSplit(), ginRedoUpdateMetapage(), ginRedoVacuumPage(), ginStepRight(), ginVacuumEntryPage(), ginVacuumPostingTreeLeaf(), ginvalidate(), gist_bbox_distance(), gist_box_leaf_consistent(), gist_indexsortbuild_flush_ready_pages(), gist_indexsortbuild_levelstate_flush(), gist_page_items(), gist_page_items_bytea(), gist_page_opaque_info(), gist_point_consistent(), gist_point_consistent_internal(), gist_point_distance(), gist_redo(), gistBufferingFindCorrectParent(), gistbufferinginserttuples(), gistbuild(), gistEmptyAllBuffers(), gistfillbuffer(), gistFindPath(), gistGetParent(), gistgettuple(), gistindex_keytest(), gistInitBuffering(), gistplacetopage(), gistRedoPageUpdateRecord(), gistrescan(), gistvalidate(), grow_memtuples(), gtrgm_consistent(), gtrgm_distance(), HandleParallelApplyMessage(), HandleParallelMessage(), has_dangerous_join_using(), has_row_triggers(), has_subclass(), hash_bitmap_info(), hash_corrupted(), hash_create(), hash_freeze(), hash_metapage_info(), hash_ok_operator(), hash_page_items(), hash_page_stats(), hash_redo(), hash_search_with_hash_value(), hash_update_hash_key(), hash_xlog_insert(), hash_xlog_move_page_contents(), hash_xlog_split_page(), hash_xlog_squeeze_page(), hashbpchar(), hashbpcharextended(), hashbuild(), hashtext(), hashtextextended(), hashvalidate(), heap2_decode(), heap2_redo(), heap_abort_speculative(), heap_attisnull(), heap_create_with_catalog(), heap_decode(), heap_drop_with_catalog(), heap_fetch_toast_slice(), heap_finish_speculative(), heap_getnext(), heap_getsysattr(), heap_inplace_update(), heap_lock_tuple(), heap_lock_updated_tuple_rec(), heap_modify_tuple_by_cols(), heap_page_is_all_visible(), heap_page_items(), heap_prune_chain(), heap_redo(), heap_tuple_infomask_flags(), heap_xlog_confirm(), heap_xlog_delete(), heap_xlog_inplace(), heap_xlog_insert(), heap_xlog_lock(), heap_xlog_lock_updated(), heap_xlog_multi_insert(), heap_xlog_update(), heapam_index_build_range_scan(), heapam_relation_copy_for_cluster(), heapam_scan_analyze_next_tuple(), HeapCheckForSerializableConflictOut(), hexval(), hide_coercion_node(), HoldPinnedPortals(), hstoreUpgrade(), hypothetical_check_argtypes(), hypothetical_dense_rank_final(), hypothetical_rank_common(), identify_join_columns(), identify_opfamily_groups(), if(), ImportForeignSchema(), ImportSnapshot(), inclusion_get_strategy_procinfo(), IncrementVarSublevelsUp_walker(), index_build(), index_check_primary_key(), index_concurrently_create_copy(), index_concurrently_swap(), index_constraint_create(), index_create(), index_drop(), index_get_partition(), index_getprocinfo(), index_other_operands_eval_cost(), index_set_state_flags(), index_store_float8_orderby_distances(), index_strategy_get_limit(), index_update_stats(), IndexGetRelation(), IndexNextWithReorder(), IndexOnlyNext(), IndexOnlyRecheck(), IndexSetParentIndex(), IndexSupportInitialize(), IndexSupportsBackwardScan(), inet_gist_consistent(), inet_opr_codenum(), inet_to_cidr(), infix(), init_custom_variable(), init_locale(), init_MultiFuncCall(), init_params(), init_sql_fcache(), init_toast_snapshot(), InitAuxiliaryProcess(), initBloomState(), InitCatalogCache(), initGinState(), initGISTstate(), initHyperLogLog(), initial_cost_mergejoin(), initialize_peragg(), initialize_worker_spi(), InitializeBackupManifest(), InitializeLatchSupport(), InitializeMaxBackends(), InitializeOneGUCOption(), InitLatch(), InitLocalBuffers(), InitMaterializedSRF(), InitPlan(), InitPostgres(), InitPostmasterChild(), InitProcess(), InitSharedLatch(), InitStandaloneProcess(), inittapes(), inline_function(), inline_set_returning_function(), InputFunctionCall(), InputFunctionCallSafe(), Insert(), insert_timeout(), insert_username(), InsertOneNull(), InsertOneTuple(), InsertOneValue(), InstrEndLoop(), InstrStartNode(), InstrStopNode(), int2_accum_inv(), int2_avg_accum(), int2_avg_accum_inv(), int2int4_sum(), int4_accum_inv(), int4_avg_accum(), int4_avg_accum_inv(), int4_avg_combine(), int8_accum_inv(), int8_avg(), int8_avg_accum_inv(), int8_avg_combine(), int8_avg_deserialize(), int8_avg_serialize(), int_query_opr_selec(), internal_get_result_type(), InternalIpcMemoryCreate(), interpret_func_volatility(), interval_accum(), interval_accum_inv(), interval_avg(), interval_combine(), interval_in(), intervaltypmodleastfield(), intervaltypmodout(), intset_add_member(), intset_update_upper(), inv_getsize(), inv_read(), inv_truncate(), inv_write(), InvalidateAttoptCacheCallback(), InvalidateBuffer(), InvalidateOprCacheCallBack(), InvalidateShippableCacheCallback(), InvalidateTableSpaceCacheCallback(), IpcMemoryDelete(), IpcMemoryDetach(), IpcSemaphoreKill(), irbt_combine(), is_simple_subquery(), is_simple_union_all(), is_simple_union_all_recurse(), isCurrentGroup(), issue_xlog_fsync(), iteratorFromContainer(), join_search_one_level(), join_selectivity(), jointree_contains_lateral_outer_refs(), json_agg_transfn(), json_errdetail(), json_errsave_error(), json_object_agg_transfn(), json_typeof(), jsonb_agg_transfn(), jsonb_get_element(), jsonb_hash(), jsonb_hash_extended(), jsonb_in_scalar(), jsonb_object_agg_transfn(), jsonb_put_escaped_value(), jsonb_recv(), Jsonb_to_SV(), JsonbContainerTypeName(), JsonbDeepContains(), JsonbHashScalarValue(), JsonbHashScalarValueExtended(), JsonbIteratorNext(), JsonbToCStringWorker(), JsonbType(), JsonbTypeName(), JsonbValue_to_SV(), JsonbValueAsText(), JsonEncodeDateTime(), jsonpath_recv(), jspInitByBuffer(), jspOperationName(), KnownAssignedXidsAdd(), KnownAssignedXidsDisplay(), KnownAssignedXidsRemove(), KnownAssignedXidsRemovePreceding(), lazy_scan_heap(), lazy_scan_noprune(), lazy_scan_prune(), lc_collate_is_c(), leader_takeover_tapes(), llvm_build_inline_plan(), llvm_compile_module(), llvm_create_types(), llvm_execute_inline_plan(), llvm_get_function(), llvm_load_summary(), llvm_pg_func(), llvm_pg_var_type(), llvm_resolve_symbol(), llvm_session_initialize(), lo_manage(), load_categories_hash(), load_critical_index(), load_domaintype_info(), load_module(), load_multirangetype_info(), load_rangetype_info(), load_relcache_init_file(), load_return_type(), load_typcache_tupdesc(), LoadOutputPlugin(), LocalBufferAlloc(), LocalExecuteInvalidationMessage(), LocalToUtf(), lock_twophase_postcommit(), lock_twophase_recover(), lock_twophase_standby_recover(), LockAcquireExtended(), LockBuffer(), LockBufferForCleanup(), LockCheckConflicts(), LockHasWaiters(), LockRefindAndRelease(), LockRelease(), LockReleaseAll(), LockReleaseSession(), LockWaiterCount(), log_invalid_page(), LogCurrentRunningXacts(), logical_heap_rewrite_flush_mappings(), LogicalConfirmReceivedLocation(), LogicalIncreaseRestartDecodingForSlot(), LogicalIncreaseXminForSlot(), logicalmsg_decode(), logicalmsg_redo(), LogicalOutputWrite(), LogicalParallelApplyLoop(), logicalrep_message_type(), logicalrep_read_begin(), logicalrep_read_begin_prepare(), logicalrep_read_commit(), logicalrep_read_commit_prepared(), logicalrep_read_delete(), logicalrep_read_insert(), logicalrep_read_prepare_common(), logicalrep_read_rollback_prepared(), logicalrep_read_stream_commit(), logicalrep_read_tuple(), logicalrep_read_update(), logicalrep_rel_open(), logicalrep_worker_launch(), logicalrep_write_namespace(), logicalrep_write_tuple(), logicalrep_write_typ(), LogicalRepSyncTableStart(), LogicalTapeBackspace(), LogicalTapeCreate(), LogicalTapeSeek(), LogicalTapeWrite(), lookup_am_handler_func(), lookup_collation_cache(), lookup_ts_config_cache(), lookup_ts_dictionary_cache(), lookup_ts_parser_cache(), LookupBackgroundWorkerFunction(), LookupOpclassInfo(), LookupParallelWorkerFunction(), LookupTypeNameExtended(), lquery_recv(), LruDelete(), LruInsert(), ltree_consistent(), ltree_recv(), ltxtq_recv(), LWLockAcquire(), LWLockAcquireOrWait(), LWLockConditionalAcquire(), LWLockQueueSelf(), LWLockRelease(), lz4_compress_datum(), macaddr_abbrev_abort(), MaintainOldSnapshotTimeMapping(), make_absolute_path(), make_callstmt_target(), make_canonical_pathkey(), make_const(), make_inh_translation_list(), make_inner_pathkeys_for_merge(), make_new_connection(), make_new_heap(), make_one_partition_rbound(), make_pathkey_from_sortinfo(), make_pathkey_from_sortop(), make_range(), make_rel_from_joinlist(), make_result_opt_error(), make_ruledef(), make_scalar_key(), make_sort_from_groupcols(), make_tsvector(), make_tuple_from_result_row(), make_unique_from_pathkeys(), makeBoolAggState(), makeNumericAggState(), makepol(), makeStringAggState(), MakeTidOpExpr(), MakeTransitionCaptureState(), map_sql_table_to_xmlschema(), map_sql_type_to_xml_name(), map_variable_attnos_mutator(), mark_index_clustered(), MarkBufferDirty(), MarkBufferDirtyHint(), markQueryForLocking(), markRelsAsNulledBy(), markRTEForSelectPriv(), markTargetListOrigin(), mask_unused_space(), match_clause_to_partition_key(), match_index_to_operand(), match_network_subset(), match_unsorted_outer(), materializeResult(), max_parallel_hazard_test(), maybe_reread_subscription(), mbms_add_member(), mbms_is_member(), mcelem_array_selec(), mcv_get_match_bitmap(), mcv_match_expression(), mdnblocks(), MemoryContextAlloc(), MemoryContextAllocExtended(), MemoryContextAllocHuge(), MemoryContextAllocZero(), MemoryContextAllocZeroAligned(), MergeAttributes(), mergeruns(), MergeWithExistingConstraint(), minmax_get_strategy_procinfo(), minmax_multi_get_strategy_procinfo(), MJExamineQuals(), mock_scram_secret(), moddatetime(), ModifyWaitEvent(), movedb(), moveLeafs(), mq_putmessage_noblock(), MultiExecBitmapAnd(), MultiExecBitmapOr(), MultiExecProcNode(), multirange_agg_transfn(), multirange_cmp(), multirange_constructor0(), multirange_constructor1(), multirange_constructor2(), multirange_eq_internal(), multirange_get_typcache(), multirange_in(), multirange_intersect_agg_transfn(), multixact_redo(), MultiXactIdCreateFromMembers(), mxstatus_to_string(), NameListToString(), NamespaceCreate(), ndistinct_for_combination(), negate_clause(), network_abbrev_abort(), networkjoinsel(), nextval_internal(), nodeRead(), NotifyMyFrontEnd(), nulltestsel(), NUM_cache_getnew(), NUM_numpart_from_char(), NUM_numpart_to_char(), NUM_processor(), numeric_abbrev_abort(), numeric_accum_inv(), numeric_avg_combine(), numeric_avg_deserialize(), numeric_avg_serialize(), numeric_combine(), numeric_deserialize(), numeric_poly_combine(), numeric_poly_deserialize(), numeric_poly_serialize(), numeric_serialize(), objectNamesToOids(), ObjectsInPublicationToOids(), objectsInSchemaToOids(), oidparse(), op_input_types(), op_strict(), op_volatile(), OpClassCacheLookup(), OpclassIsVisible(), OpenPipeStream(), OpenTemporaryFileInTablespace(), OpenTransientFilePerm(), operator_predicate_proof(), OperatorCreate(), OperatorIsVisible(), OpFamilyCacheLookup(), OpfamilyIsVisible(), ordered_set_startup(), outNode(), OutputPluginPrepareWrite(), OutputPluginWrite(), OwnLatch(), pa_allocate_worker(), pa_decr_and_wait_stream_block(), pa_free_worker(), pa_start_subtrans(), pa_stream_abort(), page_header(), PageAddItemExtended(), PageIndexMultiDelete(), PageIndexTupleDelete(), PageIndexTupleDeleteNoCompact(), PageIndexTupleOverwrite(), palloc(), palloc0(), palloc_extended(), parallel_vacuum_main(), parallel_vacuum_process_all_indexes(), parallel_vacuum_process_one_index(), parse_affentry(), parse_format(), parse_func_options(), parse_hstore(), parse_jsonb_index_flags(), parse_lquery(), parse_ltree(), parse_one_reloption(), parse_ooaffentry(), parse_output_parameters(), parse_policy_command(), parse_tsquery(), parseCreateReplSlotOptions(), ParseFuncOrColumn(), parseNodeString(), PartitionHasPendingDetach(), PathNameOpenFilePerm(), pattern_fixed_prefix(), patternsel(), percentile_cont_final_common(), percentile_cont_multi_final_common(), percentile_disc_final(), percentile_disc_multi_final(), perform_pruning_base_step(), perform_pruning_combine_step(), perform_work_item(), PerformCursorOpen(), PerformMembersTruncation(), PerformWalRecovery(), PersistHoldablePortal(), pg_aclmask(), pg_armor(), pg_backup_stop(), pg_buffercache_pages(), pg_buffercache_summary(), pg_collation_actual_version(), pg_column_compression(), pg_column_size(), pg_control_checkpoint(), pg_control_init(), pg_control_recovery(), pg_control_system(), pg_crc32c_armv8_available(), pg_create_logical_replication_slot(), pg_create_physical_replication_slot(), pg_current_logfile(), pg_current_snapshot(), pg_database_collation_actual_version(), pg_do_encoding_conversion(), pg_event_trigger_ddl_commands(), pg_extension_config_dump(), pg_get_catalog_foreign_keys(), pg_get_constraintdef_worker(), pg_get_functiondef(), pg_get_indexdef_worker(), pg_get_keywords(), pg_get_multixact_members(), pg_get_object_address(), pg_get_partkeydef_worker(), pg_get_ruledef_worker(), pg_get_statisticsobj_worker(), pg_get_triggerdef_worker(), pg_get_viewdef_worker(), pg_get_wal_record_info(), pg_GSS_error_int(), pg_identify_object(), pg_identify_object_as_address(), pg_import_system_collations(), pg_isolation_test_session_is_blocked(), pg_last_committed_xact(), pg_logical_replication_slot_advance(), pg_logical_slot_get_changes_guts(), pg_newlocale_from_collation(), pg_old_snapshot_time_mapping(), pg_parse_query(), pg_partition_tree(), pg_perm_setlocale(), pg_plan_query(), pg_relation_filepath(), pg_replication_origin_create(), pg_replication_slot_advance(), pg_rewrite_query(), pg_sequence_parameters(), pg_split_walfile_name(), pg_stat_get_wal_receiver(), pg_stat_statements_info(), pg_stat_statements_internal(), pg_timezone_abbrevs(), pg_type_aclmask(), pg_tzset(), pg_visibility_map_summary(), pg_xact_commit_timestamp_origin(), pgfdw_inval_callback(), pgfdw_reset_xact_state(), pgfdw_subxact_callback(), pgfdw_xact_callback(), PGLC_localeconv(), pgoutput_change(), pgoutput_commit_txn(), pgoutput_row_filter(), pgoutput_row_filter_exec_expr(), pgp_armor_decode(), pgp_armor_encode(), pgp_armor_headers(), pgp_extract_armor_headers(), PGReserveSemaphores(), PGSemaphoreCreate(), PGSemaphoreLock(), PGSemaphoreReset(), PGSemaphoreTryLock(), PGSemaphoreUnlock(), PGSharedMemoryCreate(), PGSharedMemoryDetach(), PGSharedMemoryIsInUse(), PGSharedMemoryReAttach(), pgstat_discard_stats(), pgstat_drop_entry_internal(), pgstat_read_statsfile(), pgstat_release_entry_ref(), pgstat_replslot_to_serialized_name_cb(), pgstat_write_statsfile(), pgstatginindex_internal(), pgstathashindex(), pgstatindex_impl(), pgstattuple_approx_internal(), pgwin32_ReserveSharedMemoryRegion(), pgwin32_select(), pgxml_result_to_text(), PinPortal(), plperl_event_trigger_handler(), plperl_fini(), plperl_func_handler(), plperl_init_interp(), plperl_inline_handler(), plperl_return_next_internal(), plperl_spi_exec_prepared(), plperl_spi_freeplan(), plperl_spi_prepare(), plperl_spi_query(), plperl_spi_query_prepared(), plperl_trigger_handler(), plperl_util_elog(), plperl_validator(), plpgsql_build_datatype(), plpgsql_build_variable(), plpgsql_call_handler(), plpgsql_compile(), plpgsql_compile_inline(), plpgsql_exec_function(), plpgsql_exec_get_datum_type(), plpgsql_exec_get_datum_type_info(), plpgsql_exec_trigger(), plpgsql_free_function_memory(), plpgsql_fulfill_promise(), plpgsql_HashTableDelete(), plpgsql_HashTableInsert(), plpgsql_inline_handler(), plpgsql_parse_cwordtype(), plpgsql_parse_word(), plpgsql_validator(), plpython3_call_handler(), plpython3_inline_handler(), plpython3_validator(), plsample_func_handler(), plsample_trigger_handler(), pltcl_build_tuple_result(), pltcl_event_trigger_handler(), pltcl_func_handler(), pltcl_init_interp(), pltcl_returnnext(), pltcl_SPI_prepare(), pltcl_trigger_handler(), PLy_current_execution_context(), PLy_cursor_init_type(), PLy_cursor_plan(), PLy_cursor_query(), PLy_exception_set_with_details(), PLy_exec_function(), PLy_exec_trigger(), PLy_modify_tuple(), PLy_plan_init_type(), PLy_pop_execution_context(), PLy_procedure_compile(), PLy_procedure_create(), PLy_procedure_get(), PLy_procedure_munge_source(), PLy_result_init_type(), PLy_spi_exception_set(), PLy_spi_prepare(), PLy_subtransaction_init_type(), PLy_traceback(), PLy_trigger_build_args(), PLyObject_AsString(), PLyObject_FromJsonbContainer(), PLyObject_FromJsonbValue(), PopOverrideSearchPath(), PopTransaction(), populate_joinrel_with_paths(), populate_record_field(), populate_scalar(), PortalRun(), PortalRunFetch(), PosixSemaphoreCreate(), PosixSemaphoreKill(), postgresAnalyzeForeignTable(), postgresBeginForeignInsert(), postgresGetAnalyzeInfoForForeignTable(), postgresGetForeignJoinPaths(), postgresGetForeignUpperPaths(), postgresPlanDirectModify(), postgresPlanForeignModify(), PostmasterDeathSignalInit(), PostmasterIsAliveInternal(), PostPrepare_Locks(), postprocess_setop_tlist(), pq_getmsgint(), pq_parse_errornotice(), pq_sendint(), PreCommit_Notify(), PreCommit_Portals(), predicate_implied_by_recurse(), predicate_refuted_by_recurse(), prepare_column_cache(), prepare_sort_from_pathkeys(), PrepareInvalidationState(), preparePresortedCols(), PrepareRedoAdd(), PrepareRedoRemove(), PrepareSortSupportFromGistIndexRel(), PrepareSortSupportFromIndexRel(), PrepareSortSupportFromOrderingOp(), PrepareTransaction(), preprocess_aggref(), preprocess_minmax_aggregates(), preprocess_qual_conditions(), preprocess_targetlist(), PreventInTransactionBlock(), print_function_arguments(), PrintBufferLeakWarning(), PrintCatCacheLeakWarning(), PrintCatCacheListLeakWarning(), PrintCryptoHashLeakWarning(), PrintDSMLeakWarning(), PrintFileLeakWarning(), PrintHMACLeakWarning(), printJsonPathItem(), PrintPlanCacheLeakWarning(), PrintRelCacheLeakWarning(), printsimple(), PrintSnapshotLeakWarning(), PrintTupleDescLeakWarning(), privilege_to_string(), proc_exit(), proc_exit_prepare(), ProcArrayApplyRecoveryInfo(), ProcArraySetReplicationSlotXmin(), ProcedureCreate(), process_equivalence(), process_matched_tle(), process_subquery_nestloop_params(), ProcessCatchupInterrupt(), ProcessCommittedInvalidationMessages(), ProcessIncomingNotify(), processIndirection(), ProcessStandbyHSFeedbackMessage(), ProcessStandbyReplyMessage(), ProcessSyncRequests(), ProcessUtilitySlow(), ProcessWalSndrMessage(), ProcSendSignal(), ProcSignalInit(), provider_init(), prs_setup_firstcall(), prune_element_hashtable(), prune_lexemes_hashtable(), pull_up_sublinks_jointree_recurse(), pull_up_subqueries_recurse(), pull_up_union_leaf_queries(), pull_var_clause_walker(), pullup_replace_vars_callback(), push_back_token(), pushJsonbValueScalar(), pushOpStack(), pvsnprintf(), QTNodeCompare(), query_planner(), query_to_oid_list(), query_to_xml_and_xmlschema(), query_to_xmlschema(), querytree(), radius_add_attribute(), random_init_pool(), range_adjacent_internal(), range_after_internal(), range_agg_finalfn(), range_agg_transfn(), range_before_internal(), range_cmp(), range_contains_internal(), range_eq_internal(), range_get_typcache(), range_gist_consistent_int_element(), range_gist_consistent_int_multirange(), range_gist_consistent_int_range(), range_gist_consistent_leaf_element(), range_gist_consistent_leaf_multirange(), range_gist_consistent_leaf_range(), range_gist_penalty(), range_intersect(), range_intersect_agg_transfn(), range_minus(), range_minus_internal(), range_overlaps_internal(), range_overleft_internal(), range_overright_internal(), range_union_internal(), RangeVarCallbackForAlterRelation(), RangeVarCallbackForTruncate(), RangeVarCallbackOwnsRelation(), raw_expression_tree_walker_impl(), raw_heap_insert(), rbt_begin_iterate(), rbt_populate(), read_client_final_message(), read_gucstate(), read_gucstate_binary(), read_seq_tuple(), readDatum(), ReadTempFileBlock(), ReceiveFunctionCall(), ReceiveSharedInvalidMessages(), recheck_cast_function_args(), recomputeNamespacePath(), record_image_cmp(), recordExtObjInitPriv(), RecordKnownAssignedTransactionIds(), RecordTransactionAbort(), RecordTransactionAbortPrepared(), RecordTransactionCommit(), recovery_create_dbdir(), recoveryApplyDelay(), RecoveryConflictInterrupt(), RecoveryRestartPoint(), recurse_push_qual(), recurse_pushdown_safe(), recurse_set_operations(), recv_password_packet(), reduce_outer_joins(), reduce_outer_joins_pass1(), reduce_outer_joins_pass2(), refresh_by_match_merge(), refresh_matview_datafill(), regclassin(), regcollationin(), regconfigin(), regdictionaryin(), register_seq_scan(), RegisterExtensibleNodeEntry(), regnamespacein(), regoperatorin(), regoperin(), regprocedurein(), regprocin(), REGRESS_object_access_hook_str(), regress_setenv(), regrolein(), regtypein(), RehashCatCache(), reindex_index(), reindex_relation(), ReindexRelationConcurrently(), relation_mark_replica_identity(), relation_needs_vacanalyze(), relation_open(), RelationAddExtraBlocks(), RelationBuildDesc(), RelationBuildLocalRelation(), RelationBuildPartitionDesc(), RelationBuildPartitionKey(), RelationBuildPublicationDesc(), RelationBuildRowSecurity(), RelationBuildTriggers(), RelationBuildTupleDesc(), RelationCacheInitializePhase3(), RelationClearMissing(), RelationClearRelation(), RelationCreateStorage(), RelationFindReplTupleByIndex(), RelationFindReplTupleSeq(), RelationForgetRelation(), RelationGetBufferForTuple(), RelationGetExclusionInfo(), RelationGetIdentityKeyBitmap(), RelationGetIndexAttrBitmap(), relationHasPrimaryKey(), RelationInitIndexAccessInfo(), RelationInitPhysicalAddr(), RelationInitTableAccessMethod(), RelationIsVisible(), RelationMapRemoveMapping(), RelationMapUpdateMap(), RelationPutHeapTuple(), RelationReloadIndexInfo(), RelationSetNewRelfilenumber(), ReleaseBuffer(), ReleaseCurrentSubTransaction(), ReleaseLockIfHeld(), ReleaseLruFile(), ReleaseSavepoint(), RelfilenumberMapInvalidateCallback(), RelidByRelfilenumber(), relmap_redo(), RememberClusterOnForRebuilding(), RememberReplicaIdentityForRebuilding(), remove_rel_from_joinlist(), remove_timeout_index(), remove_useless_joins(), remove_useless_results_recurse(), RemoveAttrDefault(), RemoveAttrDefaultById(), RemoveAttributeById(), RemoveConstraintById(), removeExtObjInitPriv(), RemoveFunctionById(), RemoveGXact(), RemoveInheritance(), RemoveLocalLock(), RemoveNonParentXlogFiles(), RemoveOldXlogFiles(), RemoveOperatorById(), RemovePartitionKeyByRelId(), RemovePolicyById(), RemovePublicationById(), RemovePublicationRelById(), RemovePublicationSchemaById(), RemoveReindexPending(), RemoveRelations(), RemoveRewriteRuleById(), RemoveRoleFromObjectACL(), RemoveRoleFromObjectPolicy(), RemoveStatisticsById(), RemoveTempXlogFiles(), RemoveTriggerById(), RemoveTSConfigurationById(), RemoveTypeById(), RemoveUserMapping(), rename_constraint_internal(), RenameConstraint(), RenameConstraintById(), RenameDatabase(), RenameRelationInternal(), RenameRole(), RenameTableSpace(), RenameType(), RenameTypeInternal(), reorder_function_arguments(), ReorderBufferAbortOld(), ReorderBufferIterTXNNext(), ReorderBufferProcessTXN(), ReorderBufferSerializeTXN(), ReorderBufferToastAppendChunk(), ReorderBufferToastReplace(), repalloc(), repalloc0(), repalloc_extended(), replace_rte_variables(), replace_vars_in_jointree(), ReplaceVarsFromTargetList_callback(), replorigin_drop_by_name(), replorigin_redo(), replorigin_session_setup(), report_invalid_page(), report_name_conflict(), report_namespace_conflict(), ReportSlotConnectionError(), RequestAddinShmemSpace(), RequestCheckpoint(), RequestNamedLWLockTranche(), ResetRelRewrite(), ResetSequence(), ResetUnloggedRelations(), ResetUnloggedRelationsInDbspaceDir(), resolve_anyarray_from_others(), resolve_anyelement_from_others(), resolve_anymultirange_from_others(), resolve_anyrange_from_others(), resolve_column_ref(), resolve_special_varno(), ResourceOwnerForgetBuffer(), ResourceOwnerForgetCatCacheListRef(), ResourceOwnerForgetCatCacheRef(), ResourceOwnerForgetCryptoHash(), ResourceOwnerForgetDSM(), ResourceOwnerForgetFile(), ResourceOwnerForgetHMAC(), ResourceOwnerForgetJIT(), ResourceOwnerForgetLock(), ResourceOwnerForgetPlanCacheRef(), ResourceOwnerForgetRelationRef(), ResourceOwnerForgetSnapshot(), ResourceOwnerForgetTupleDesc(), RestoreComboCIDState(), RestoreRelationMap(), RestoreSlotFromDisk(), restrict_and_check_grant(), restriction_selectivity(), revmap_get_buffer(), RewriteQuery(), rewriteTargetListIU(), rewriteTargetView(), rewriteValuesRTE(), ri_Check_Pk_Match(), ri_FetchConstraintInfo(), RI_FKey_cascade_del(), RI_FKey_cascade_upd(), RI_FKey_check(), ri_GenerateQualCollation(), ri_HashCompareOp(), RI_Initial_Check(), ri_LoadConstraintInfo(), RI_PartitionRemove_Check(), ri_PerformCheck(), ri_PlanCheck(), ri_restrict(), ri_set(), roles_is_member_of(), RollbackAndReleaseCurrentSubTransaction(), RollbackToSavepoint(), RS_compile(), RS_execute(), RS_isRegis(), rtree_internal_consistent(), s_check_valid(), s_lock_free_sema(), s_lock_stuck(), SaveCachedPlan(), ScanPgRelation(), ScanSourceDatabasePgClassTuple(), schedule_alarm(), scram_build_secret(), scram_exchange(), scram_verify_plain_password(), SearchSysCacheList(), seg_cmp(), select_rowmark_type(), send_feedback(), SendBackupManifest(), sendDir(), sendFile(), sendFileWithContent(), sepgsql_attribute_post_create(), sepgsql_database_post_create(), sepgsql_fmgr_hook(), sepgsql_object_access(), sepgsql_proc_post_create(), sepgsql_proc_setattr(), sepgsql_relation_post_create(), sepgsql_relation_setattr(), sepgsql_relation_setattr_extra(), sepgsql_schema_post_create(), seq_redo(), sequence_options(), SerializeComboCIDState(), set_baserel_partition_key_exprs(), set_cheapest(), set_config_option_ext(), set_cte_pathlist(), set_join_references(), set_joinrel_partition_key_exprs(), set_max_safe_fds(), set_output_count(), set_plan_refs(), set_rel_pathlist(), set_rel_size(), set_using_names(), set_worktable_pathlist(), SetAttrMissing(), SetDatabaseEncoding(), SetDefaultACL(), SetMatViewPopulatedState(), SetNextObjectId(), setPath(), SetReindexPending(), SetReindexProcessing(), SetRelationHasSubclass(), SetRelationNumChecks(), SetRelationRuleStatus(), SetRelationTableSpace(), Setup_AF_UNIX(), setup_firstcall(), setup_simple_rel_arrays(), SetupLockInTable(), SharedInvalBackendInit(), SharedRecordTypmodRegistryInit(), shdepChangeDep(), shdepDropOwned(), shdepLockAndCheckObject(), shdepReassignOwned(), shell_archive_file(), shell_archive_shutdown(), shm_toc_lookup(), shmem_exit(), show_grouping_set_keys(), show_sort_group_keys(), show_sortorder_options(), SICleanupQueue(), signal_child(), SignalBackends(), simple_heap_delete(), simple_heap_update(), simple_table_tuple_delete(), simple_table_tuple_update(), simplify_function(), SlabAlloc(), SlabContextCreate(), SlabFree(), SlabRealloc(), slot_compile_deform(), slot_getsomeattrs_int(), SlruReportIOError(), SlruScanDirectory(), smgr_redo(), smgrclose(), SnapBuildAddCommittedTxn(), SnapBuildClearExportedSnapshot(), SnapBuildCommitTxn(), SnapBuildDistributeNewCatalogSnapshot(), SnapBuildExportSnapshot(), SnapBuildFreeSnapshot(), SnapBuildInitialSnapshot(), SnapBuildProcessNewCid(), SnapBuildProcessRunningXacts(), SnapBuildPurgeOlderTxn(), SnapBuildSerialize(), SnapBuildSnapDecRefcount(), SnapBuildWaitSnapshot(), spg_box_quad_get_scankey_bbox(), spg_box_quad_inner_consistent(), spg_box_quad_leaf_consistent(), spg_kd_choose(), spg_kd_inner_consistent(), spg_quad_inner_consistent(), spg_quad_leaf_consistent(), spg_range_quad_inner_consistent(), spg_range_quad_leaf_consistent(), spg_redo(), spg_text_inner_consistent(), spg_text_leaf_consistent(), spgAddNodeAction(), spgbuild(), spgdoinsert(), spgExtractNodeLabels(), spgFormInnerTuple(), spgGetCache(), spggettuple(), spgInnerTest(), spgist_name_inner_consistent(), spgist_name_leaf_consistent(), SpGistGetBuffer(), SpGistPageAddNewItem(), spgMatchNodeAction(), spgPageIndexMultiDelete(), spgprocesspending(), spgRedoAddLeaf(), spgRedoAddNode(), spgRedoSplitTuple(), spgSplitNodeAction(), spgTestLeafTuple(), spgUpdateNodeLink(), spgvalidate(), spgWalk(), SPI_connect_ext(), SPI_cursor_close(), SPI_cursor_open_internal(), SPI_cursor_open_with_args(), SPI_cursor_parse_open(), SPI_datumTransfer(), spi_dest_startup(), SPI_freetuptable(), SPI_palloc(), spi_printtup(), ss_get_location(), SS_process_ctes(), ss_report_location(), ssl_extension_info(), standard_ExecutorRun(), standard_ExecutorStart(), standard_join_search(), standby_decode(), standby_redo(), StandbyAcquireAccessExclusiveLock(), StandbyReleaseAllLocks(), StandbyReleaseXidEntryLocks(), StartBackgroundWorker(), StartSubTransaction(), StartTransactionCommand(), StartupReplicationOrigin(), StartupReplicationSlots(), statapprox_heap(), statext_dependencies_deserialize(), statext_dependencies_load(), statext_expressions_load(), statext_is_kind_built(), statext_mcv_deserialize(), statext_mcv_load(), statext_ndistinct_deserialize(), statext_ndistinct_load(), StatisticsGetRelation(), StatisticsObjIsVisible(), store_att_byval(), StoreAttrDefault(), StoreConstraints(), storeObjectDescription(), StorePartitionBound(), storeQueryResult(), storeRow(), StrategyGetBuffer(), stream_open_file(), string_agg_combine(), string_to_const(), stringify_adefprivs_objtype(), stringify_grant_objtype(), sts_initialize(), substitute_actual_parameters_mutator(), substitute_actual_srf_parameters_mutator(), SubTransGetTopmostTransaction(), summarize_range(), swap_relation_files(), SyncRepReleaseWaiters(), SysCacheGetAttr(), SysCacheInvalidate(), SysLoggerMain(), systable_beginscan(), systable_beginscan_ordered(), systable_getnext(), systable_getnext_ordered(), SystemAttributeDefinition(), table_index_fetch_tuple(), table_scan_bitmap_next_block(), table_scan_bitmap_next_tuple(), table_scan_getnextslot(), table_scan_sample_next_block(), table_scan_sample_next_tuple(), table_tuple_fetch_row_version(), table_tuple_get_latest_tid(), tblspc_redo(), tbm_add_tuples(), tbm_intersect(), test_atomic_uint32(), test_atomic_uint64(), test_bloomfilter(), test_empty(), test_enc_conversion(), test_fdw_handler(), test_huge_distances(), test_itemptr_pair(), test_lfind32(), test_lfind8_internal(), test_lfind8_le_internal(), test_pattern(), test_predtest(), test_rb_tree(), test_shm_mq_main(), test_single_value(), test_single_value_and_filler(), test_slru_page_delete(), test_slru_page_sync(), test_slru_scan_cb(), test_spinlock(), testcustomrmgrs_redo(), testdelete(), testfind(), testfindltgt(), testleftmost(), testleftright(), testrightleft(), text_format(), text_substring(), thesaurus_lexize(), thesaurusRead(), TidExprListCreate(), timestamp_in(), timestamptz_in(), tliOfPointInHistory(), toast_compress_datum(), toast_decompress_datum(), toast_decompress_datum_slice(), toast_fetch_datum(), toast_fetch_datum_slice(), toast_open_indexes(), TransactionBlockStatusCode(), TransactionIdDidAbort(), TransactionIdDidCommit(), transformAExprBetween(), transformAlterTableStmt(), transformBooleanTest(), transformBoolExpr(), transformCallStmt(), transformColumnDefinition(), transformConstraintAttrs(), transformCreateSchemaStmt(), transformCreateStmt(), transformDeclareCursorStmt(), transformExprRecurse(), transformFkeyCheckAttrs(), transformFkeyGetPrimaryKey(), transformFromClauseItem(), transformGenericOptions(), transformInsertStmt(), transformLockingClause(), transformMergeStmt(), transformMultiAssignRef(), transformPartitionBound(), transformPartitionBoundValue(), transformPartitionCmd(), transformPLAssignStmt(), transformRangeSubselect(), transformRuleStmt(), transformSubLink(), transformTableConstraint(), transformUpdateTargetList(), transformWindowDefinitions(), translate_col_privs_multilevel(), trigger_return_old(), triggered_change_notification(), TriggerSetParentTrigger(), TruncateMultiXact(), try_partitionwise_join(), try_relation_open(), tryAttachPartitionForeignKey(), TryReuseForeignKey(), TS_execute_locations_recurse(), TS_execute_recurse(), TS_phrase_execute(), ts_setup_firstcall(), ts_stat_sql(), TSConfigIsVisible(), TSDictionaryIsVisible(), TSParserIsVisible(), tsquery_opr_selec(), tsquery_requires_match(), tsquery_rewrite_query(), tsqueryrecv(), tsquerysend(), TSTemplateIsVisible(), tsvector_setweight(), tsvector_setweight_by_filter(), tsvector_unnest(), tsvector_update_trigger(), tsvectorin(), tsvectorrecv(), tt_setup_firstcall(), ttdummy(), tts_virtual_getsomeattrs(), TupleDescInitBuiltinEntry(), TupleDescInitEntry(), tuplesort_begin_batch(), tuplesort_begin_cluster(), tuplesort_begin_common(), tuplesort_begin_datum(), tuplesort_begin_heap(), tuplesort_begin_index_btree(), tuplesort_begin_index_gist(), tuplesort_begin_index_hash(), tuplesort_free(), tuplesort_gettuple_common(), tuplesort_markpos(), tuplesort_performsort(), tuplesort_puttuple_common(), tuplesort_rescan(), tuplesort_restorepos(), tuplesort_skiptuples(), tuplestore_alloc_read_pointer(), tuplestore_copy_read_pointer(), tuplestore_gettuple(), tuplestore_puttuple_common(), tuplestore_rescan(), tuplestore_select_read_pointer(), tuplestore_set_eflags(), TwoPhaseGetGXact(), TypeCreate(), TypeGetTupleDesc(), typeidType(), typeidTypeRelid(), typeIsOfTypedTable(), TypeIsVisible(), typeOrDomainTypeRelid(), typeTypeId(), unify_hypothetical_args(), UnpinPortal(), update_default_partition_oid(), update_frameheadpos(), update_frametailpos(), update_relispartition(), UpdateActiveSnapshotCommandId(), UpdateDecodingStats(), UpdateLogicalMappings(), UpdateMinRecoveryPoint(), UpdateSharedMemoryConfig(), UpdateSubscriptionRelState(), UpdateTwoPhaseState(), UserAbortTransactionBlock(), UtfToLocal(), uuid_abbrev_abort(), uuid_generate_internal(), vac_update_datfrozenxid(), vac_update_relstats(), vacuumLeafPage(), vacuumLeafRoot(), validate_index(), validatePartitionedIndex(), varstr_abbrev_abort(), varstr_cmp(), varstrfastcmp_locale(), verify_client_proof(), verify_dictoptions(), verify_hash_page(), verifyBackupPageConsistency(), view_has_instead_trigger(), visibilitymap_clear(), visibilitymap_get_status(), visibilitymap_prepare_truncate(), visibilitymap_set(), wait_pid(), WaitForProcSignalBarrier(), WaitForWALToBecomeAvailable(), WaitXLogInsertionsToFinish(), WalRcvWaitForStartPosition(), WalReceiverMain(), WalSndKeepalive(), wchar2char(), window_gettupleslot(), WinGetFuncArgInFrame(), WinGetFuncArgInPartition(), WinRowsArePeers(), WinSetMarkPosition(), write_item(), write_relcache_init_file(), write_relmap_file(), writeListPage(), WriteTempFileBlock(), X509_NAME_to_cstring(), xact_decode(), xact_redo(), XidCacheRemoveRunningXids(), xlog_decode(), xlog_redo(), XLogBackgroundFlush(), XLogBeginInsert(), XLogCheckInvalidPages(), XLogCompressBackupBlock(), XLogEnsureRecordSpace(), XLogFileCopy(), XLogFileInitInternal(), XLogFileRead(), XLogFileReadAnyTLI(), XLogFlush(), XLogInsert(), XLogInsertRecord(), XLogPrefetcherIsFiltered(), XLogPrefetcherNextBlock(), XLogReadBufferForRedoExtended(), XLogReadDetermineTimeline(), XLogRecGetBlockTag(), XLogRecordAssemble(), xlogrecovery_redo(), XLogRegisterBlock(), XLogRegisterBufData(), XLogRegisterBuffer(), XLogRegisterData(), XLogSendLogical(), XLogSendPhysical(), XLogWalRcvSendHSFeedback(), XLogWalRcvSendReply(), XLogWrite(), XmlTableGetValue(), and xpath_table().

◆ escape_param_str()

static char * escape_param_str ( const char *  str)
static

Definition at line 2828 of file dblink.c.

2829 {
2830  const char *cp;
2832 
2833  initStringInfo(&buf);
2834 
2835  for (cp = str; *cp; cp++)
2836  {
2837  if (*cp == '\\' || *cp == '\'')
2838  appendStringInfoChar(&buf, '\\');
2839  appendStringInfoChar(&buf, *cp);
2840  }
2841 
2842  return buf.data;
2843 }
void appendStringInfoChar(StringInfo str, char ch)
Definition: stringinfo.c:188

References appendStringInfoChar(), buf, initStringInfo(), and generate_unaccent_rules::str.

Referenced by get_connect_string().

◆ generate_relation_name()

static char * generate_relation_name ( Relation  rel)
static

Definition at line 2488 of file dblink.c.

2489 {
2490  char *nspname;
2491  char *result;
2492 
2493  /* Qualify the name if not visible in search path */
2495  nspname = NULL;
2496  else
2497  nspname = get_namespace_name(rel->rd_rel->relnamespace);
2498 
2499  result = quote_qualified_identifier(nspname, RelationGetRelationName(rel));
2500 
2501  return result;
2502 }
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3331
bool RelationIsVisible(Oid relid)
Definition: namespace.c:711
#define RelationGetRelid(relation)
Definition: rel.h:501
#define RelationGetRelationName(relation)
Definition: rel.h:535
char * quote_qualified_identifier(const char *qualifier, const char *ident)
Definition: ruleutils.c:11613
Form_pg_class rd_rel
Definition: rel.h:110

References get_namespace_name(), quote_qualified_identifier(), RelationData::rd_rel, RelationGetRelationName, RelationGetRelid, and RelationIsVisible().

Referenced by get_sql_delete(), get_sql_insert(), get_sql_update(), and get_tuple_of_interest().

◆ get_attnum_pk_pos()

static int get_attnum_pk_pos ( int *  pkattnums,
int  pknumatts,
int  key 
)
static

Definition at line 2335 of file dblink.c.

2336 {
2337  int i;
2338 
2339  /*
2340  * Not likely a long list anyway, so just scan for the value
2341  */
2342  for (i = 0; i < pknumatts; i++)
2343  if (key == pkattnums[i])
2344  return i;
2345 
2346  return -1;
2347 }

References i, and sort-test::key.

Referenced by get_sql_insert(), and get_sql_update().

◆ get_connect_string()

static char * get_connect_string ( const char *  servername)
static

Definition at line 2738 of file dblink.c.

2739 {
2740  ForeignServer *foreign_server = NULL;
2741  UserMapping *user_mapping;
2742  ListCell *cell;
2744  ForeignDataWrapper *fdw;
2745  AclResult aclresult;
2746  char *srvname;
2747 
2748  static const PQconninfoOption *options = NULL;
2749 
2750  initStringInfo(&buf);
2751 
2752  /*
2753  * Get list of valid libpq options.
2754  *
2755  * To avoid unnecessary work, we get the list once and use it throughout
2756  * the lifetime of this backend process. We don't need to care about
2757  * memory context issues, because PQconndefaults allocates with malloc.
2758  */
2759  if (!options)
2760  {
2761  options = PQconndefaults();
2762  if (!options) /* assume reason for failure is OOM */
2763  ereport(ERROR,
2764  (errcode(ERRCODE_FDW_OUT_OF_MEMORY),
2765  errmsg("out of memory"),
2766  errdetail("Could not get libpq's default connection options.")));
2767  }
2768 
2769  /* first gather the server connstr options */
2770  srvname = pstrdup(servername);
2771  truncate_identifier(srvname, strlen(srvname), false);
2772  foreign_server = GetForeignServerByName(srvname, true);
2773 
2774  if (foreign_server)
2775  {
2776  Oid serverid = foreign_server->serverid;
2777  Oid fdwid = foreign_server->fdwid;
2778  Oid userid = GetUserId();
2779 
2780  user_mapping = GetUserMapping(userid, serverid);
2781  fdw = GetForeignDataWrapper(fdwid);
2782 
2783  /* Check permissions, user must have usage on the server. */
2784  aclresult = object_aclcheck(ForeignServerRelationId, serverid, userid, ACL_USAGE);
2785  if (aclresult != ACLCHECK_OK)
2786  aclcheck_error(aclresult, OBJECT_FOREIGN_SERVER, foreign_server->servername);
2787 
2788  foreach(cell, fdw->options)
2789  {
2790  DefElem *def = lfirst(cell);
2791 
2792  if (is_valid_dblink_option(options, def->defname, ForeignDataWrapperRelationId))
2793  appendStringInfo(&buf, "%s='%s' ", def->defname,
2794  escape_param_str(strVal(def->arg)));
2795  }
2796 
2797  foreach(cell, foreign_server->options)
2798  {
2799  DefElem *def = lfirst(cell);
2800 
2801  if (is_valid_dblink_option(options, def->defname, ForeignServerRelationId))
2802  appendStringInfo(&buf, "%s='%s' ", def->defname,
2803  escape_param_str(strVal(def->arg)));
2804  }
2805 
2806  foreach(cell, user_mapping->options)
2807  {
2808 
2809  DefElem *def = lfirst(cell);
2810 
2811  if (is_valid_dblink_option(options, def->defname, UserMappingRelationId))
2812  appendStringInfo(&buf, "%s='%s' ", def->defname,
2813  escape_param_str(strVal(def->arg)));
2814  }
2815 
2816  return buf.data;
2817  }
2818  else
2819  return NULL;
2820 }
AclResult
Definition: acl.h:182
@ ACLCHECK_OK
Definition: acl.h:183
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:2679
AclResult object_aclcheck(Oid classid, Oid objectid, Oid roleid, AclMode mode)
Definition: aclchk.c:3783
ForeignDataWrapper * GetForeignDataWrapper(Oid fdwid)
Definition: foreign.c:37
UserMapping * GetUserMapping(Oid userid, Oid serverid)
Definition: foreign.c:200
ForeignServer * GetForeignServerByName(const char *srvname, bool missing_ok)
Definition: foreign.c:182
Oid GetUserId(void)
Definition: miscinit.c:502
#define ACL_USAGE
Definition: parsenodes.h:91
@ OBJECT_FOREIGN_SERVER
Definition: parsenodes.h:1986
Node * arg
Definition: parsenodes.h:811
List * options
Definition: foreign.h:31
List * options
Definition: foreign.h:42
char * servername
Definition: foreign.h:39
Oid serverid
Definition: foreign.h:36
List * options
Definition: foreign.h:50
#define strVal(v)
Definition: value.h:82

References ACL_USAGE, aclcheck_error(), ACLCHECK_OK, appendStringInfo(), DefElem::arg, buf, DefElem::defname, ereport, errcode(), errdetail(), errmsg(), ERROR, escape_param_str(), ForeignServer::fdwid, GetForeignDataWrapper(), GetForeignServerByName(), GetUserId(), GetUserMapping(), initStringInfo(), is_valid_dblink_option(), lfirst, object_aclcheck(), OBJECT_FOREIGN_SERVER, ForeignDataWrapper::options, ForeignServer::options, UserMapping::options, PQconndefaults(), pstrdup(), ForeignServer::serverid, ForeignServer::servername, strVal, and truncate_identifier().

Referenced by dblink_connect(), and dblink_get_conn().

◆ get_pkey_attnames()

static char ** get_pkey_attnames ( Relation  rel,
int16 indnkeyatts 
)
static

Definition at line 2001 of file dblink.c.

2002 {
2003  Relation indexRelation;
2004  ScanKeyData skey;
2005  SysScanDesc scan;
2006  HeapTuple indexTuple;
2007  int i;
2008  char **result = NULL;
2009  TupleDesc tupdesc;
2010 
2011  /* initialize indnkeyatts to 0 in case no primary key exists */
2012  *indnkeyatts = 0;
2013 
2014  tupdesc = rel->rd_att;
2015 
2016  /* Prepare to scan pg_index for entries having indrelid = this rel. */
2017  indexRelation = table_open(IndexRelationId, AccessShareLock);
2018  ScanKeyInit(&skey,
2019  Anum_pg_index_indrelid,
2020  BTEqualStrategyNumber, F_OIDEQ,
2022 
2023  scan = systable_beginscan(indexRelation, IndexIndrelidIndexId, true,
2024  NULL, 1, &skey);
2025 
2026  while (HeapTupleIsValid(indexTuple = systable_getnext(scan)))
2027  {
2028  Form_pg_index index = (Form_pg_index) GETSTRUCT(indexTuple);
2029 
2030  /* we're only interested if it is the primary key */
2031  if (index->indisprimary)
2032  {
2033  *indnkeyatts = index->indnkeyatts;
2034  if (*indnkeyatts > 0)
2035  {
2036  result = palloc_array(char *, *indnkeyatts);
2037 
2038  for (i = 0; i < *indnkeyatts; i++)
2039  result[i] = SPI_fname(tupdesc, index->indkey.values[i]);
2040  }
2041  break;
2042  }
2043  }
2044 
2045  systable_endscan(scan);
2046  table_close(indexRelation, AccessShareLock);
2047 
2048  return result;
2049 }
void systable_endscan(SysScanDesc sysscan)
Definition: genam.c:599
HeapTuple systable_getnext(SysScanDesc sysscan)
Definition: genam.c:506
SysScanDesc systable_beginscan(Relation heapRelation, Oid indexId, bool indexOK, Snapshot snapshot, int nkeys, ScanKey key)
Definition: genam.c:387
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define GETSTRUCT(TUP)
Definition: htup_details.h:653
FormData_pg_index * Form_pg_index
Definition: pg_index.h:70
static Datum ObjectIdGetDatum(Oid X)
Definition: postgres.h:252
void ScanKeyInit(ScanKey entry, AttrNumber attributeNumber, StrategyNumber strategy, RegProcedure procedure, Datum argument)
Definition: scankey.c:76
char * SPI_fname(TupleDesc tupdesc, int fnumber)
Definition: spi.c:1196
#define BTEqualStrategyNumber
Definition: stratnum.h:31
TupleDesc rd_att
Definition: rel.h:111
Definition: type.h:95
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:126
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:40

References AccessShareLock, BTEqualStrategyNumber, GETSTRUCT, HeapTupleIsValid, i, ObjectIdGetDatum(), palloc_array, RelationData::rd_att, RelationGetRelid, ScanKeyInit(), SPI_fname(), systable_beginscan(), systable_endscan(), systable_getnext(), table_close(), and table_open().

Referenced by dblink_get_pkey().

◆ get_rel_from_relname()

static Relation get_rel_from_relname ( text relname_text,
LOCKMODE  lockmode,
AclMode  aclmode 
)
static

Definition at line 2463 of file dblink.c.

2464 {
2465  RangeVar *relvar;
2466  Relation rel;
2467  AclResult aclresult;
2468 
2469  relvar = makeRangeVarFromNameList(textToQualifiedNameList(relname_text));
2470  rel = table_openrv(relvar, lockmode);
2471 
2472  aclresult = pg_class_aclcheck(RelationGetRelid(rel), GetUserId(),
2473  aclmode);
2474  if (aclresult != ACLCHECK_OK)
2475  aclcheck_error(aclresult, get_relkind_objtype(rel->rd_rel->relkind),
2477 
2478  return rel;
2479 }
AclResult pg_class_aclcheck(Oid table_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:3931
RangeVar * makeRangeVarFromNameList(List *names)
Definition: namespace.c:3105
ObjectType get_relkind_objtype(char relkind)
Relation table_openrv(const RangeVar *relation, LOCKMODE lockmode)
Definition: table.c:83
List * textToQualifiedNameList(text *textval)
Definition: varlena.c:3672

References aclcheck_error(), ACLCHECK_OK, get_relkind_objtype(), GetUserId(), makeRangeVarFromNameList(), pg_class_aclcheck(), RelationData::rd_rel, RelationGetRelationName, RelationGetRelid, table_openrv(), and textToQualifiedNameList().

Referenced by dblink_build_sql_delete(), dblink_build_sql_insert(), dblink_build_sql_update(), and dblink_get_pkey().

◆ get_sql_delete()

static char * get_sql_delete ( Relation  rel,
int *  pkattnums,
int  pknumatts,
char **  tgt_pkattvals 
)
static

Definition at line 2192 of file dblink.c.

2193 {
2194  char *relname;
2195  TupleDesc tupdesc;
2197  int i;
2198 
2199  initStringInfo(&buf);
2200 
2201  /* get relation name including any needed schema prefix and quoting */
2203 
2204  tupdesc = rel->rd_att;
2205 
2206  appendStringInfo(&buf, "DELETE FROM %s WHERE ", relname);
2207  for (i = 0; i < pknumatts; i++)
2208  {
2209  int pkattnum = pkattnums[i];
2210  Form_pg_attribute attr = TupleDescAttr(tupdesc, pkattnum);
2211 
2212  if (i > 0)
2213  appendStringInfoString(&buf, " AND ");
2214 
2216  quote_ident_cstr(NameStr(attr->attname)));
2217 
2218  if (tgt_pkattvals[i] != NULL)
2219  appendStringInfo(&buf, " = %s",
2220  quote_literal_cstr(tgt_pkattvals[i]));
2221  else
2222  appendStringInfoString(&buf, " IS NULL");
2223  }
2224 
2225  return buf.data;
2226 }
#define NameStr(name)
Definition: c.h:730
FormData_pg_attribute * Form_pg_attribute
Definition: pg_attribute.h:207
NameData relname
Definition: pg_class.h:38
char * quote_literal_cstr(const char *rawstr)
Definition: quote.c:103
void appendStringInfoString(StringInfo str, const char *s)
Definition: stringinfo.c:176
#define TupleDescAttr(tupdesc, i)
Definition: tupdesc.h:92

References appendStringInfo(), appendStringInfoString(), buf, generate_relation_name(), i, initStringInfo(), NameStr, quote_ident_cstr(), quote_literal_cstr(), RelationData::rd_att, relname, and TupleDescAttr.

Referenced by dblink_build_sql_delete().

◆ get_sql_insert()

static char * get_sql_insert ( Relation  rel,
int *  pkattnums,
int  pknumatts,
char **  src_pkattvals,
char **  tgt_pkattvals 
)
static

Definition at line 2112 of file dblink.c.

2113 {
2114  char *relname;
2115  HeapTuple tuple;
2116  TupleDesc tupdesc;
2117  int natts;
2119  char *val;
2120  int key;
2121  int i;
2122  bool needComma;
2123 
2124  initStringInfo(&buf);
2125 
2126  /* get relation name including any needed schema prefix and quoting */
2128 
2129  tupdesc = rel->rd_att;
2130  natts = tupdesc->natts;
2131 
2132  tuple = get_tuple_of_interest(rel, pkattnums, pknumatts, src_pkattvals);
2133  if (!tuple)
2134  ereport(ERROR,
2135  (errcode(ERRCODE_CARDINALITY_VIOLATION),
2136  errmsg("source row not found")));
2137 
2138  appendStringInfo(&buf, "INSERT INTO %s(", relname);
2139 
2140  needComma = false;
2141  for (i = 0; i < natts; i++)
2142  {
2143  Form_pg_attribute att = TupleDescAttr(tupdesc, i);
2144 
2145  if (att->attisdropped)
2146  continue;
2147 
2148  if (needComma)
2149  appendStringInfoChar(&buf, ',');
2150 
2152  quote_ident_cstr(NameStr(att->attname)));
2153  needComma = true;
2154  }
2155 
2156  appendStringInfoString(&buf, ") VALUES(");
2157 
2158  /*
2159  * Note: i is physical column number (counting from 0).
2160  */
2161  needComma = false;
2162  for (i = 0; i < natts; i++)
2163  {
2164  if (TupleDescAttr(tupdesc, i)->attisdropped)
2165  continue;
2166 
2167  if (needComma)
2168  appendStringInfoChar(&buf, ',');
2169 
2170  key = get_attnum_pk_pos(pkattnums, pknumatts, i);
2171 
2172  if (key >= 0)
2173  val = tgt_pkattvals[key] ? pstrdup(tgt_pkattvals[key]) : NULL;
2174  else
2175  val = SPI_getvalue(tuple, tupdesc, i + 1);
2176 
2177  if (val != NULL)
2178  {
2180  pfree(val);
2181  }
2182  else
2183  appendStringInfoString(&buf, "NULL");
2184  needComma = true;
2185  }
2186  appendStringInfoChar(&buf, ')');
2187 
2188  return buf.data;
2189 }
long val
Definition: informix.c:664
char * SPI_getvalue(HeapTuple tuple, TupleDesc tupdesc, int fnumber)
Definition: spi.c:1218

References appendStringInfo(), appendStringInfoChar(), appendStringInfoString(), buf, ereport, errcode(), errmsg(), ERROR, generate_relation_name(), get_attnum_pk_pos(), get_tuple_of_interest(), i, initStringInfo(), sort-test::key, NameStr, TupleDescData::natts, pfree(), pstrdup(), quote_ident_cstr(), quote_literal_cstr(), RelationData::rd_att, relname, SPI_getvalue(), TupleDescAttr, and val.

Referenced by dblink_build_sql_insert().

◆ get_sql_update()

static char * get_sql_update ( Relation  rel,
int *  pkattnums,
int  pknumatts,
char **  src_pkattvals,
char **  tgt_pkattvals 
)
static

Definition at line 2229 of file dblink.c.

2230 {
2231  char *relname;
2232  HeapTuple tuple;
2233  TupleDesc tupdesc;
2234  int natts;
2236  char *val;
2237  int key;
2238  int i;
2239  bool needComma;
2240 
2241  initStringInfo(&buf);
2242 
2243  /* get relation name including any needed schema prefix and quoting */
2245 
2246  tupdesc = rel->rd_att;
2247  natts = tupdesc->natts;
2248 
2249  tuple = get_tuple_of_interest(rel, pkattnums, pknumatts, src_pkattvals);
2250  if (!tuple)
2251  ereport(ERROR,
2252  (errcode(ERRCODE_CARDINALITY_VIOLATION),
2253  errmsg("source row not found")));
2254 
2255  appendStringInfo(&buf, "UPDATE %s SET ", relname);
2256 
2257  /*
2258  * Note: i is physical column number (counting from 0).
2259  */
2260  needComma = false;
2261  for (i = 0; i < natts; i++)
2262  {
2263  Form_pg_attribute attr = TupleDescAttr(tupdesc, i);
2264 
2265  if (attr->attisdropped)
2266  continue;
2267 
2268  if (needComma)
2269  appendStringInfoString(&buf, ", ");
2270 
2271  appendStringInfo(&buf, "%s = ",
2272  quote_ident_cstr(NameStr(attr->attname)));
2273 
2274  key = get_attnum_pk_pos(pkattnums, pknumatts, i);
2275 
2276  if (key >= 0)
2277  val = tgt_pkattvals[key] ? pstrdup(tgt_pkattvals[key]) : NULL;
2278  else
2279  val = SPI_getvalue(tuple, tupdesc, i + 1);
2280 
2281  if (val != NULL)
2282  {
2284  pfree(val);
2285  }
2286  else
2287  appendStringInfoString(&buf, "NULL");
2288  needComma = true;
2289  }
2290 
2291  appendStringInfoString(&buf, " WHERE ");
2292 
2293  for (i = 0; i < pknumatts; i++)
2294  {
2295  int pkattnum = pkattnums[i];
2296  Form_pg_attribute attr = TupleDescAttr(tupdesc, pkattnum);
2297 
2298  if (i > 0)
2299  appendStringInfoString(&buf, " AND ");
2300 
2302  quote_ident_cstr(NameStr(attr->attname)));
2303 
2304  val = tgt_pkattvals[i];
2305 
2306  if (val != NULL)
2308  else
2309  appendStringInfoString(&buf, " IS NULL");
2310  }
2311 
2312  return buf.data;
2313 }

References appendStringInfo(), appendStringInfoString(), buf, ereport, errcode(), errmsg(), ERROR, generate_relation_name(), get_attnum_pk_pos(), get_tuple_of_interest(), i, initStringInfo(), sort-test::key, NameStr, TupleDescData::natts, pfree(), pstrdup(), quote_ident_cstr(), quote_literal_cstr(), RelationData::rd_att, relname, SPI_getvalue(), TupleDescAttr, and val.

Referenced by dblink_build_sql_update().

◆ get_text_array_contents()

static char ** get_text_array_contents ( ArrayType array,
int *  numitems 
)
static

Definition at line 2056 of file dblink.c.

2057 {
2058  int ndim = ARR_NDIM(array);
2059  int *dims = ARR_DIMS(array);
2060  int nitems;
2061  int16 typlen;
2062  bool typbyval;
2063  char typalign;
2064  char **values;
2065  char *ptr;
2066  bits8 *bitmap;
2067  int bitmask;
2068  int i;
2069 
2070  Assert(ARR_ELEMTYPE(array) == TEXTOID);
2071 
2072  *numitems = nitems = ArrayGetNItems(ndim, dims);
2073 
2075  &typlen, &typbyval, &typalign);
2076 
2077  values = palloc_array(char *, nitems);
2078 
2079  ptr = ARR_DATA_PTR(array);
2080  bitmap = ARR_NULLBITMAP(array);
2081  bitmask = 1;
2082 
2083  for (i = 0; i < nitems; i++)
2084  {
2085  if (bitmap && (*bitmap & bitmask) == 0)
2086  {
2087  values[i] = NULL;
2088  }
2089  else
2090  {
2092  ptr = att_addlength_pointer(ptr, typlen, ptr);
2093  ptr = (char *) att_align_nominal(ptr, typalign);
2094  }
2095 
2096  /* advance bitmap pointer if any */
2097  if (bitmap)
2098  {
2099  bitmask <<= 1;
2100  if (bitmask == 0x100)
2101  {
2102  bitmap++;
2103  bitmask = 1;
2104  }
2105  }
2106  }
2107 
2108  return values;
2109 }
#define ARR_NDIM(a)
Definition: array.h:283
#define ARR_DATA_PTR(a)
Definition: array.h:315
#define ARR_NULLBITMAP(a)
Definition: array.h:293
#define ARR_ELEMTYPE(a)
Definition: array.h:285
#define ARR_DIMS(a)
Definition: array.h:287
int ArrayGetNItems(int ndim, const int *dims)
Definition: arrayutils.c:76
#define TextDatumGetCString(d)
Definition: builtins.h:95
uint8 bits8
Definition: c.h:497
void get_typlenbyvalalign(Oid typid, int16 *typlen, bool *typbyval, char *typalign)
Definition: lsyscache.c:2229
char typalign
Definition: pg_type.h:176
static Datum PointerGetDatum(const void *X)
Definition: postgres.h:322
#define att_align_nominal(cur_offset, attalign)
Definition: tupmacs.h:129
#define att_addlength_pointer(cur_offset, attlen, attptr)
Definition: tupmacs.h:157

References ARR_DATA_PTR, ARR_DIMS, ARR_ELEMTYPE, ARR_NDIM, ARR_NULLBITMAP, ArrayGetNItems(), Assert(), att_addlength_pointer, att_align_nominal, get_typlenbyvalalign(), i, palloc_array, PointerGetDatum(), TextDatumGetCString, typalign, and values.

Referenced by dblink_build_sql_delete(), dblink_build_sql_insert(), and dblink_build_sql_update().

◆ get_tuple_of_interest()

static HeapTuple get_tuple_of_interest ( Relation  rel,
int *  pkattnums,
int  pknumatts,
char **  src_pkattvals 
)
static

Definition at line 2350 of file dblink.c.

2351 {
2352  char *relname;
2353  TupleDesc tupdesc;
2354  int natts;
2356  int ret;
2357  HeapTuple tuple;
2358  int i;
2359 
2360  /*
2361  * Connect to SPI manager
2362  */
2363  if ((ret = SPI_connect()) < 0)
2364  /* internal error */
2365  elog(ERROR, "SPI connect failure - returned %d", ret);
2366 
2367  initStringInfo(&buf);
2368 
2369  /* get relation name including any needed schema prefix and quoting */
2371 
2372  tupdesc = rel->rd_att;
2373  natts = tupdesc->natts;
2374 
2375  /*
2376  * Build sql statement to look up tuple of interest, ie, the one matching
2377  * src_pkattvals. We used to use "SELECT *" here, but it's simpler to
2378  * generate a result tuple that matches the table's physical structure,
2379  * with NULLs for any dropped columns. Otherwise we have to deal with two
2380  * different tupdescs and everything's very confusing.
2381  */
2382  appendStringInfoString(&buf, "SELECT ");
2383 
2384  for (i = 0; i < natts; i++)
2385  {
2386  Form_pg_attribute attr = TupleDescAttr(tupdesc, i);
2387 
2388  if (i > 0)
2389  appendStringInfoString(&buf, ", ");
2390 
2391  if (attr->attisdropped)
2392  appendStringInfoString(&buf, "NULL");
2393  else
2395  quote_ident_cstr(NameStr(attr->attname)));
2396  }
2397 
2398  appendStringInfo(&buf, " FROM %s WHERE ", relname);
2399 
2400  for (i = 0; i < pknumatts; i++)
2401  {
2402  int pkattnum = pkattnums[i];
2403  Form_pg_attribute attr = TupleDescAttr(tupdesc, pkattnum);
2404 
2405  if (i > 0)
2406  appendStringInfoString(&buf, " AND ");
2407 
2409  quote_ident_cstr(NameStr(attr->attname)));
2410 
2411  if (src_pkattvals[i] != NULL)
2412  appendStringInfo(&buf, " = %s",
2413  quote_literal_cstr(src_pkattvals[i]));
2414  else
2415  appendStringInfoString(&buf, " IS NULL");
2416  }
2417 
2418  /*
2419  * Retrieve the desired tuple
2420  */
2421  ret = SPI_exec(buf.data, 0);
2422  pfree(buf.data);
2423 
2424  /*
2425  * Only allow one qualifying tuple
2426  */
2427  if ((ret == SPI_OK_SELECT) && (SPI_processed > 1))
2428  ereport(ERROR,
2429  (errcode(ERRCODE_CARDINALITY_VIOLATION),
2430  errmsg("source criteria matched more than one record")));
2431 
2432  else if (ret == SPI_OK_SELECT && SPI_processed == 1)
2433  {
2434  SPITupleTable *tuptable = SPI_tuptable;
2435 
2436  tuple = SPI_copytuple(tuptable->vals[0]);
2437  SPI_finish();
2438 
2439  return tuple;
2440  }
2441  else
2442  {
2443  /*
2444  * no qualifying tuples
2445  */
2446  SPI_finish();
2447 
2448  return NULL;
2449  }
2450 
2451  /*
2452  * never reached, but keep compiler quiet
2453  */
2454  return NULL;
2455 }
uint64 SPI_processed
Definition: spi.c:45
SPITupleTable * SPI_tuptable
Definition: spi.c:46
int SPI_connect(void)
Definition: spi.c:95
int SPI_finish(void)
Definition: spi.c:183
int SPI_exec(const char *src, long tcount)
Definition: spi.c:628
HeapTuple SPI_copytuple(HeapTuple tuple)
Definition: spi.c:1045
#define SPI_OK_SELECT
Definition: spi.h:86
HeapTuple * vals
Definition: spi.h:26

References appendStringInfo(), appendStringInfoString(), buf, elog(), ereport, errcode(), errmsg(), ERROR, generate_relation_name(), i, initStringInfo(), NameStr, TupleDescData::natts, pfree(), quote_ident_cstr(), quote_literal_cstr(), RelationData::rd_att, relname, SPI_connect(), SPI_copytuple(), SPI_exec(), SPI_finish(), SPI_OK_SELECT, SPI_processed, SPI_tuptable, TupleDescAttr, and SPITupleTable::vals.

Referenced by get_sql_insert(), and get_sql_update().

◆ getConnectionByName()

static remoteConn * getConnectionByName ( const char *  name)
static

Definition at line 2506 of file dblink.c.

2507 {
2508  remoteConnHashEnt *hentry;
2509  char *key;
2510 
2511  if (!remoteConnHash)
2513 
2514  key = pstrdup(name);
2515  truncate_identifier(key, strlen(key), false);
2517  key, HASH_FIND, NULL);
2518 
2519  if (hentry)
2520  return hentry->rconn;
2521 
2522  return NULL;
2523 }
@ HASH_FIND
Definition: hsearch.h:113

References createConnHash(), HASH_FIND, hash_search(), sort-test::key, name, pstrdup(), remoteConnHashEnt::rconn, remoteConnHash, and truncate_identifier().

Referenced by dblink_close(), dblink_disconnect(), dblink_fetch(), dblink_get_conn(), dblink_get_named_conn(), and dblink_open().

◆ is_valid_dblink_option()

static bool is_valid_dblink_option ( const PQconninfoOption options,
const char *  option,
Oid  context 
)
static

Definition at line 2932 of file dblink.c.

2934 {
2935  const PQconninfoOption *opt;
2936 
2937  /* Look up the option in libpq result */
2938  for (opt = options; opt->keyword; opt++)
2939  {
2940  if (strcmp(opt->keyword, option) == 0)
2941  break;
2942  }
2943  if (opt->keyword == NULL)
2944  return false;
2945 
2946  /* Disallow debug options (particularly "replication") */
2947  if (strchr(opt->dispchar, 'D'))
2948  return false;
2949 
2950  /* Disallow "client_encoding" */
2951  if (strcmp(opt->keyword, "client_encoding") == 0)
2952  return false;
2953 
2954  /*
2955  * If the option is "user" or marked secure, it should be specified only
2956  * in USER MAPPING. Others should be specified only in SERVER.
2957  */
2958  if (strcmp(opt->keyword, "user") == 0 || strchr(opt->dispchar, '*'))
2959  {
2960  if (context != UserMappingRelationId)
2961  return false;
2962  }
2963  else
2964  {
2965  if (context != ForeignServerRelationId)
2966  return false;
2967  }
2968 
2969  return true;
2970 }

References _PQconninfoOption::dispchar, and _PQconninfoOption::keyword.

Referenced by dblink_fdw_validator(), and get_connect_string().

◆ materializeQueryResult()

static void materializeQueryResult ( FunctionCallInfo  fcinfo,
PGconn conn,
const char *  conname,
const char *  sql,
bool  fail 
)
static

Definition at line 973 of file dblink.c.

978 {
979  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
980  PGresult *volatile res = NULL;
981  volatile storeInfo sinfo = {0};
982 
983  /* prepTuplestoreResult must have been called previously */
984  Assert(rsinfo->returnMode == SFRM_Materialize);
985 
986  sinfo.fcinfo = fcinfo;
987 
988  PG_TRY();
989  {
990  /* Create short-lived memory context for data conversions */
991  sinfo.tmpcontext = AllocSetContextCreate(CurrentMemoryContext,
992  "dblink temporary context",
994 
995  /* execute query, collecting any tuples into the tuplestore */
996  res = storeQueryResult(&sinfo, conn, sql);
997 
998  if (!res ||
1001  {
1002  /*
1003  * dblink_res_error will clear the passed PGresult, so we need
1004  * this ugly dance to avoid doing so twice during error exit
1005  */
1006  PGresult *res1 = res;
1007 
1008  res = NULL;
1009  dblink_res_error(conn, conname, res1, fail,
1010  "while executing query");
1011  /* if fail isn't set, we'll return an empty query result */
1012  }
1013  else if (PQresultStatus(res) == PGRES_COMMAND_OK)
1014  {
1015  /*
1016  * storeRow didn't get called, so we need to convert the command
1017  * status string to a tuple manually
1018  */
1019  TupleDesc tupdesc;
1020  AttInMetadata *attinmeta;
1021  Tuplestorestate *tupstore;
1022  HeapTuple tuple;
1023  char *values[1];
1024  MemoryContext oldcontext;
1025 
1026  /*
1027  * need a tuple descriptor representing one TEXT column to return
1028  * the command status string as our result tuple
1029  */
1030  tupdesc = CreateTemplateTupleDesc(1);
1031  TupleDescInitEntry(tupdesc, (AttrNumber) 1, "status",
1032  TEXTOID, -1, 0);
1033  attinmeta = TupleDescGetAttInMetadata(tupdesc);
1034 
1035  oldcontext = MemoryContextSwitchTo(rsinfo->econtext->ecxt_per_query_memory);
1036  tupstore = tuplestore_begin_heap(true, false, work_mem);
1037  rsinfo->setResult = tupstore;
1038  rsinfo->setDesc = tupdesc;
1039  MemoryContextSwitchTo(oldcontext);
1040 
1041  values[0] = PQcmdStatus(res);
1042 
1043  /* build the tuple and put it into the tuplestore. */
1044  tuple = BuildTupleFromCStrings(attinmeta, values);
1045  tuplestore_puttuple(tupstore, tuple);
1046 
1047  PQclear(res);
1048  res = NULL;
1049  }
1050  else
1051  {
1053  /* storeRow should have created a tuplestore */
1054  Assert(rsinfo->setResult != NULL);
1055 
1056  PQclear(res);
1057  res = NULL;
1058  }
1059 
1060  /* clean up data conversion short-lived memory context */
1061  if (sinfo.tmpcontext != NULL)
1062  MemoryContextDelete(sinfo.tmpcontext);
1063  sinfo.tmpcontext = NULL;
1064 
1065  PQclear(sinfo.last_res);
1066  sinfo.last_res = NULL;
1067  PQclear(sinfo.cur_res);
1068  sinfo.cur_res = NULL;
1069  }
1070  PG_CATCH();
1071  {
1072  /* be sure to release any libpq result we collected */
1073  PQclear(res);
1074  PQclear(sinfo.last_res);
1075  PQclear(sinfo.cur_res);
1076  /* and clear out any pending data in libpq */
1077  while ((res = PQgetResult(conn)) != NULL)
1078  PQclear(res);
1079  PG_RE_THROW();
1080  }
1081  PG_END_TRY();
1082 }
#define PG_RE_THROW()
Definition: elog.h:411
#define PG_CATCH(...)
Definition: elog.h:380
@ SFRM_Materialize
Definition: execnodes.h:309
int work_mem
Definition: globals.c:125
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:387
#define AllocSetContextCreate
Definition: memutils.h:129
#define ALLOCSET_DEFAULT_SIZES
Definition: memutils.h:153
fmNodePtr resultinfo
Definition: fmgr.h:89
Tuplestorestate * tuplestore_begin_heap(bool randomAccess, bool interXact, int maxKBytes)
Definition: tuplestore.c:318
void tuplestore_puttuple(Tuplestorestate *state, HeapTuple tuple)
Definition: tuplestore.c:730

References res, and FunctionCallInfoBaseData::resultinfo.

Referenced by dblink_record_internal().

◆ materializeResult()

static void materializeResult ( FunctionCallInfo  fcinfo,
PGconn conn,
PGresult res 
)
static

Definition at line 834 of file dblink.c.

835 {
836  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
837 
838  /* prepTuplestoreResult must have been called previously */
839  Assert(rsinfo->returnMode == SFRM_Materialize);
840 
841  PG_TRY();
842  {
843  TupleDesc tupdesc;
844  bool is_sql_cmd;
845  int ntuples;
846  int nfields;
847 
849  {
850  is_sql_cmd = true;
851 
852  /*
853  * need a tuple descriptor representing one TEXT column to return
854  * the command status string as our result tuple
855  */
856  tupdesc = CreateTemplateTupleDesc(1);
857  TupleDescInitEntry(tupdesc, (AttrNumber) 1, "status",
858  TEXTOID, -1, 0);
859  ntuples = 1;
860  nfields = 1;
861  }
862  else
863  {
865 
866  is_sql_cmd = false;
867 
868  /* get a tuple descriptor for our result type */
869  switch (get_call_result_type(fcinfo, NULL, &tupdesc))
870  {
871  case TYPEFUNC_COMPOSITE:
872  /* success */
873  break;
874  case TYPEFUNC_RECORD:
875  /* failed to determine actual type of RECORD */
876  ereport(ERROR,
877  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
878  errmsg("function returning record called in context "
879  "that cannot accept type record")));
880  break;
881  default:
882  /* result type isn't composite */
883  elog(ERROR, "return type must be a row type");
884  break;
885  }
886 
887  /* make sure we have a persistent copy of the tupdesc */
888  tupdesc = CreateTupleDescCopy(tupdesc);
889  ntuples = PQntuples(res);
890  nfields = PQnfields(res);
891  }
892 
893  /*
894  * check result and tuple descriptor have the same number of columns
895  */
896  if (nfields != tupdesc->natts)
897  ereport(ERROR,
898  (errcode(ERRCODE_DATATYPE_MISMATCH),
899  errmsg("remote query result rowtype does not match "
900  "the specified FROM clause rowtype")));
901 
902  if (ntuples > 0)
903  {
904  AttInMetadata *attinmeta;
905  int nestlevel = -1;
906  Tuplestorestate *tupstore;
907  MemoryContext oldcontext;
908  int row;
909  char **values;
910 
911  attinmeta = TupleDescGetAttInMetadata(tupdesc);
912 
913  /* Set GUCs to ensure we read GUC-sensitive data types correctly */
914  if (!is_sql_cmd)
915  nestlevel = applyRemoteGucs(conn);
916 
918  tupstore = tuplestore_begin_heap(true, false, work_mem);
919  rsinfo->setResult = tupstore;
920  rsinfo->setDesc = tupdesc;
921  MemoryContextSwitchTo(oldcontext);
922 
923  values = palloc_array(char *, nfields);
924 
925  /* put all tuples into the tuplestore */
926  for (row = 0; row < ntuples; row++)
927  {
928  HeapTuple tuple;
929 
930  if (!is_sql_cmd)
931  {
932  int i;
933 
934  for (i = 0; i < nfields; i++)
935  {
936  if (PQgetisnull(res, row, i))
937  values[i] = NULL;
938  else
939  values[i] = PQgetvalue(res, row, i);
940  }
941  }
942  else
943  {
944  values[0] = PQcmdStatus(res);
945  }
946 
947  /* build the tuple and put it into the tuplestore. */
948  tuple = BuildTupleFromCStrings(attinmeta, values);
949  tuplestore_puttuple(tupstore, tuple);
950  }
951 
952  /* clean up GUC settings, if we changed any */
953  restoreLocalGucs(nestlevel);
954  }
955  }
956  PG_FINALLY();
957  {
958  /* be sure to release the libpq result */
959  PQclear(res);
960  }
961  PG_END_TRY();
962 }
int PQntuples(const PGresult *res)
Definition: fe-exec.c:3310
char * PQgetvalue(const PGresult *res, int tup_num, int field_num)
Definition: fe-exec.c:3705
int PQgetisnull(const PGresult *res, int tup_num, int field_num)
Definition: fe-exec.c:3730
int PQnfields(const PGresult *res)
Definition: fe-exec.c:3318
TypeFuncClass get_call_result_type(FunctionCallInfo fcinfo, Oid *resultTypeId, TupleDesc *resultTupleDesc)
Definition: funcapi.c:276
@ TYPEFUNC_COMPOSITE
Definition: funcapi.h:149
@ TYPEFUNC_RECORD
Definition: funcapi.h:151
MemoryContext ecxt_per_query_memory
Definition: execnodes.h:254
SetFunctionReturnMode returnMode
Definition: execnodes.h:328
ExprContext * econtext
Definition: execnodes.h:324
TupleDesc CreateTupleDescCopy(TupleDesc tupdesc)
Definition: tupdesc.c:111

References applyRemoteGucs(), Assert(), BuildTupleFromCStrings(), conn, CreateTemplateTupleDesc(), CreateTupleDescCopy(), ReturnSetInfo::econtext, ExprContext::ecxt_per_query_memory, elog(), ereport, errcode(), errmsg(), ERROR, get_call_result_type(), i, MemoryContextSwitchTo(), TupleDescData::natts, palloc_array, PG_END_TRY, PG_FINALLY, PG_TRY, PGRES_COMMAND_OK, PGRES_TUPLES_OK, PQclear(), PQcmdStatus(), PQgetisnull(), PQgetvalue(), PQnfields(), PQntuples(), PQresultStatus(), res, restoreLocalGucs(), FunctionCallInfoBaseData::resultinfo, ReturnSetInfo::returnMode, ReturnSetInfo::setDesc, ReturnSetInfo::setResult, SFRM_Materialize, TupleDescGetAttInMetadata(), TupleDescInitEntry(), tuplestore_begin_heap(), tuplestore_puttuple(), TYPEFUNC_COMPOSITE, TYPEFUNC_RECORD, values, and work_mem.

Referenced by dblink_fetch(), and dblink_record_internal().

◆ pg_attribute_noreturn()

static void pg_attribute_noreturn ( )
static

Definition at line 166 of file dblink.c.

168 {
169  if (conname)
170  ereport(ERROR,
171  (errcode(ERRCODE_CONNECTION_DOES_NOT_EXIST),
172  errmsg("connection \"%s\" not available", conname)));
173  else
174  ereport(ERROR,
175  (errcode(ERRCODE_CONNECTION_DOES_NOT_EXIST),
176  errmsg("connection not available")));
177 }

References ereport, errcode(), errmsg(), and ERROR.

◆ PG_FUNCTION_INFO_V1() [1/20]

PG_FUNCTION_INFO_V1 ( dblink_build_sql_delete  )

◆ PG_FUNCTION_INFO_V1() [2/20]

PG_FUNCTION_INFO_V1 ( dblink_build_sql_insert  )

◆ PG_FUNCTION_INFO_V1() [3/20]

PG_FUNCTION_INFO_V1 ( dblink_build_sql_update  )

◆ PG_FUNCTION_INFO_V1() [4/20]

PG_FUNCTION_INFO_V1 ( dblink_cancel_query  )

◆ PG_FUNCTION_INFO_V1() [5/20]

PG_FUNCTION_INFO_V1 ( dblink_close  )

◆ PG_FUNCTION_INFO_V1() [6/20]

PG_FUNCTION_INFO_V1 ( dblink_connect  )

◆ PG_FUNCTION_INFO_V1() [7/20]

PG_FUNCTION_INFO_V1 ( dblink_current_query  )

◆ PG_FUNCTION_INFO_V1() [8/20]

PG_FUNCTION_INFO_V1 ( dblink_disconnect  )

◆ PG_FUNCTION_INFO_V1() [9/20]

PG_FUNCTION_INFO_V1 ( dblink_error_message  )

◆ PG_FUNCTION_INFO_V1() [10/20]

PG_FUNCTION_INFO_V1 ( dblink_exec  )

◆ PG_FUNCTION_INFO_V1() [11/20]

PG_FUNCTION_INFO_V1 ( dblink_fdw_validator  )

◆ PG_FUNCTION_INFO_V1() [12/20]

PG_FUNCTION_INFO_V1 ( dblink_fetch  )

◆ PG_FUNCTION_INFO_V1() [13/20]

PG_FUNCTION_INFO_V1 ( dblink_get_connections  )

◆ PG_FUNCTION_INFO_V1() [14/20]

PG_FUNCTION_INFO_V1 ( dblink_get_notify  )

◆ PG_FUNCTION_INFO_V1() [15/20]

PG_FUNCTION_INFO_V1 ( dblink_get_pkey  )

◆ PG_FUNCTION_INFO_V1() [16/20]

PG_FUNCTION_INFO_V1 ( dblink_get_result  )

◆ PG_FUNCTION_INFO_V1() [17/20]

PG_FUNCTION_INFO_V1 ( dblink_is_busy  )

◆ PG_FUNCTION_INFO_V1() [18/20]

PG_FUNCTION_INFO_V1 ( dblink_open  )

◆ PG_FUNCTION_INFO_V1() [19/20]

PG_FUNCTION_INFO_V1 ( dblink_record  )

◆ PG_FUNCTION_INFO_V1() [20/20]

PG_FUNCTION_INFO_V1 ( dblink_send_query  )

◆ PQclear()

PQclear ( res  )

Referenced by _check_database_version(), _doSetSessionAuth(), _selectOutputSchema(), _selectTableAccessMethod(), _selectTablespace(), add_tablespace_footer(), addFooterToPublicationDesc(), advanceConnectionState(), append_depends_on_extension(), appendQualifiedRelation(), BaseBackup(), binary_upgrade_set_pg_class_oids(), binary_upgrade_set_type_oids_by_type_oid(), buildMatViewRefreshDependencies(), buildShSecLabels(), check_for_data_types_usage(), check_for_incompatible_polymorphics(), check_for_isn_and_int8_passing_mismatch(), check_for_pg_role_prefix(), check_for_prepared_transactions(), check_for_tables_with_oids(), check_for_user_defined_encoding_conversions(), check_for_user_defined_postfix_ops(), check_is_install_user(), check_loadable_libraries(), check_prepare_conn(), check_proper_datallowconn(), ClearOrSaveResult(), close_cursor(), cluster_all_databases(), collectComments(), collectRoleNames(), collectSecLabels(), compile_database_list(), compile_relation_list_one_db(), ConnectDatabase(), connectDatabase(), connectToServer(), convertTSFunction(), create_cursor(), CreateReplicationSlot(), createViewAsClause(), dblink_close(), dblink_exec(), dblink_fetch(), dblink_open(), dblink_res_error(), deallocate_one(), deallocate_query(), describeAccessMethods(), describeAggregates(), describeConfigurationParameters(), describeFunctions(), describeOneTableDetails(), describeOneTSConfig(), describeOneTSParser(), describeOperators(), describePublications(), DescribeQuery(), describeRoles(), describeSubscriptions(), describeTableDetails(), describeTablespaces(), describeTypes(), descriptor_free(), discardUntilSync(), do_lo_import(), do_sql_command_end(), dropDBs(), DropReplicationSlot(), dropRoles(), dropTablespaces(), dumpAgg(), dumpBaseType(), dumpCollation(), dumpCompositeType(), dumpConversion(), dumpDatabase(), dumpDatabaseConfig(), dumpDatabases(), dumpDomain(), dumpEnumType(), dumpForeignServer(), dumpFunc(), dumpLOs(), dumpOpclass(), dumpOpfamily(), dumpOpr(), dumpRangeType(), dumpRoleGUCPrivs(), dumpRoleMembership(), dumpRoles(), dumpRule(), dumpSearchPath(), dumpSequence(), dumpSequenceData(), dumpStatisticsExt(), dumpTable(), dumpTableAttach(), dumpTableData_copy(), dumpTableData_insert(), dumpTableSchema(), dumpTablespaces(), dumpTSConfig(), dumpTSDictionary(), dumpUserConfig(), dumpUserMappings(), ecpg_autostart_transaction(), ecpg_check_PQresult(), ecpg_process_output(), ECPGdescribe(), ECPGsetcommit(), ECPGtrans(), EndDBCopyMode(), exec_command_password(), ExecQueryUsingCursor(), execute_foreign_modify(), executeCommand(), executeMaintenanceCommand(), executeQueryOrDie(), ExecuteSqlCommand(), ExecuteSqlStatement(), executeStatement(), expand_dbname_patterns(), expand_extension_name_patterns(), expand_foreign_server_name_patterns(), expand_schema_name_patterns(), expand_table_name_patterns(), fail_lo_xact(), fetch_more_data(), finish_lo_xact(), get_create_object_cmd(), get_db_infos(), get_language_name(), get_loadable_libraries(), get_next_possible_free_pg_type_oid(), get_parallel_object_list(), get_rel_infos(), get_remote_estimate(), get_returning_data(), get_synchronized_snapshot(), get_tablespace_paths(), getAccessMethods(), getAdditionalACLs(), getAggregates(), getCasts(), getCollations(), GetConnection(), getConstraints(), getConversions(), getCopyStart(), getDefaultACLs(), getDependencies(), getDomainConstraints(), getEventTriggers(), getExtendedStatistics(), getExtensionMembership(), getExtensions(), getForeignDataWrappers(), getForeignServers(), getFormattedTypeName(), getFuncs(), getIndexes(), getInherits(), getLOs(), getNamespaces(), getOpclasses(), getOperators(), getOpfamilies(), getParamDescriptions(), getPolicies(), getProcLangs(), getPublicationNamespaces(), getPublications(), getPublicationTables(), getRowDescriptions(), getRules(), GetSlotInformation(), getSubscriptions(), getTableAttrs(), GetTableInfo(), getTables(), getTransforms(), getTriggers(), getTSConfigurations(), getTSDictionaries(), getTSParsers(), getTSTemplates(), getTypes(), handleCopyIn(), HandleCopyResult(), HandleEndOfCopyStream(), init_libpq_conn(), initGenerateDataClientSide(), libpq_fetch_file(), libpq_traverse_files(), libpqrcv_connect(), libpqrcv_create_slot(), libpqrcv_endstreaming(), libpqrcv_exec(), libpqrcv_identify_system(), libpqrcv_PQexec(), libpqrcv_readtimelinehistoryfile(), libpqrcv_receive(), libpqrcv_startstreaming(), listAllDbs(), listCasts(), listCollations(), listConversions(), listDbRoleSettings(), listDefaultACLs(), listDomains(), listEventTriggers(), listExtendedStats(), listExtensionContents(), listExtensions(), listForeignDataWrappers(), listForeignServers(), listForeignTables(), listLanguages(), listLargeObjects(), listOneExtensionContents(), listOperatorClasses(), listOperatorFamilies(), listOpFamilyFunctions(), listOpFamilyOperators(), listPartitionedTables(), listPublications(), listSchemas(), listTables(), listTSConfigs(), listTSConfigsVerbose(), listTSDictionaries(), listTSParsers(), listTSParsersVerbose(), listTSTemplates(), listUserMappings(), lo_close(), lo_creat(), lo_create(), lo_initialize(), lo_lseek(), lo_lseek64(), lo_open(), lo_read(), lo_tell(), lo_tell64(), lo_truncate(), lo_truncate64(), lo_unlink(), lo_write(), lockTableForWorker(), lookup_object_oid(), main(), materializeResult(), objectDescription(), old_9_6_invalidate_hash_indexes(), permissionsList(), pgfdw_cancel_query(), pgfdw_exec_cleanup_query(), pgfdw_finish_pre_commit_cleanup(), pgfdw_get_cleanup_result(), pgfdw_get_result(), pgfdw_report_error(), pgfdw_xact_callback(), postgresAcquireSampleRowsFunc(), postgresAnalyzeForeignTable(), postgresEndDirectModify(), postgresGetAnalyzeInfoForForeignTable(), postgresImportForeignSchema(), postgresReScanForeignScan(), PQconnectPoll(), PQencryptPasswordConn(), pqEndcopy3(), pqGetErrorNotice3(), PQsetClientEncoding(), prepare_common(), prepare_foreign_modify(), process_queued_fetch_requests(), process_result(), processExtensionTables(), processQueryResult(), readCommandResponse(), ReceiveCopyData(), ReceiveXlogStream(), reindex_all_databases(), report_extension_updates(), RetrieveDataDirCreatePerm(), RetrieveWalSegSize(), run_permutation(), run_simple_command(), run_simple_query(), RunIdentifySystem(), sendCommand(), SendQuery(), set_frozenxids(), setup_connection(), sql_conn(), sql_exec(), start_lo_xact(), store_returning_result(), storeQueryResult(), StreamLogicalLog(), TableCommandResultHandler(), test_multi_pipelines(), test_nosync(), test_pipeline_abort(), test_pipeline_idle(), test_pipelined_insert(), test_prepared(), test_simple_pipeline(), test_singlerowmode(), test_transaction(), try_complete_step(), tryExecuteStatement(), vacuum_all_databases(), vacuum_one_database(), and vacuumlo().

◆ prepTuplestoreResult()

static void prepTuplestoreResult ( FunctionCallInfo  fcinfo)
static

Definition at line 806 of file dblink.c.

807 {
808  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
809 
810  /* check to see if query supports us returning a tuplestore */
811  if (rsinfo == NULL || !IsA(rsinfo, ReturnSetInfo))
812  ereport(ERROR,
813  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
814  errmsg("set-valued function called in context that cannot accept a set")));
815  if (!(rsinfo->allowedModes & SFRM_Materialize))
816  ereport(ERROR,
817  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
818  errmsg("materialize mode required, but it is not allowed in this context")));
819 
820  /* let the executor know we're sending back a tuplestore */
821  rsinfo->returnMode = SFRM_Materialize;
822 
823  /* caller must fill these to return a non-empty result */
824  rsinfo->setResult = NULL;
825  rsinfo->setDesc = NULL;
826 }
#define IsA(nodeptr, _type_)
Definition: nodes.h:179
int allowedModes
Definition: execnodes.h:326

References ReturnSetInfo::allowedModes, ereport, errcode(), errmsg(), ERROR, if(), IsA, FunctionCallInfoBaseData::resultinfo, ReturnSetInfo::returnMode, ReturnSetInfo::setDesc, ReturnSetInfo::setResult, and SFRM_Materialize.

Referenced by dblink_fetch(), and dblink_record_internal().

◆ quote_ident_cstr()

static char * quote_ident_cstr ( char *  rawstr)
static

Definition at line 2320 of file dblink.c.

2321 {
2322  text *rawstr_text;
2323  text *result_text;
2324  char *result;
2325 
2326  rawstr_text = cstring_to_text(rawstr);
2328  PointerGetDatum(rawstr_text)));
2329  result = text_to_cstring(result_text);
2330 
2331  return result;
2332 }
#define DatumGetTextPP(X)
Definition: fmgr.h:292
#define DirectFunctionCall1(func, arg1)
Definition: fmgr.h:642
Datum quote_ident(PG_FUNCTION_ARGS)
Definition: quote.c:25

References cstring_to_text(), DatumGetTextPP, DirectFunctionCall1, PointerGetDatum(), quote_ident(), and text_to_cstring().

Referenced by get_sql_delete(), get_sql_insert(), get_sql_update(), and get_tuple_of_interest().

◆ restoreLocalGucs()

static void restoreLocalGucs ( int  nestlevel)
static

Definition at line 3035 of file dblink.c.

3036 {
3037  /* Do nothing if no new nestlevel was created */
3038  if (nestlevel > 0)
3039  AtEOXact_GUC(true, nestlevel);
3040 }
void AtEOXact_GUC(bool isCommit, int nestLevel)
Definition: guc.c:2214

References AtEOXact_GUC().

Referenced by materializeResult(), and storeQueryResult().

◆ storeQueryResult()

static PGresult * storeQueryResult ( volatile storeInfo sinfo,
PGconn conn,
const char *  sql 
)
static

Definition at line 1088 of file dblink.c.

1089 {
1090  bool first = true;
1091  int nestlevel = -1;
1092  PGresult *res;
1093 
1094  if (!PQsendQuery(conn, sql))
1095  elog(ERROR, "could not send query: %s", pchomp(PQerrorMessage(conn)));
1096 
1097  if (!PQsetSingleRowMode(conn)) /* shouldn't fail */
1098  elog(ERROR, "failed to set single-row mode for dblink query");
1099 
1100  for (;;)
1101  {
1103 
1104  sinfo->cur_res = PQgetResult(conn);
1105  if (!sinfo->cur_res)
1106  break;
1107 
1108  if (PQresultStatus(sinfo->cur_res) == PGRES_SINGLE_TUPLE)
1109  {
1110  /* got one row from possibly-bigger resultset */
1111 
1112  /*
1113  * Set GUCs to ensure we read GUC-sensitive data types correctly.
1114  * We shouldn't do this until we have a row in hand, to ensure
1115  * libpq has seen any earlier ParameterStatus protocol messages.
1116  */
1117  if (first && nestlevel < 0)
1118  nestlevel = applyRemoteGucs(conn);
1119 
1120  storeRow(sinfo, sinfo->cur_res, first);
1121 
1122  PQclear(sinfo->cur_res);
1123  sinfo->cur_res = NULL;
1124  first = false;
1125  }
1126  else
1127  {
1128  /* if empty resultset, fill tuplestore header */
1129  if (first && PQresultStatus(sinfo->cur_res) == PGRES_TUPLES_OK)
1130  storeRow(sinfo, sinfo->cur_res, first);
1131 
1132  /* store completed result at last_res */
1133  PQclear(sinfo->last_res);
1134  sinfo->last_res = sinfo->cur_res;
1135  sinfo->cur_res = NULL;
1136  first = true;
1137  }
1138  }
1139 
1140  /* clean up GUC settings, if we changed any */
1141  restoreLocalGucs(nestlevel);
1142 
1143  /* return last_res */
1144  res = sinfo->last_res;
1145  sinfo->last_res = NULL;
1146  return res;
1147 }
int PQsetSingleRowMode(PGconn *conn)
Definition: fe-exec.c:1925
@ PGRES_SINGLE_TUPLE
Definition: libpq-fe.h:110
#define CHECK_FOR_INTERRUPTS()
Definition: miscadmin.h:121

References applyRemoteGucs(), CHECK_FOR_INTERRUPTS, conn, storeInfo::cur_res, elog(), ERROR, storeInfo::last_res, pchomp(), PGRES_SINGLE_TUPLE, PGRES_TUPLES_OK, PQclear(), PQerrorMessage(), PQgetResult(), PQresultStatus(), PQsendQuery(), PQsetSingleRowMode(), res, restoreLocalGucs(), and storeRow().

◆ storeRow()

static void storeRow ( volatile storeInfo sinfo,
PGresult res,
bool  first 
)
static

Definition at line 1156 of file dblink.c.

1157 {
1158  int nfields = PQnfields(res);
1159  HeapTuple tuple;
1160  int i;
1161  MemoryContext oldcontext;
1162 
1163  if (first)
1164  {
1165  /* Prepare for new result set */
1166  ReturnSetInfo *rsinfo = (ReturnSetInfo *) sinfo->fcinfo->resultinfo;
1167  TupleDesc tupdesc;
1168 
1169  /*
1170  * It's possible to get more than one result set if the query string
1171  * contained multiple SQL commands. In that case, we follow PQexec's
1172  * traditional behavior of throwing away all but the last result.
1173  */
1174  if (sinfo->tuplestore)
1175  tuplestore_end(sinfo->tuplestore);
1176  sinfo->tuplestore = NULL;
1177 
1178  /* get a tuple descriptor for our result type */
1179  switch (get_call_result_type(sinfo->fcinfo, NULL, &tupdesc))
1180  {
1181  case TYPEFUNC_COMPOSITE:
1182  /* success */
1183  break;
1184  case TYPEFUNC_RECORD:
1185  /* failed to determine actual type of RECORD */
1186  ereport(ERROR,
1187  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1188  errmsg("function returning record called in context "
1189  "that cannot accept type record")));
1190  break;
1191  default:
1192  /* result type isn't composite */
1193  elog(ERROR, "return type must be a row type");
1194  break;
1195  }
1196 
1197  /* make sure we have a persistent copy of the tupdesc */
1198  tupdesc = CreateTupleDescCopy(tupdesc);
1199 
1200  /* check result and tuple descriptor have the same number of columns */
1201  if (nfields != tupdesc->natts)
1202  ereport(ERROR,
1203  (errcode(ERRCODE_DATATYPE_MISMATCH),
1204  errmsg("remote query result rowtype does not match "
1205  "the specified FROM clause rowtype")));
1206 
1207  /* Prepare attinmeta for later data conversions */
1208  sinfo->attinmeta = TupleDescGetAttInMetadata(tupdesc);
1209 
1210  /* Create a new, empty tuplestore */
1211  oldcontext = MemoryContextSwitchTo(rsinfo->econtext->ecxt_per_query_memory);
1212  sinfo->tuplestore = tuplestore_begin_heap(true, false, work_mem);
1213  rsinfo->setResult = sinfo->tuplestore;
1214  rsinfo->setDesc = tupdesc;
1215  MemoryContextSwitchTo(oldcontext);
1216 
1217  /* Done if empty resultset */
1218  if (PQntuples(res) == 0)
1219  return;
1220 
1221  /*
1222  * Set up sufficiently-wide string pointers array; this won't change
1223  * in size so it's easy to preallocate.
1224  */
1225  if (sinfo->cstrs)
1226  pfree(sinfo->cstrs);
1227  sinfo->cstrs = palloc_array(char *, nfields);
1228  }
1229 
1230  /* Should have a single-row result if we get here */
1231  Assert(PQntuples(res) == 1);
1232 
1233  /*
1234  * Do the following work in a temp context that we reset after each tuple.
1235  * This cleans up not only the data we have direct access to, but any
1236  * cruft the I/O functions might leak.
1237  */
1238  oldcontext = MemoryContextSwitchTo(sinfo->tmpcontext);
1239 
1240  /*
1241  * Fill cstrs with null-terminated strings of column values.
1242  */
1243  for (i = 0; i < nfields; i++)
1244  {
1245  if (PQgetisnull(res, 0, i))
1246  sinfo->cstrs[i] = NULL;
1247  else
1248  sinfo->cstrs[i] = PQgetvalue(res, 0, i);
1249  }
1250 
1251  /* Convert row to a tuple, and add it to the tuplestore */
1252  tuple = BuildTupleFromCStrings(sinfo->attinmeta, sinfo->cstrs);
1253 
1254  tuplestore_puttuple(sinfo->tuplestore, tuple);
1255 
1256  /* Clean up */
1257  MemoryContextSwitchTo(oldcontext);
1258  MemoryContextReset(sinfo->tmpcontext);
1259 }
void MemoryContextReset(MemoryContext context)
Definition: mcxt.c:314
void tuplestore_end(Tuplestorestate *state)
Definition: tuplestore.c:453

References Assert(), storeInfo::attinmeta, BuildTupleFromCStrings(), CreateTupleDescCopy(), storeInfo::cstrs, ReturnSetInfo::econtext, ExprContext::ecxt_per_query_memory, elog(), ereport, errcode(), errmsg(), ERROR, storeInfo::fcinfo, get_call_result_type(), i, if(), MemoryContextReset(), MemoryContextSwitchTo(), TupleDescData::natts, palloc_array, pfree(), PQgetisnull(), PQgetvalue(), PQnfields(), PQntuples(), res, FunctionCallInfoBaseData::resultinfo, ReturnSetInfo::setDesc, ReturnSetInfo::setResult, storeInfo::tmpcontext, TupleDescGetAttInMetadata(), storeInfo::tuplestore, tuplestore_begin_heap(), tuplestore_end(), tuplestore_puttuple(), TYPEFUNC_COMPOSITE, TYPEFUNC_RECORD, and work_mem.

Referenced by storeQueryResult().

◆ validate_pkattnums()

static void validate_pkattnums ( Relation  rel,
int2vector pkattnums_arg,
int32  pknumatts_arg,
int **  pkattnums,
int *  pknumatts 
)
static

Definition at line 2861 of file dblink.c.

2864 {
2865  TupleDesc tupdesc = rel->rd_att;
2866  int natts = tupdesc->natts;
2867  int i;
2868 
2869  /* Don't take more array elements than there are */
2870  pknumatts_arg = Min(pknumatts_arg, pkattnums_arg->dim1);
2871 
2872  /* Must have at least one pk attnum selected */
2873  if (pknumatts_arg <= 0)
2874  ereport(ERROR,
2875  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2876  errmsg("number of key attributes must be > 0")));
2877 
2878  /* Allocate output array */
2879  *pkattnums = palloc_array(int, pknumatts_arg);
2880  *pknumatts = pknumatts_arg;
2881 
2882  /* Validate attnums and convert to internal form */
2883  for (i = 0; i < pknumatts_arg; i++)
2884  {
2885  int pkattnum = pkattnums_arg->values[i];
2886  int lnum;
2887  int j;
2888 
2889  /* Can throw error immediately if out of range */
2890  if (pkattnum <= 0 || pkattnum > natts)
2891  ereport(ERROR,
2892  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2893  errmsg("invalid attribute number %d", pkattnum)));
2894 
2895  /* Identify which physical column has this logical number */
2896  lnum = 0;
2897  for (j = 0; j < natts; j++)
2898  {
2899  /* dropped columns don't count */
2900  if (TupleDescAttr(tupdesc, j)->attisdropped)
2901  continue;
2902 
2903  if (++lnum == pkattnum)
2904  break;
2905  }
2906 
2907  if (j < natts)
2908  (*pkattnums)[i] = j;
2909  else
2910  ereport(ERROR,
2911  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2912  errmsg("invalid attribute number %d", pkattnum)));
2913  }
2914 }
#define Min(x, y)
Definition: c.h:988
int j
Definition: isn.c:74
int dim1
Definition: c.h:704
int16 values[FLEXIBLE_ARRAY_MEMBER]
Definition: c.h:706

References int2vector::dim1, ereport, errcode(), errmsg(), ERROR, i, j, Min, TupleDescData::natts, palloc_array, RelationData::rd_att, TupleDescAttr, and int2vector::values.

Referenced by dblink_build_sql_delete(), dblink_build_sql_insert(), and dblink_build_sql_update().

◆ xpstrdup()

static char* xpstrdup ( const char *  in)
static

Definition at line 148 of file dblink.c.

149 {
150  if (in == NULL)
151  return NULL;
152  return pstrdup(in);
153 }

References pstrdup().

Referenced by dblink_res_error().

Variable Documentation

◆ p2

◆ pconn

◆ PG_MODULE_MAGIC

PG_MODULE_MAGIC

Definition at line 64 of file dblink.c.

◆ remoteConnHash

HTAB* remoteConnHash = NULL
static

◆ res

void PGresult* res

Definition at line 157 of file dblink.c.

Referenced by _bt_binsrch_posting(), _check_database_version(), _doSetSessionAuth(), _int_contains(), _intbig_alloc(), _lca(), _lt_q_regex(), _ltq_regex(), _ltree_consistent(), _ltree_isparent(), _ltree_risparent(), _ltxtq_exec(), _pgp_read_public_key(), _ReadByte(), _selectOutputSchema(), _selectTableAccessMethod(), _selectTablespace(), _SPI_execute_plan(), _SPI_pquery(), _tarAddFile(), _tarReadRaw(), _tocEntryRequired(), addFooterToPublicationDesc(), addItemPointersToLeafTuple(), advance_windowaggregate(), advance_windowaggregate_base(), advanceConnectionState(), analyze_row_processor(), anybit_typmodout(), anychar_typmodout(), append_depends_on_extension(), appendBoolResult(), appendQualifiedRelation(), appendReloptionsArrayAH(), BaseBackup(), bf_check_supported_key_len(), binary_decode(), binary_encode(), binary_upgrade_set_type_oids_by_type_oid(), blgetbitmap(), BloomFormTuple(), bn_to_mpi(), btgettuple(), btproperty(), buildFreshLeafTuple(), buildMatViewRefreshDependencies(), buildShSecLabels(), byteaSetBit(), byteaSetByte(), calc_key_id(), calc_rank(), calc_rank_and(), calc_rank_or(), cfb_process(), check_field_number(), check_for_data_types_usage(), check_for_incompatible_polymorphics(), check_for_isn_and_int8_passing_mismatch(), check_for_pg_role_prefix(), check_for_prepared_transactions(), check_for_tables_with_oids(), check_for_user_defined_encoding_conversions(), check_for_user_defined_postfix_ops(), check_is_install_user(), check_key_cksum(), check_key_sha1(), check_loadable_libraries(), check_locale(), check_locale_name(), check_param_number(), check_prepare_conn(), check_publications(), check_publications_origin(), check_tuple_field_number(), checkcondition_str(), CheckForBufferLeaks(), clean_NOT_intree(), clean_stopword_intree(), close_cursor(), CloseArchive(), cmp_list_len_contents_asc(), cmpEntries(), cmpTheLexeme(), cnt_sml(), collectComments(), collectMatchesForHeapRow(), collectRoleNames(), collectSecLabels(), combo_decrypt(), combo_encrypt(), compareItems(), compareJsonbContainers(), comparePairs(), CompareTSQ(), compareWORD(), compile_database_list(), compile_relation_list_one_db(), ConditionalLockRelation(), ConditionalLockRelationOid(), contain_context_dependent_node_walker(), convert_charset(), convert_network_to_scalar(), convertToJsonb(), convertTSFunction(), copy_crlf(), copy_messages(), copy_table(), copyTSLexeme(), cpstrdup(), create_cursor(), create_secmsg(), createPQExpBuffer(), CreateReplicationSlot(), createViewAsClause(), crlf_process(), cube_cmp(), cube_contained(), cube_contains(), cube_eq(), cube_ge(), cube_gt(), cube_le(), cube_lt(), cube_ne(), cube_overlap(), cube_union(), datetime_to_char_body(), datumCopy(), datumIsEqual(), dblink_cancel_query(), dblink_close(), dblink_exec(), dblink_fetch(), dblink_open(), dblink_record_internal(), dblink_res_error(), deallocate_query(), decompose_code(), decrypt_elgamal(), decrypt_internal(), decrypt_key(), decrypt_read(), decrypt_rsa(), defaultNoticeReceiver(), describeAccessMethods(), describeAggregates(), describeConfigurationParameters(), describeFunctions(), describeOneTableDetails(), describeOneTSConfig(), describeOneTSParser(), describeOperators(), describePublications(), describeRoles(), describeSubscriptions(), describeTableDetails(), describeTablespaces(), describeTypes(), DetermineTimeZoneOffsetInternal(), dintdict_lexize(), discardUntilSync(), dispell_lexize(), do_field(), do_header(), do_lo_import(), do_sql_command_end(), do_watch(), downcase_convert(), dropDBs(), DropReplicationSlot(), dropRoles(), dropTablespaces(), dsimple_lexize(), dsnowball_lexize(), dsynonym_lexize(), dump_lo_buf(), dumpAgg(), dumpBaseType(), dumpCollation(), dumpCompositeType(), dumpCompositeTypeColComments(), dumpConversion(), dumpDatabase(), dumpDatabaseConfig(), dumpDatabases(), dumpDomain(), dumpEnumType(), dumpForeignServer(), dumpFunc(), dumpLOs(), dumpOpclass(), dumpOpfamily(), dumpOpr(), dumpRangeType(), dumpRoleGUCPrivs(), dumpRoleMembership(), dumpRoles(), dumpRule(), dumpSearchPath(), dumpSequence(), dumpSequenceData(), dumpStatisticsExt(), dumpTable(), dumpTableAttach(), dumpTableData_copy(), dumpTableData_insert(), dumpTableSchema(), dumpTablespaces(), dumpTSConfig(), dumpTSDictionary(), dumpUserConfig(), dumpUserMappings(), duplicate_numeric(), dxsyn_lexize(), ecpg_build_compat_sqlda(), ecpg_build_native_sqlda(), ecpg_get_data(), ecpg_process_output(), ecpg_set_compat_sqlda(), ecpg_set_native_sqlda(), ECPGdescribe(), ECPGtrans(), emitShSecLabels(), encrypt_and_write_elgamal(), encrypt_and_write_rsa(), encrypt_init(), encrypt_internal(), encrypt_process(), EndDBCopyMode(), evalStandardFunc(), exec_command_password(), ExecEvalStepOp(), execute_foreign_modify(), execute_jsp_gin_node(), executeAnyItem(), executeBinaryArithmExpr(), executeBoolItem(), executeCommand(), executeDateTimeMethod(), executeItemOptUnwrapResult(), executeItemOptUnwrapResultNoThrow(), executeItemOptUnwrapTarget(), executeJsonPath(), executeKeyValueMethod(), executeMaintenanceCommand(), executeNestedBoolItem(), executePredicate(), executeQuery(), ExecuteSqlCommand(), ExecuteSqlQuery(), ExecuteSqlQueryForSingleRow(), ExecuteSqlStatement(), executeStatement(), expand_dbname_patterns(), expand_extension_name_patterns(), expand_foreign_server_name_patterns(), expand_schema_name_patterns(), expand_table_name_patterns(), fail_lo_xact(), fetch_more_data(), fetch_remote_table_info(), fetch_table_list(), find_among(), find_among_b(), find_next_mcelem(), find_provider(), find_window_run_conditions(), findTheLexeme(), finish_lo_xact(), float4_numeric(), float8_numeric(), g_cube_consistent(), g_int_union(), g_intbig_compress(), gbt_date_penalty(), gbt_datekey_cmp(), gbt_intvkey_cmp(), gbt_macad8key_cmp(), gbt_macadkey_cmp(), gbt_time_penalty(), gbt_timekey_cmp(), gbt_tskey_cmp(), gbt_uuidkey_cmp(), gbt_var_penalty(), gbt_vsrt_cmp(), gen_ossl_decrypt(), gen_ossl_encrypt(), get_canonical_locale_name(), get_create_object_cmd(), get_db_infos(), get_distance(), get_hex(), get_jsonb_path_all(), get_language_name(), get_loadable_libraries(), get_next_possible_free_pg_type_oid(), get_parallel_object_list(), get_rel_infos(), get_remote_estimate(), get_subscription_list(), get_synchronized_snapshot(), get_tablespace_paths(), getAccessMethods(), getAdditionalACLs(), getAggregates(), getArrayIndex(), getCasts(), getCollations(), GetConnection(), getConstraints(), getConversions(), getDatumCopy(), getDefaultACLs(), getDependencies(), getDomainConstraints(), getEventTriggers(), getExtendedStatistics(), getExtensionMembership(), getExtensions(), getForeignDataWrappers(), getForeignServers(), getFormattedTypeName(),