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.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 bool dblink_connstr_has_pw (const char *connstr)
 
static void dblink_security_check (PGconn *conn, remoteConn *rconn, const char *connstr)
 
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 uint32 dblink_we_connect = 0
 
static uint32 dblink_we_get_conn = 0
 
static void PGresultres
 
static void PGresult const char * p2
 

Macro Definition Documentation

◆ DBLINK_NOTIFY_COLS

#define DBLINK_NOTIFY_COLS   3

Definition at line 1879 of file dblink.c.

◆ NUMCONN

#define NUMCONN   16

Definition at line 151 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 3032 of file dblink.c.

3033 {
3034  static const char *const GUCsAffectingIO[] = {
3035  "DateStyle",
3036  "IntervalStyle"
3037  };
3038 
3039  int nestlevel = -1;
3040  int i;
3041 
3042  for (i = 0; i < lengthof(GUCsAffectingIO); i++)
3043  {
3044  const char *gucName = GUCsAffectingIO[i];
3045  const char *remoteVal = PQparameterStatus(conn, gucName);
3046  const char *localVal;
3047 
3048  /*
3049  * If the remote server is pre-8.4, it won't have IntervalStyle, but
3050  * that's okay because its output format won't be ambiguous. So just
3051  * skip the GUC if we don't get a value for it. (We might eventually
3052  * need more complicated logic with remote-version checks here.)
3053  */
3054  if (remoteVal == NULL)
3055  continue;
3056 
3057  /*
3058  * Avoid GUC-setting overhead if the remote and local GUCs already
3059  * have the same value.
3060  */
3061  localVal = GetConfigOption(gucName, false, false);
3062  Assert(localVal != NULL);
3063 
3064  if (strcmp(remoteVal, localVal) == 0)
3065  continue;
3066 
3067  /* Create new GUC nest level if we didn't already */
3068  if (nestlevel < 0)
3069  nestlevel = NewGUCNestLevel();
3070 
3071  /* Apply the option (this will throw error on failure) */
3072  (void) set_config_option(gucName, remoteVal,
3074  GUC_ACTION_SAVE, true, 0, false);
3075  }
3076 
3077  return nestlevel;
3078 }
#define lengthof(array)
Definition: c.h:777
const char * PQparameterStatus(const PGconn *conn, const char *paramName)
Definition: fe-connect.c:7213
int NewGUCNestLevel(void)
Definition: guc.c:2231
const char * GetConfigOption(const char *name, bool missing_ok, bool restrict_privileged)
Definition: guc.c:4229
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:3314
@ 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 2540 of file dblink.c.

2541 {
2542  HASHCTL ctl;
2543 
2544  ctl.keysize = NAMEDATALEN;
2545  ctl.entrysize = sizeof(remoteConnHashEnt);
2546 
2547  return hash_create("Remote Con hash", NUMCONN, &ctl,
2549 }
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 2552 of file dblink.c.

2553 {
2554  remoteConnHashEnt *hentry;
2555  bool found;
2556  char *key;
2557 
2558  if (!remoteConnHash)
2560 
2561  key = pstrdup(name);
2562  truncate_identifier(key, strlen(key), true);
2564  HASH_ENTER, &found);
2565 
2566  if (found)
2567  {
2568  libpqsrv_disconnect(rconn->conn);
2569  pfree(rconn);
2570 
2571  ereport(ERROR,
2573  errmsg("duplicate connection name")));
2574  }
2575 
2576  hentry->rconn = rconn;
2577  strlcpy(hentry->name, name, sizeof(hentry->name));
2578 }
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
@ HASH_ENTER
Definition: hsearch.h:114
static void libpqsrv_disconnect(PGconn *conn)
char * pstrdup(const char *in)
Definition: mcxt.c:1644
void pfree(void *pointer)
Definition: mcxt.c:1456
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:146
remoteConn * rconn
Definition: dblink.c:147
PGconn * conn
Definition: dblink.c:69
const char * name

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 1710 of file dblink.c.

1711 {
1712  text *relname_text = PG_GETARG_TEXT_PP(0);
1713  int2vector *pkattnums_arg = (int2vector *) PG_GETARG_POINTER(1);
1714  int32 pknumatts_arg = PG_GETARG_INT32(2);
1715  ArrayType *tgt_pkattvals_arry = PG_GETARG_ARRAYTYPE_P(3);
1716  Relation rel;
1717  int *pkattnums;
1718  int pknumatts;
1719  char **tgt_pkattvals;
1720  int tgt_nitems;
1721  char *sql;
1722 
1723  /*
1724  * Open target relation.
1725  */
1726  rel = get_rel_from_relname(relname_text, AccessShareLock, ACL_SELECT);
1727 
1728  /*
1729  * Process pkattnums argument.
1730  */
1731  validate_pkattnums(rel, pkattnums_arg, pknumatts_arg,
1732  &pkattnums, &pknumatts);
1733 
1734  /*
1735  * Target array is made up of key values that will be used to build the
1736  * SQL string for use on the remote system.
1737  */
1738  tgt_pkattvals = get_text_array_contents(tgt_pkattvals_arry, &tgt_nitems);
1739 
1740  /*
1741  * There should be one target array key value for each key attnum
1742  */
1743  if (tgt_nitems != pknumatts)
1744  ereport(ERROR,
1745  (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
1746  errmsg("target key array length must match number of key attributes")));
1747 
1748  /*
1749  * Prep work is finally done. Go get the SQL string.
1750  */
1751  sql = get_sql_delete(rel, pkattnums, pknumatts, tgt_pkattvals);
1752 
1753  /*
1754  * Now we can close the relation.
1755  */
1757 
1758  /*
1759  * And send it
1760  */
1762 }
#define PG_GETARG_ARRAYTYPE_P(n)
Definition: array.h:263
signed int int32
Definition: c.h:483
#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:77
void relation_close(Relation relation, LOCKMODE lockmode)
Definition: relation.c:206
Definition: c.h:704
Definition: c.h:676
text * cstring_to_text(const char *s)
Definition: varlena.c:184

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 1621 of file dblink.c.

1622 {
1623  text *relname_text = PG_GETARG_TEXT_PP(0);
1624  int2vector *pkattnums_arg = (int2vector *) PG_GETARG_POINTER(1);
1625  int32 pknumatts_arg = PG_GETARG_INT32(2);
1626  ArrayType *src_pkattvals_arry = PG_GETARG_ARRAYTYPE_P(3);
1627  ArrayType *tgt_pkattvals_arry = PG_GETARG_ARRAYTYPE_P(4);
1628  Relation rel;
1629  int *pkattnums;
1630  int pknumatts;
1631  char **src_pkattvals;
1632  char **tgt_pkattvals;
1633  int src_nitems;
1634  int tgt_nitems;
1635  char *sql;
1636 
1637  /*
1638  * Open target relation.
1639  */
1640  rel = get_rel_from_relname(relname_text, AccessShareLock, ACL_SELECT);
1641 
1642  /*
1643  * Process pkattnums argument.
1644  */
1645  validate_pkattnums(rel, pkattnums_arg, pknumatts_arg,
1646  &pkattnums, &pknumatts);
1647 
1648  /*
1649  * Source array is made up of key values that will be used to locate the
1650  * tuple of interest from the local system.
1651  */
1652  src_pkattvals = get_text_array_contents(src_pkattvals_arry, &src_nitems);
1653 
1654  /*
1655  * There should be one source array key value for each key attnum
1656  */
1657  if (src_nitems != pknumatts)
1658  ereport(ERROR,
1659  (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
1660  errmsg("source key array length must match number of key attributes")));
1661 
1662  /*
1663  * Target array is made up of key values that will be used to build the
1664  * SQL string for use on the remote system.
1665  */
1666  tgt_pkattvals = get_text_array_contents(tgt_pkattvals_arry, &tgt_nitems);
1667 
1668  /*
1669  * There should be one target array key value for each key attnum
1670  */
1671  if (tgt_nitems != pknumatts)
1672  ereport(ERROR,
1673  (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
1674  errmsg("target key array length must match number of key attributes")));
1675 
1676  /*
1677  * Prep work is finally done. Go get the SQL string.
1678  */
1679  sql = get_sql_insert(rel, pkattnums, pknumatts, src_pkattvals, tgt_pkattvals);
1680 
1681  /*
1682  * Now we can close the relation.
1683  */
1685 
1686  /*
1687  * And send it
1688  */
1690 }

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 1786 of file dblink.c.

1787 {
1788  text *relname_text = PG_GETARG_TEXT_PP(0);
1789  int2vector *pkattnums_arg = (int2vector *) PG_GETARG_POINTER(1);
1790  int32 pknumatts_arg = PG_GETARG_INT32(2);
1791  ArrayType *src_pkattvals_arry = PG_GETARG_ARRAYTYPE_P(3);
1792  ArrayType *tgt_pkattvals_arry = PG_GETARG_ARRAYTYPE_P(4);
1793  Relation rel;
1794  int *pkattnums;
1795  int pknumatts;
1796  char **src_pkattvals;
1797  char **tgt_pkattvals;
1798  int src_nitems;
1799  int tgt_nitems;
1800  char *sql;
1801 
1802  /*
1803  * Open target relation.
1804  */
1805  rel = get_rel_from_relname(relname_text, AccessShareLock, ACL_SELECT);
1806 
1807  /*
1808  * Process pkattnums argument.
1809  */
1810  validate_pkattnums(rel, pkattnums_arg, pknumatts_arg,
1811  &pkattnums, &pknumatts);
1812 
1813  /*
1814  * Source array is made up of key values that will be used to locate the
1815  * tuple of interest from the local system.
1816  */
1817  src_pkattvals = get_text_array_contents(src_pkattvals_arry, &src_nitems);
1818 
1819  /*
1820  * There should be one source array key value for each key attnum
1821  */
1822  if (src_nitems != pknumatts)
1823  ereport(ERROR,
1824  (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
1825  errmsg("source key array length must match number of key attributes")));
1826 
1827  /*
1828  * Target array is made up of key values that will be used to build the
1829  * SQL string for use on the remote system.
1830  */
1831  tgt_pkattvals = get_text_array_contents(tgt_pkattvals_arry, &tgt_nitems);
1832 
1833  /*
1834  * There should be one target array key value for each key attnum
1835  */
1836  if (tgt_nitems != pknumatts)
1837  ereport(ERROR,
1838  (errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
1839  errmsg("target key array length must match number of key attributes")));
1840 
1841  /*
1842  * Prep work is finally done. Go get the SQL string.
1843  */
1844  sql = get_sql_update(rel, pkattnums, pknumatts, src_pkattvals, tgt_pkattvals);
1845 
1846  /*
1847  * Now we can close the relation.
1848  */
1850 
1851  /*
1852  * And send it
1853  */
1855 }

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 1341 of file dblink.c.

1342 {
1343  int res;
1344  PGconn *conn;
1345  PGcancel *cancel;
1346  char errbuf[256];
1347 
1348  dblink_init();
1350  cancel = PQgetCancel(conn);
1351 
1352  res = PQcancel(cancel, errbuf, 256);
1353  PQfreeCancel(cancel);
1354 
1355  if (res == 1)
1357  else
1359 }
PGcancel * PQgetCancel(PGconn *conn)
Definition: fe-connect.c:4707
int PQcancel(PGcancel *cancel, char *errbuf, int errbufsize)
Definition: fe-connect.c:4821
void PQfreeCancel(PGcancel *cancel)
Definition: fe-connect.c:4775
char * text_to_cstring(const text *t)
Definition: varlena.c:217

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 481 of file dblink.c.

482 {
483  PGconn *conn;
484  PGresult *res = NULL;
485  char *curname = NULL;
486  char *conname = NULL;
488  remoteConn *rconn = NULL;
489  bool fail = true; /* default to backward compatible behavior */
490 
491  dblink_init();
493 
494  if (PG_NARGS() == 1)
495  {
496  /* text */
497  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
498  rconn = pconn;
499  }
500  else if (PG_NARGS() == 2)
501  {
502  /* might be text,text or text,bool */
503  if (get_fn_expr_argtype(fcinfo->flinfo, 1) == BOOLOID)
504  {
505  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
506  fail = PG_GETARG_BOOL(1);
507  rconn = pconn;
508  }
509  else
510  {
511  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
512  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
513  rconn = getConnectionByName(conname);
514  }
515  }
516  if (PG_NARGS() == 3)
517  {
518  /* text,text,bool */
519  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
520  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
521  fail = PG_GETARG_BOOL(2);
522  rconn = getConnectionByName(conname);
523  }
524 
525  if (!rconn || !rconn->conn)
526  dblink_conn_not_avail(conname);
527 
528  conn = rconn->conn;
529 
530  appendStringInfo(&buf, "CLOSE %s", curname);
531 
532  /* close the cursor */
533  res = PQexec(conn, buf.data);
535  {
536  dblink_res_error(conn, conname, res, fail,
537  "while closing cursor \"%s\"", curname);
539  }
540 
541  PQclear(res);
542 
543  /* if we started a transaction, decrement cursor count */
544  if (rconn->newXactForCursor)
545  {
546  (rconn->openCursorCount)--;
547 
548  /* if count is zero, commit the transaction */
549  if (rconn->openCursorCount == 0)
550  {
551  rconn->newXactForCursor = false;
552 
553  res = PQexec(conn, "COMMIT");
555  dblink_res_internalerror(conn, res, "commit error");
556  PQclear(res);
557  }
558  }
559 
561 }
ExecStatusType PQresultStatus(const PGresult *res)
Definition: fe-exec.c:3333
PGresult * PQexec(PGconn *conn, const char *query)
Definition: fe-exec.c:2228
Oid get_fn_expr_argtype(FmgrInfo *flinfo, int argnum)
Definition: fmgr.c:1893
#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:73
void appendStringInfo(StringInfo str, const char *fmt,...)
Definition: stringinfo.c:97
void initStringInfo(StringInfo str)
Definition: stringinfo.c:59
bool newXactForCursor
Definition: dblink.c:71
int openCursorCount
Definition: dblink.c:70

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 267 of file dblink.c.

268 {
269  char *conname_or_str = NULL;
270  char *connstr = NULL;
271  char *connname = NULL;
272  char *msg;
273  PGconn *conn = NULL;
274  remoteConn *rconn = NULL;
275 
276  dblink_init();
277 
278  if (PG_NARGS() == 2)
279  {
280  conname_or_str = text_to_cstring(PG_GETARG_TEXT_PP(1));
281  connname = text_to_cstring(PG_GETARG_TEXT_PP(0));
282  }
283  else if (PG_NARGS() == 1)
284  conname_or_str = text_to_cstring(PG_GETARG_TEXT_PP(0));
285 
286  if (connname)
287  {
289  sizeof(remoteConn));
290  rconn->conn = NULL;
291  rconn->openCursorCount = 0;
292  rconn->newXactForCursor = false;
293  }
294 
295  /* first check for valid foreign data server */
296  connstr = get_connect_string(conname_or_str);
297  if (connstr == NULL)
298  connstr = conname_or_str;
299 
300  /* check password in connection string if not superuser */
302 
303  /* first time, allocate or get the custom wait event */
304  if (dblink_we_connect == 0)
305  dblink_we_connect = WaitEventExtensionNew("DblinkConnect");
306 
307  /* OK to make connection */
309 
310  if (PQstatus(conn) == CONNECTION_BAD)
311  {
312  msg = pchomp(PQerrorMessage(conn));
314  if (rconn)
315  pfree(rconn);
316 
317  ereport(ERROR,
318  (errcode(ERRCODE_SQLCLIENT_UNABLE_TO_ESTABLISH_SQLCONNECTION),
319  errmsg("could not establish connection"),
320  errdetail_internal("%s", msg)));
321  }
322 
323  /* check password actually used if not superuser */
325 
326  /* attempt to set client encoding to match server encoding, if needed */
329 
330  if (connname)
331  {
332  rconn->conn = conn;
333  createNewConnection(connname, rconn);
334  }
335  else
336  {
337  if (pconn->conn)
339  pconn->conn = conn;
340  }
341 
343 }
int errdetail_internal(const char *fmt,...)
Definition: elog.c:1229
char * PQerrorMessage(const PGconn *conn)
Definition: fe-connect.c:7248
ConnStatusType PQstatus(const PGconn *conn)
Definition: fe-connect.c:7195
int PQclientEncoding(const PGconn *conn)
Definition: fe-connect.c:7336
int PQsetClientEncoding(PGconn *conn, const char *encoding)
Definition: fe-connect.c:7344
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:1672
MemoryContext TopMemoryContext
Definition: mcxt.c:141
void * MemoryContextAlloc(MemoryContext context, Size size)
Definition: mcxt.c:1021
static char * connstr
Definition: pg_dumpall.c:88
uint32 WaitEventExtensionNew(const char *wait_event_name)
Definition: wait_event.c:164

References remoteConn::conn, conn, CONNECTION_BAD, connstr, createNewConnection(), cstring_to_text(), dblink_connstr_check(), dblink_init(), dblink_security_check(), dblink_we_connect, 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, PQclientEncoding(), PQerrorMessage(), PQsetClientEncoding(), PQstatus(), text_to_cstring(), TopMemoryContext, and WaitEventExtensionNew().

◆ dblink_connstr_check()

static void dblink_connstr_check ( const char *  connstr)
static

Definition at line 2677 of file dblink.c.

2678 {
2679  if (superuser())
2680  return;
2681 
2683  return;
2684 
2685 #ifdef ENABLE_GSS
2687  return;
2688 #endif
2689 
2690  ereport(ERROR,
2691  (errcode(ERRCODE_S_R_E_PROHIBITED_SQL_STATEMENT_ATTEMPTED),
2692  errmsg("password or GSSAPI delegated credentials required"),
2693  errdetail("Non-superusers must provide a password in the connection string or send delegated GSSAPI credentials.")));
2694 }
bool be_gssapi_get_delegation(Port *port)
int errdetail(const char *fmt,...)
Definition: elog.c:1202
struct Port * MyProcPort
Definition: globals.c:47
bool superuser(void)
Definition: superuser.c:46

References be_gssapi_get_delegation(), connstr, dblink_connstr_has_pw(), ereport, errcode(), errdetail(), errmsg(), ERROR, MyProcPort, and superuser().

Referenced by dblink_connect(), and dblink_get_conn().

◆ dblink_connstr_has_pw()

static bool dblink_connstr_has_pw ( const char *  connstr)
static

Definition at line 2642 of file dblink.c.

2643 {
2646  bool connstr_gives_password = false;
2647 
2648  options = PQconninfoParse(connstr, NULL);
2649  if (options)
2650  {
2651  for (option = options; option->keyword != NULL; option++)
2652  {
2653  if (strcmp(option->keyword, "password") == 0)
2654  {
2655  if (option->val != NULL && option->val[0] != '\0')
2656  {
2657  connstr_gives_password = true;
2658  break;
2659  }
2660  }
2661  }
2663  }
2664 
2665  return connstr_gives_password;
2666 }
PQconninfoOption * PQconninfoParse(const char *conninfo, char **errmsg)
Definition: fe-connect.c:5829
void PQconninfoFree(PQconninfoOption *connOptions)
Definition: fe-connect.c:7081
static char ** options
int val
Definition: getopt_long.h:21

References connstr, options, PQconninfoFree(), PQconninfoParse(), and option::val.

Referenced by dblink_connstr_check(), and dblink_security_check().

◆ dblink_current_query()

Datum dblink_current_query ( PG_FUNCTION_ARGS  )

Definition at line 1865 of file dblink.c.

1866 {
1867  /* This is now just an alias for the built-in function current_query() */
1868  PG_RETURN_DATUM(current_query(fcinfo));
1869 }
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 350 of file dblink.c.

351 {
352  char *conname = NULL;
353  remoteConn *rconn = NULL;
354  PGconn *conn = NULL;
355 
356  dblink_init();
357 
358  if (PG_NARGS() == 1)
359  {
360  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
361  rconn = getConnectionByName(conname);
362  if (rconn)
363  conn = rconn->conn;
364  }
365  else
366  conn = pconn->conn;
367 
368  if (!conn)
369  dblink_conn_not_avail(conname);
370 
372  if (rconn)
373  {
374  deleteConnection(conname);
375  pfree(rconn);
376  }
377  else
378  pconn->conn = NULL;
379 
381 }

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 1374 of file dblink.c.

1375 {
1376  char *msg;
1377  PGconn *conn;
1378 
1379  dblink_init();
1381 
1382  msg = PQerrorMessage(conn);
1383  if (msg == NULL || msg[0] == '\0')
1385  else
1387 }

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 1394 of file dblink.c.

1395 {
1396  text *volatile sql_cmd_status = NULL;
1397  PGconn *volatile conn = NULL;
1398  volatile bool freeconn = false;
1399 
1400  dblink_init();
1401 
1402  PG_TRY();
1403  {
1404  PGresult *res = NULL;
1405  char *sql = NULL;
1406  char *conname = NULL;
1407  bool fail = true; /* default to backward compatible behavior */
1408 
1409  if (PG_NARGS() == 3)
1410  {
1411  /* must be text,text,bool */
1412  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
1414  fail = PG_GETARG_BOOL(2);
1415  dblink_get_conn(conname, &conn, &conname, &freeconn);
1416  }
1417  else if (PG_NARGS() == 2)
1418  {
1419  /* might be text,text or text,bool */
1420  if (get_fn_expr_argtype(fcinfo->flinfo, 1) == BOOLOID)
1421  {
1423  fail = PG_GETARG_BOOL(1);
1424  conn = pconn->conn;
1425  }
1426  else
1427  {
1428  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
1430  dblink_get_conn(conname, &conn, &conname, &freeconn);
1431  }
1432  }
1433  else if (PG_NARGS() == 1)
1434  {
1435  /* must be single text argument */
1436  conn = pconn->conn;
1438  }
1439  else
1440  /* shouldn't happen */
1441  elog(ERROR, "wrong number of arguments");
1442 
1443  if (!conn)
1444  dblink_conn_not_avail(conname);
1445 
1446  res = PQexec(conn, sql);
1447  if (!res ||
1450  {
1451  dblink_res_error(conn, conname, res, fail,
1452  "while executing command");
1453 
1454  /*
1455  * and save a copy of the command status string to return as our
1456  * result tuple
1457  */
1458  sql_cmd_status = cstring_to_text("ERROR");
1459  }
1460  else if (PQresultStatus(res) == PGRES_COMMAND_OK)
1461  {
1462  /*
1463  * and save a copy of the command status string to return as our
1464  * result tuple
1465  */
1466  sql_cmd_status = cstring_to_text(PQcmdStatus(res));
1467  PQclear(res);
1468  }
1469  else
1470  {
1471  PQclear(res);
1472  ereport(ERROR,
1473  (errcode(ERRCODE_S_R_E_PROHIBITED_SQL_STATEMENT_ATTEMPTED),
1474  errmsg("statement returning results not allowed")));
1475  }
1476  }
1477  PG_FINALLY();
1478  {
1479  /* if needed, close the connection to the database */
1480  if (freeconn)
1482  }
1483  PG_END_TRY();
1484 
1485  PG_RETURN_TEXT_P(sql_cmd_status);
1486 }
#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:3674
@ 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 1936 of file dblink.c.

1937 {
1938  List *options_list = untransformRelOptions(PG_GETARG_DATUM(0));
1939  Oid context = PG_GETARG_OID(1);
1940  ListCell *cell;
1941 
1942  static const PQconninfoOption *options = NULL;
1943 
1944  /*
1945  * Get list of valid libpq options.
1946  *
1947  * To avoid unnecessary work, we get the list once and use it throughout
1948  * the lifetime of this backend process. We don't need to care about
1949  * memory context issues, because PQconndefaults allocates with malloc.
1950  */
1951  if (!options)
1952  {
1953  options = PQconndefaults();
1954  if (!options) /* assume reason for failure is OOM */
1955  ereport(ERROR,
1956  (errcode(ERRCODE_FDW_OUT_OF_MEMORY),
1957  errmsg("out of memory"),
1958  errdetail("Could not get libpq's default connection options.")));
1959  }
1960 
1961  /* Validate each supplied option. */
1962  foreach(cell, options_list)
1963  {
1964  DefElem *def = (DefElem *) lfirst(cell);
1965 
1966  if (!is_valid_dblink_option(options, def->defname, context))
1967  {
1968  /*
1969  * Unknown option, or invalid option for the context specified, so
1970  * complain about it. Provide a hint with a valid option that
1971  * looks similar, if there is one.
1972  */
1973  const PQconninfoOption *opt;
1974  const char *closest_match;
1976  bool has_valid_options = false;
1977 
1979  for (opt = options; opt->keyword; opt++)
1980  {
1981  if (is_valid_dblink_option(options, opt->keyword, context))
1982  {
1983  has_valid_options = true;
1985  }
1986  }
1987 
1988  closest_match = getClosestMatch(&match_state);
1989  ereport(ERROR,
1990  (errcode(ERRCODE_FDW_OPTION_NAME_NOT_FOUND),
1991  errmsg("invalid option \"%s\"", def->defname),
1992  has_valid_options ? closest_match ?
1993  errhint("Perhaps you meant the option \"%s\".",
1994  closest_match) : 0 :
1995  errhint("There are no valid options in this context.")));
1996  }
1997  }
1998 
1999  PG_RETURN_VOID();
2000 }
int errhint(const char *fmt,...)
Definition: elog.c:1316
PQconninfoOption * PQconndefaults(void)
Definition: fe-connect.c:1778
#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
struct parser_state match_state[5]
#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:802
Definition: pg_list.h:54
const char * getClosestMatch(ClosestMatchState *state)
Definition: varlena.c:6201
void initClosestMatch(ClosestMatchState *state, const char *source, int max_d)
Definition: varlena.c:6146
void updateClosestMatch(ClosestMatchState *state, const char *candidate)
Definition: varlena.c:6166

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

◆ dblink_fetch()

Datum dblink_fetch ( PG_FUNCTION_ARGS  )

Definition at line 568 of file dblink.c.

569 {
570  PGresult *res = NULL;
571  char *conname = NULL;
572  remoteConn *rconn = NULL;
573  PGconn *conn = NULL;
575  char *curname = NULL;
576  int howmany = 0;
577  bool fail = true; /* default to backward compatible */
578 
579  prepTuplestoreResult(fcinfo);
580 
581  dblink_init();
582 
583  if (PG_NARGS() == 4)
584  {
585  /* text,text,int,bool */
586  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
587  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
588  howmany = PG_GETARG_INT32(2);
589  fail = PG_GETARG_BOOL(3);
590 
591  rconn = getConnectionByName(conname);
592  if (rconn)
593  conn = rconn->conn;
594  }
595  else if (PG_NARGS() == 3)
596  {
597  /* text,text,int or text,int,bool */
598  if (get_fn_expr_argtype(fcinfo->flinfo, 2) == BOOLOID)
599  {
600  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
601  howmany = PG_GETARG_INT32(1);
602  fail = PG_GETARG_BOOL(2);
603  conn = pconn->conn;
604  }
605  else
606  {
607  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
608  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
609  howmany = PG_GETARG_INT32(2);
610 
611  rconn = getConnectionByName(conname);
612  if (rconn)
613  conn = rconn->conn;
614  }
615  }
616  else if (PG_NARGS() == 2)
617  {
618  /* text,int */
619  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
620  howmany = PG_GETARG_INT32(1);
621  conn = pconn->conn;
622  }
623 
624  if (!conn)
625  dblink_conn_not_avail(conname);
626 
628  appendStringInfo(&buf, "FETCH %d FROM %s", howmany, curname);
629 
630  /*
631  * Try to execute the query. Note that since libpq uses malloc, the
632  * PGresult will be long-lived even though we are still in a short-lived
633  * memory context.
634  */
635  res = PQexec(conn, buf.data);
636  if (!res ||
639  {
640  dblink_res_error(conn, conname, res, fail,
641  "while fetching from cursor \"%s\"", curname);
642  return (Datum) 0;
643  }
644  else if (PQresultStatus(res) == PGRES_COMMAND_OK)
645  {
646  /* cursor does not exist - closed already or bad name */
647  PQclear(res);
648  ereport(ERROR,
649  (errcode(ERRCODE_INVALID_CURSOR_NAME),
650  errmsg("cursor \"%s\" does not exist", curname)));
651  }
652 
653  materializeResult(fcinfo, conn, res);
654  return (Datum) 0;
655 }
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 186 of file dblink.c.

188 {
189  remoteConn *rconn = getConnectionByName(conname_or_str);
190  PGconn *conn;
191  char *conname;
192  bool freeconn;
193 
194  if (rconn)
195  {
196  conn = rconn->conn;
197  conname = conname_or_str;
198  freeconn = false;
199  }
200  else
201  {
202  const char *connstr;
203 
204  connstr = get_connect_string(conname_or_str);
205  if (connstr == NULL)
206  connstr = conname_or_str;
208 
209  /* first time, allocate or get the custom wait event */
210  if (dblink_we_get_conn == 0)
211  dblink_we_get_conn = WaitEventExtensionNew("DblinkGetConnect");
212 
213  /* OK to make connection */
215 
216  if (PQstatus(conn) == CONNECTION_BAD)
217  {
218  char *msg = pchomp(PQerrorMessage(conn));
219 
221  ereport(ERROR,
222  (errcode(ERRCODE_SQLCLIENT_UNABLE_TO_ESTABLISH_SQLCONNECTION),
223  errmsg("could not establish connection"),
224  errdetail_internal("%s", msg)));
225  }
229  freeconn = true;
230  conname = NULL;
231  }
232 
233  *conn_p = conn;
234  *conname_p = conname;
235  *freeconn_p = freeconn;
236 }

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

Referenced by dblink_exec(), and dblink_record_internal().

◆ dblink_get_connections()

Datum dblink_get_connections ( PG_FUNCTION_ARGS  )

Definition at line 1282 of file dblink.c.

1283 {
1284  HASH_SEQ_STATUS status;
1285  remoteConnHashEnt *hentry;
1286  ArrayBuildState *astate = NULL;
1287 
1288  if (remoteConnHash)
1289  {
1290  hash_seq_init(&status, remoteConnHash);
1291  while ((hentry = (remoteConnHashEnt *) hash_seq_search(&status)) != NULL)
1292  {
1293  /* stash away current value */
1294  astate = accumArrayResult(astate,
1295  CStringGetTextDatum(hentry->name),
1296  false, TEXTOID, CurrentMemoryContext);
1297  }
1298  }
1299 
1300  if (astate)
1303  else
1304  PG_RETURN_NULL();
1305 }
ArrayBuildState * accumArrayResult(ArrayBuildState *astate, Datum dvalue, bool disnull, Oid element_type, MemoryContext rcontext)
Definition: arrayfuncs.c:5332
Datum makeArrayResult(ArrayBuildState *astate, MemoryContext rcontext)
Definition: arrayfuncs.c:5402
#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

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

◆ dblink_get_named_conn()

static PGconn* dblink_get_named_conn ( const char *  conname)
static

Definition at line 239 of file dblink.c.

240 {
241  remoteConn *rconn = getConnectionByName(conname);
242 
243  if (rconn)
244  return rconn->conn;
245 
246  dblink_conn_not_avail(conname);
247  return NULL; /* keep compiler quiet */
248 }

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 1883 of file dblink.c.

1884 {
1885  PGconn *conn;
1886  PGnotify *notify;
1887  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
1888 
1889  dblink_init();
1890  if (PG_NARGS() == 1)
1892  else
1893  conn = pconn->conn;
1894 
1895  InitMaterializedSRF(fcinfo, 0);
1896 
1898  while ((notify = PQnotifies(conn)) != NULL)
1899  {
1901  bool nulls[DBLINK_NOTIFY_COLS];
1902 
1903  memset(values, 0, sizeof(values));
1904  memset(nulls, 0, sizeof(nulls));
1905 
1906  if (notify->relname != NULL)
1907  values[0] = CStringGetTextDatum(notify->relname);
1908  else
1909  nulls[0] = true;
1910 
1911  values[1] = Int32GetDatum(notify->be_pid);
1912 
1913  if (notify->extra != NULL)
1914  values[2] = CStringGetTextDatum(notify->extra);
1915  else
1916  nulls[2] = true;
1917 
1918  tuplestore_putvalues(rsinfo->setResult, rsinfo->setDesc, values, nulls);
1919 
1920  PQfreemem(notify);
1922  }
1923 
1924  return (Datum) 0;
1925 }
static Datum values[MAXATTR]
Definition: bootstrap.c:156
void PQfreemem(void *ptr)
Definition: fe-exec.c:3954
PGnotify * PQnotifies(PGconn *conn)
Definition: fe-exec.c:2633
int PQconsumeInput(PGconn *conn)
Definition: fe-exec.c:1957
void InitMaterializedSRF(FunctionCallInfo fcinfo, bits32 flags)
Definition: funcapi.c:76
static Datum Int32GetDatum(int32 X)
Definition: postgres.h:212
TupleDesc setDesc
Definition: execnodes.h:333
Tuplestorestate * setResult
Definition: execnodes.h:332
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, const Datum *values, const 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 1497 of file dblink.c.

1498 {
1499  int16 indnkeyatts;
1500  char **results;
1501  FuncCallContext *funcctx;
1502  int32 call_cntr;
1503  int32 max_calls;
1504  AttInMetadata *attinmeta;
1505  MemoryContext oldcontext;
1506 
1507  /* stuff done only on the first call of the function */
1508  if (SRF_IS_FIRSTCALL())
1509  {
1510  Relation rel;
1511  TupleDesc tupdesc;
1512 
1513  /* create a function context for cross-call persistence */
1514  funcctx = SRF_FIRSTCALL_INIT();
1515 
1516  /*
1517  * switch to memory context appropriate for multiple function calls
1518  */
1519  oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
1520 
1521  /* open target relation */
1523 
1524  /* get the array of attnums */
1525  results = get_pkey_attnames(rel, &indnkeyatts);
1526 
1528 
1529  /*
1530  * need a tuple descriptor representing one INT and one TEXT column
1531  */
1532  tupdesc = CreateTemplateTupleDesc(2);
1533  TupleDescInitEntry(tupdesc, (AttrNumber) 1, "position",
1534  INT4OID, -1, 0);
1535  TupleDescInitEntry(tupdesc, (AttrNumber) 2, "colname",
1536  TEXTOID, -1, 0);
1537 
1538  /*
1539  * Generate attribute metadata needed later to produce tuples from raw
1540  * C strings
1541  */
1542  attinmeta = TupleDescGetAttInMetadata(tupdesc);
1543  funcctx->attinmeta = attinmeta;
1544 
1545  if ((results != NULL) && (indnkeyatts > 0))
1546  {
1547  funcctx->max_calls = indnkeyatts;
1548 
1549  /* got results, keep track of them */
1550  funcctx->user_fctx = results;
1551  }
1552  else
1553  {
1554  /* fast track when no results */
1555  MemoryContextSwitchTo(oldcontext);
1556  SRF_RETURN_DONE(funcctx);
1557  }
1558 
1559  MemoryContextSwitchTo(oldcontext);
1560  }
1561 
1562  /* stuff done on every call of the function */
1563  funcctx = SRF_PERCALL_SETUP();
1564 
1565  /*
1566  * initialize per-call variables
1567  */
1568  call_cntr = funcctx->call_cntr;
1569  max_calls = funcctx->max_calls;
1570 
1571  results = (char **) funcctx->user_fctx;
1572  attinmeta = funcctx->attinmeta;
1573 
1574  if (call_cntr < max_calls) /* do when there is more left to send */
1575  {
1576  char **values;
1577  HeapTuple tuple;
1578  Datum result;
1579 
1580  values = palloc_array(char *, 2);
1581  values[0] = psprintf("%d", call_cntr + 1);
1582  values[1] = results[call_cntr];
1583 
1584  /* build the tuple */
1585  tuple = BuildTupleFromCStrings(attinmeta, values);
1586 
1587  /* make the tuple into a datum */
1588  result = HeapTupleGetDatum(tuple);
1589 
1590  SRF_RETURN_NEXT(funcctx, result);
1591  }
1592  else
1593  {
1594  /* do when there is no more left */
1595  SRF_RETURN_DONE(funcctx);
1596  }
1597 }
int16 AttrNumber
Definition: attnum.h:21
signed short int16
Definition: c.h:482
HeapTuple BuildTupleFromCStrings(AttInMetadata *attinmeta, char **values)
Definition: execTuples.c:2136
AttInMetadata * TupleDescGetAttInMetadata(TupleDesc tupdesc)
Definition: execTuples.c:2087
#define palloc_array(type, count)
Definition: fe_memutils.h:64
#define SRF_IS_FIRSTCALL()
Definition: funcapi.h:304
#define SRF_PERCALL_SETUP()
Definition: funcapi.h:308
#define SRF_RETURN_NEXT(_funcctx, _result)
Definition: funcapi.h:310
#define SRF_FIRSTCALL_INIT()
Definition: funcapi.h:306
static Datum HeapTupleGetDatum(const HeapTupleData *tuple)
Definition: funcapi.h:230
#define SRF_RETURN_DONE(_funcctx)
Definition: funcapi.h:328
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:67
void TupleDescInitEntry(TupleDesc desc, AttrNumber attributeNumber, const char *attributeName, Oid oidtypeid, int32 typmod, int attdim)
Definition: tupdesc.c:605

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 694 of file dblink.c.

695 {
696  return dblink_record_internal(fcinfo, true);
697 }

References dblink_record_internal().

◆ dblink_init()

◆ dblink_is_busy()

Datum dblink_is_busy ( PG_FUNCTION_ARGS  )

Definition at line 1317 of file dblink.c.

1318 {
1319  PGconn *conn;
1320 
1321  dblink_init();
1323 
1326 }
int PQisBusy(PGconn *conn)
Definition: fe-exec.c:2004
#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 388 of file dblink.c.

389 {
390  PGresult *res = NULL;
391  PGconn *conn;
392  char *curname = NULL;
393  char *sql = NULL;
394  char *conname = NULL;
396  remoteConn *rconn = NULL;
397  bool fail = true; /* default to backward compatible behavior */
398 
399  dblink_init();
401 
402  if (PG_NARGS() == 2)
403  {
404  /* text,text */
405  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
407  rconn = pconn;
408  }
409  else if (PG_NARGS() == 3)
410  {
411  /* might be text,text,text or text,text,bool */
412  if (get_fn_expr_argtype(fcinfo->flinfo, 2) == BOOLOID)
413  {
414  curname = text_to_cstring(PG_GETARG_TEXT_PP(0));
416  fail = PG_GETARG_BOOL(2);
417  rconn = pconn;
418  }
419  else
420  {
421  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
422  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
424  rconn = getConnectionByName(conname);
425  }
426  }
427  else if (PG_NARGS() == 4)
428  {
429  /* text,text,text,bool */
430  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
431  curname = text_to_cstring(PG_GETARG_TEXT_PP(1));
433  fail = PG_GETARG_BOOL(3);
434  rconn = getConnectionByName(conname);
435  }
436 
437  if (!rconn || !rconn->conn)
438  dblink_conn_not_avail(conname);
439 
440  conn = rconn->conn;
441 
442  /* If we are not in a transaction, start one */
444  {
445  res = PQexec(conn, "BEGIN");
447  dblink_res_internalerror(conn, res, "begin error");
448  PQclear(res);
449  rconn->newXactForCursor = true;
450 
451  /*
452  * Since transaction state was IDLE, we force cursor count to
453  * initially be 0. This is needed as a previous ABORT might have wiped
454  * out our transaction without maintaining the cursor count for us.
455  */
456  rconn->openCursorCount = 0;
457  }
458 
459  /* if we started a transaction, increment cursor count */
460  if (rconn->newXactForCursor)
461  (rconn->openCursorCount)++;
462 
463  appendStringInfo(&buf, "DECLARE %s CURSOR FOR %s", curname, sql);
464  res = PQexec(conn, buf.data);
466  {
467  dblink_res_error(conn, conname, res, fail,
468  "while opening cursor \"%s\"", curname);
470  }
471 
472  PQclear(res);
474 }
PGTransactionStatusType PQtransactionStatus(const PGconn *conn)
Definition: fe-connect.c:7203
@ 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 662 of file dblink.c.

663 {
664  return dblink_record_internal(fcinfo, false);
665 }

References dblink_record_internal().

◆ dblink_record_internal()

static Datum dblink_record_internal ( FunctionCallInfo  fcinfo,
bool  is_async 
)
static

Definition at line 700 of file dblink.c.

701 {
702  PGconn *volatile conn = NULL;
703  volatile bool freeconn = false;
704 
705  prepTuplestoreResult(fcinfo);
706 
707  dblink_init();
708 
709  PG_TRY();
710  {
711  char *sql = NULL;
712  char *conname = NULL;
713  bool fail = true; /* default to backward compatible */
714 
715  if (!is_async)
716  {
717  if (PG_NARGS() == 3)
718  {
719  /* text,text,bool */
720  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
722  fail = PG_GETARG_BOOL(2);
723  dblink_get_conn(conname, &conn, &conname, &freeconn);
724  }
725  else if (PG_NARGS() == 2)
726  {
727  /* text,text or text,bool */
728  if (get_fn_expr_argtype(fcinfo->flinfo, 1) == BOOLOID)
729  {
731  fail = PG_GETARG_BOOL(1);
732  conn = pconn->conn;
733  }
734  else
735  {
736  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
738  dblink_get_conn(conname, &conn, &conname, &freeconn);
739  }
740  }
741  else if (PG_NARGS() == 1)
742  {
743  /* text */
744  conn = pconn->conn;
746  }
747  else
748  /* shouldn't happen */
749  elog(ERROR, "wrong number of arguments");
750  }
751  else /* is_async */
752  {
753  /* get async result */
754  conname = text_to_cstring(PG_GETARG_TEXT_PP(0));
755 
756  if (PG_NARGS() == 2)
757  {
758  /* text,bool */
759  fail = PG_GETARG_BOOL(1);
760  conn = dblink_get_named_conn(conname);
761  }
762  else if (PG_NARGS() == 1)
763  {
764  /* text */
765  conn = dblink_get_named_conn(conname);
766  }
767  else
768  /* shouldn't happen */
769  elog(ERROR, "wrong number of arguments");
770  }
771 
772  if (!conn)
773  dblink_conn_not_avail(conname);
774 
775  if (!is_async)
776  {
777  /* synchronous query, use efficient tuple collection method */
778  materializeQueryResult(fcinfo, conn, conname, sql, fail);
779  }
780  else
781  {
782  /* async result retrieval, do it the old way */
784 
785  /* NULL means we're all done with the async results */
786  if (res)
787  {
790  {
791  dblink_res_error(conn, conname, res, fail,
792  "while executing query");
793  /* if fail isn't set, we'll return an empty query result */
794  }
795  else
796  {
797  materializeResult(fcinfo, conn, res);
798  }
799  }
800  }
801  }
802  PG_FINALLY();
803  {
804  /* if needed, close the connection to the database */
805  if (freeconn)
807  }
808  PG_END_TRY();
809 
810  return (Datum) 0;
811 }
PGresult * PQgetResult(PGconn *conn)
Definition: fe-exec.c:2035
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 2705 of file dblink.c.

2707 {
2708  int level;
2709  char *pg_diag_sqlstate = PQresultErrorField(res, PG_DIAG_SQLSTATE);
2710  char *pg_diag_message_primary = PQresultErrorField(res, PG_DIAG_MESSAGE_PRIMARY);
2711  char *pg_diag_message_detail = PQresultErrorField(res, PG_DIAG_MESSAGE_DETAIL);
2712  char *pg_diag_message_hint = PQresultErrorField(res, PG_DIAG_MESSAGE_HINT);
2713  char *pg_diag_context = PQresultErrorField(res, PG_DIAG_CONTEXT);
2714  int sqlstate;
2715  char *message_primary;
2716  char *message_detail;
2717  char *message_hint;
2718  char *message_context;
2719  va_list ap;
2720  char dblink_context_msg[512];
2721 
2722  if (fail)
2723  level = ERROR;
2724  else
2725  level = NOTICE;
2726 
2727  if (pg_diag_sqlstate)
2728  sqlstate = MAKE_SQLSTATE(pg_diag_sqlstate[0],
2729  pg_diag_sqlstate[1],
2730  pg_diag_sqlstate[2],
2731  pg_diag_sqlstate[3],
2732  pg_diag_sqlstate[4]);
2733  else
2734  sqlstate = ERRCODE_CONNECTION_FAILURE;
2735 
2736  message_primary = xpstrdup(pg_diag_message_primary);
2737  message_detail = xpstrdup(pg_diag_message_detail);
2738  message_hint = xpstrdup(pg_diag_message_hint);
2739  message_context = xpstrdup(pg_diag_context);
2740 
2741  /*
2742  * If we don't get a message from the PGresult, try the PGconn. This is
2743  * needed because for connection-level failures, PQexec may just return
2744  * NULL, not a PGresult at all.
2745  */
2746  if (message_primary == NULL)
2747  message_primary = pchomp(PQerrorMessage(conn));
2748 
2749  /*
2750  * Now that we've copied all the data we need out of the PGresult, it's
2751  * safe to free it. We must do this to avoid PGresult leakage. We're
2752  * leaking all the strings too, but those are in palloc'd memory that will
2753  * get cleaned up eventually.
2754  */
2755  PQclear(res);
2756 
2757  /*
2758  * Format the basic errcontext string. Below, we'll add on something
2759  * about the connection name. That's a violation of the translatability
2760  * guidelines about constructing error messages out of parts, but since
2761  * there's no translation support for dblink, there's no need to worry
2762  * about that (yet).
2763  */
2764  va_start(ap, fmt);
2765  vsnprintf(dblink_context_msg, sizeof(dblink_context_msg), fmt, ap);
2766  va_end(ap);
2767 
2768  ereport(level,
2769  (errcode(sqlstate),
2770  (message_primary != NULL && message_primary[0] != '\0') ?
2771  errmsg_internal("%s", message_primary) :
2772  errmsg("could not obtain message string for remote error"),
2773  message_detail ? errdetail_internal("%s", message_detail) : 0,
2774  message_hint ? errhint("%s", message_hint) : 0,
2775  message_context ? (errcontext("%s", message_context)) : 0,
2776  conname ?
2777  (errcontext("%s on dblink connection named \"%s\"",
2778  dblink_context_msg, conname)) :
2779  (errcontext("%s on unnamed dblink connection",
2780  dblink_context_msg))));
2781 }
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:3388
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,
const char *  connstr 
)
static

Definition at line 2607 of file dblink.c.

2608 {
2609  /* Superuser bypasses security check */
2610  if (superuser())
2611  return;
2612 
2613  /* If password was used to connect, make sure it was one provided */
2615  return;
2616 
2617 #ifdef ENABLE_GSS
2618  /* If GSSAPI creds used to connect, make sure it was one delegated */
2620  return;
2621 #endif
2622 
2623  /* Otherwise, fail out */
2625  if (rconn)
2626  pfree(rconn);
2627 
2628  ereport(ERROR,
2629  (errcode(ERRCODE_S_R_E_PROHIBITED_SQL_STATEMENT_ATTEMPTED),
2630  errmsg("password or GSSAPI delegated credentials required"),
2631  errdetail("Non-superusers may only connect using credentials they provide, eg: password in connection string or delegated GSSAPI credentials"),
2632  errhint("Ensure provided credentials match target server's authentication method.")));
2633 }
int PQconnectionUsedPassword(const PGconn *conn)
Definition: fe-connect.c:7314
int PQconnectionUsedGSSAPI(const PGconn *conn)
Definition: fe-connect.c:7325

References be_gssapi_get_delegation(), conn, connstr, dblink_connstr_has_pw(), ereport, errcode(), errdetail(), errhint(), errmsg(), ERROR, libpqsrv_disconnect(), MyProcPort, pfree(), PQconnectionUsedGSSAPI(), PQconnectionUsedPassword(), and superuser().

Referenced by dblink_connect(), and dblink_get_conn().

◆ dblink_send_query()

Datum dblink_send_query ( PG_FUNCTION_ARGS  )

Definition at line 669 of file dblink.c.

670 {
671  PGconn *conn;
672  char *sql;
673  int retval;
674 
675  if (PG_NARGS() == 2)
676  {
679  }
680  else
681  /* shouldn't happen */
682  elog(ERROR, "wrong number of arguments");
683 
684  /* async query send */
685  retval = PQsendQuery(conn, sql);
686  if (retval != 1)
687  elog(NOTICE, "could not send query: %s", pchomp(PQerrorMessage(conn)));
688 
689  PG_RETURN_INT32(retval);
690 }
int PQsendQuery(PGconn *conn, const char *query)
Definition: fe-exec.c:1422

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 2581 of file dblink.c.

2582 {
2583  remoteConnHashEnt *hentry;
2584  bool found;
2585  char *key;
2586 
2587  if (!remoteConnHash)
2589 
2590  key = pstrdup(name);
2591  truncate_identifier(key, strlen(key), false);
2593  key, HASH_REMOVE, &found);
2594 
2595  if (!hentry)
2596  ereport(ERROR,
2597  (errcode(ERRCODE_UNDEFINED_OBJECT),
2598  errmsg("undefined connection name")));
2599 }
@ 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_allocbuf(), _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_getroot(), _bt_gettrueroot(), _bt_insert_parent(), _bt_insertonpg(), _bt_mark_page_halfdead(), _bt_mark_scankey_required(), _bt_moveright(), _bt_newlevel(), _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_Const(), _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(), AddRelationNewConstraints(), 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(), AdjustNotNullInheritance(), AdjustNotNullInheritance1(), 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(), 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_Parallel(), AtEOXact_cleanup(), AtEOXact_HashTables(), AtEOXact_Parallel(), AtEOXact_Snapshot(), ATExecAddColumn(), ATExecAddConstraint(), ATExecAddIndexConstraint(), ATExecAddOf(), ATExecAlterColumnType(), ATExecChangeOwner(), ATExecCmd(), ATExecDetachPartition(), ATExecDropColumn(), ATExecDropExpression(), ATExecDropNotNull(), ATExecDropOf(), ATExecForceNoForceRowSecurity(), ATExecReplicaIdentity(), ATExecSetIdentity(), ATExecSetRelOptions(), ATExecSetRowSecurity(), ATParseTransformCmd(), ATPostAlterTypeCleanup(), ATPostAlterTypeParse(), ATPrepCmd(), ATRewriteTable(), ATSimplePermissions(), AtStart_GUC(), AtSubCleanup_Portals(), AttachSession(), attnumAttName(), attnumCollationId(), attnumTypeId(), AttrDefaultFetch(), autoinc(), AutoVacuumUpdateCostLimit(), AutoVacWorkerMain(), AuxiliaryProcessMain(), AuxiliaryProcKill(), BackgroundWorkerMain(), BackgroundWorkerStateChange(), basic_archive_file_internal(), be_gssapi_write(), be_lo_close(), be_lo_open(), be_tls_get_certificate_hash(), before_stmt_triggers_fired(), begin_remote_xact(), BeginInternalSubTransaction(), BeginTransactionBlock(), BgBufferSync(), binary_decode(), binary_encode(), binary_upgrade_create_empty_extension(), binary_upgrade_logical_slot_has_caught_up(), 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(), 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(), CheckBufferIsPinnedOnce(), CheckConstraintFetch(), CheckDateTokenTable(), CheckForBufferLeaks(), CheckForLocalBufferLeaks(), CheckFunctionValidatorAccess(), CheckIndexCompatible(), CheckMyDatabase(), CheckPointLogicalRewriteHeap(), CheckPointReplicationSlots(), CheckPointSnapBuild(), CheckRecoveryConsistency(), CheckRelationLockedByMe(), CheckSASLAuth(), checkSplitConditions(), checkTargetlistEntrySQL92(), CheckValidResultRel(), CheckVarSlotCompatibility(), checkWellFormedRecursion(), checkWellFormedRecursionWalker(), checkWellFormedSelectStmt(), ChoosePortalStrategy(), ClassifyUtilityCommandAsReadOnly(), clause_selectivity_ext(), CleanupBackupHistory(), CleanUpLock(), CleanupProcSignalState(), CleanupSubTransaction(), CleanupTempFiles(), CleanupTransaction(), clear_subscription_skip_lsn(), clog_redo(), CloneFkReferenced(), CloneFkReferencing(), CloneRowTriggersToPartition(), ClosePipeStream(), closerel(), CloseTransientFile(), coerce_type(), CollationIsVisibleExt(), 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(), ConversionIsVisibleExt(), 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(), database_is_invalid_oid(), dataBeginPlaceToPageLeaf(), datum_image_eq(), datum_image_hash(), datum_to_jsonb_internal(), datum_write(), datumGetSize(), dbase_redo(), dblink_exec(), dblink_record_internal(), dblink_send_query(), DCH_cache_getnew(), DeadLockCheck(), DeadLockCheckRecurse(), DecodeDateTime(), 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_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(), dropconstraint_internal(), 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(), EncodeSpecialInterval(), 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(), EventTriggerOnLogin(), 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(), ExecEvalJsonConstructor(), 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(), ExecPushExprSetupSteps(), 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(), extractNotNullColumn(), FastPathGetRelationLockEntry(), fetch_att(), fetch_finfo_record(), fetch_fp_info(), fetch_remote_table_info(), fetch_statentries_for_relation(), FileAccess(), FileClose(), FileFallocate(), fileGetOptions(), FilePrefetch(), FileRead(), FileSize(), FileSync(), FileTruncate(), FileWrite(), FileWriteback(), FileZero(), 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(), ForgetManyTestResources(), 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(), FunctionIsVisibleExt(), g_cube_distance(), 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_database_list(), 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_json_agg_constructor(), get_json_constructor(), 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_method(), 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_helper(), 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(), getJsonEncodingConst(), getJsonPathItem(), GetLatestSnapshot(), getlen(), GetLocalVictimBuffer(), 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(), GetWaitEventExtensionIdentifier(), 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(), handle_streamed_transaction(), 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_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_avg_accum_inv(), interval_avg_deserialize(), interval_avg_serialize(), interval_in(), intervaltypmodleastfield(), intervaltypmodout(), intset_add_member(), intset_update_upper(), inv_getsize(), inv_read(), inv_truncate(), inv_write(), InvalidateAttoptCacheCallback(), InvalidateBuffer(), InvalidateOprCacheCallBack(), InvalidateShippableCacheCallback(), InvalidateTableSpaceCacheCallback(), IOContextForStrategy(), 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_worker(), json_errdetail(), json_errsave_error(), json_object_agg_transfn_worker(), json_typeof(), jsonb_agg_transfn_worker(), jsonb_get_element(), jsonb_hash(), jsonb_hash_extended(), jsonb_in_scalar(), jsonb_object_agg_transfn_worker(), 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_optimize_module(), llvm_pg_func(), llvm_pg_var_func_type(), llvm_pg_var_type(), llvm_recreate_llvm_context(), llvm_resolve_symbol(), llvm_session_initialize(), llvm_set_target(), llvm_shutdown(), 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_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(), LogicalReplicationSlotHasPendingWal(), 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(), 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(), makeIntervalAggState(), 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(), OpclassIsVisibleExt(), OpenPipeStream(), OpenTemporaryFileInTablespace(), OpenTransientFilePerm(), operator_predicate_proof(), OperatorCreate(), OperatorIsVisibleExt(), OpFamilyCacheLookup(), OpfamilyIsVisibleExt(), 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_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_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_input_error_info(), 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_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_subscription(), pg_stat_get_wal_receiver(), pg_stat_statements_info(), pg_stat_statements_internal(), pg_timezone_abbrevs(), 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_get_io_context_name(), pgstat_get_io_object_name(), pgstat_get_io_op_index(), pgstat_get_io_time_index(), 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(), 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_init(), 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(), preprocessNamespacePath(), PreventInTransactionBlock(), print_function_arguments(), printJsonPathItem(), printsimple(), privilege_to_string(), proc_exit(), proc_exit_prepare(), ProcArrayApplyRecoveryInfo(), ProcArraySetReplicationSlotXmin(), ProcedureCreate(), process_equivalence(), process_matched_tle(), process_subquery_nestloop_params(), process_syncing_tables(), ProcessCatchupInterrupt(), ProcessCommittedInvalidationMessages(), ProcessIncomingNotify(), processIndirection(), ProcessRecoveryConflictInterrupt(), ProcessStandbyHSFeedbackMessage(), ProcessStandbyReplyMessage(), ProcessSyncRequests(), ProcessUtilitySlow(), ProcessWalSndrMessage(), ProcKill(), 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(), record_image_cmp(), recordExtObjInitPriv(), RecordKnownAssignedTransactionIds(), RecordTransactionAbort(), RecordTransactionAbortPrepared(), RecordTransactionCommit(), recovery_create_dbdir(), recoveryApplyDelay(), 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(), RegisterBackgroundWorker(), 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(), RelationAddBlocks(), RelationBuildDesc(), RelationBuildLocalRelation(), RelationBuildPartitionDesc(), RelationBuildPartitionKey(), RelationBuildPublicationDesc(), RelationBuildRowSecurity(), RelationBuildTriggers(), RelationBuildTupleDesc(), RelationCacheInitializePhase3(), RelationClearMissing(), RelationClearRelation(), RelationCreateStorage(), RelationFindReplTupleByIndex(), RelationFindReplTupleSeq(), RelationForgetRelation(), RelationGetBufferForTuple(), RelationGetExclusionInfo(), RelationGetIdentityKeyBitmap(), RelationGetIndexAttrBitmap(), relationHasPrimaryKey(), RelationInitIndexAccessInfo(), RelationInitPhysicalAddr(), RelationInitTableAccessMethod(), RelationIsVisibleExt(), RelationMapRemoveMapping(), RelationMapUpdateMap(), RelationPutHeapTuple(), RelationReloadIndexInfo(), RelationSetNewRelfilenumber(), ReleaseBuffer(), ReleaseCurrentSubTransaction(), ReleaseLockIfHeld(), ReleaseLruFile(), ReleaseManyTestResource(), ReleaseSavepoint(), ReleaseString(), RelfilenumberMapInvalidateCallback(), RelidByRelfilenumber(), relmap_redo(), RememberClusterOnForRebuilding(), RememberManyTestResources(), RememberReplicaIdentityForRebuilding(), remove_rel_from_joinlist(), remove_self_joins_recurse(), 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(), ResourceOwnerEnlarge(), ResourceOwnerForget(), ResourceOwnerForgetLock(), ResourceOwnerRelease(), ResourceOwnerReleaseAll(), ResourceOwnerReleaseAllOfKind(), ResourceOwnerRemember(), ResOwnerReleaseBufferPin(), 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(), search_indexed_tlist_for_phv(), search_indexed_tlist_for_var(), 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_attnotnull(), 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(), SetDatatabaseHasLoginEventTriggers(), SetDefaultACL(), SetMatViewPopulatedState(), SetNextObjectId(), setPath(), SetReindexPending(), SetReindexProcessing(), SetRelationHasSubclass(), SetRelationNumChecks(), SetRelationRuleStatus(), SetRelationTableSpace(), Setup_AF_UNIX(), setup_firstcall(), setup_simple_rel_arrays(), SetupApplyOrSyncWorker(), SetupLockInTable(), SharedInvalBackendInit(), SharedRecordTypmodRegistryInit(), shdepChangeDep(), shdepDropOwned(), shdepLockAndCheckObject(), shdepReassignOwned(), shell_archive_file(), shell_archive_shutdown(), shm_toc_lookup(), shmem_exit(), should_apply_changes_for_rel(), 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(), 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(), StatisticsObjIsVisibleExt(), store_att_byval(), StoreAttrDefault(), StoreConstraints(), storeObjectDescription(), StorePartitionBound(), storeQueryResult(), storeRow(), StrategyGetBuffer(), stream_open_file(), StreamClose(), StreamServerPort(), 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(), SysCacheGetAttrNotNull(), 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_dsa_basic(), 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_resowner_forget_between_phases(), test_resowner_many(), test_resowner_priorities(), test_resowner_remember_between_phases(), 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(), transformCreateSchemaStmtElements(), 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(), TSConfigIsVisibleExt(), TSDictionaryIsVisibleExt(), TSParserIsVisibleExt(), tsquery_opr_selec(), tsquery_requires_match(), tsquery_rewrite_query(), tsqueryrecv(), tsquerysend(), TSTemplateIsVisibleExt(), 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(), TypeIsVisibleExt(), 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_truncate_clog(), vac_update_datfrozenxid(), vac_update_relstats(), vacuumLeafPage(), vacuumLeafRoot(), VacuumUpdateCosts(), validate_index(), validatePartitionedIndex(), varstr_abbrev_abort(), 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(), WaitEventExtensionNew(), WaitForProcSignalBarrier(), WaitForWALToBecomeAvailable(), WaitXLogInsertionsToFinish(), WalRcvWaitForStartPosition(), WalReceiverMain(), WalSndKeepalive(), window_gettupleslot(), WinGetFuncArgInFrame(), WinGetFuncArgInPartition(), WinRowsArePeers(), WinSetMarkPosition(), worker_spi_main(), 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(), XLogSendLogical(), XLogSendPhysical(), XLogWalRcvSendHSFeedback(), XLogWalRcvSendReply(), XLogWrite(), XmlTableGetValue(), and xpath_table().

◆ escape_param_str()

static char * escape_param_str ( const char *  str)
static

Definition at line 2877 of file dblink.c.

2878 {
2879  const char *cp;
2881 
2882  initStringInfo(&buf);
2883 
2884  for (cp = str; *cp; cp++)
2885  {
2886  if (*cp == '\\' || *cp == '\'')
2887  appendStringInfoChar(&buf, '\\');
2888  appendStringInfoChar(&buf, *cp);
2889  }
2890 
2891  return buf.data;
2892 }
void appendStringInfoChar(StringInfo str, char ch)
Definition: stringinfo.c:194

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 2502 of file dblink.c.

2503 {
2504  char *nspname;
2505  char *result;
2506 
2507  /* Qualify the name if not visible in search path */
2509  nspname = NULL;
2510  else
2511  nspname = get_namespace_name(rel->rd_rel->relnamespace);
2512 
2513  result = quote_qualified_identifier(nspname, RelationGetRelationName(rel));
2514 
2515  return result;
2516 }
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3348
bool RelationIsVisible(Oid relid)
Definition: namespace.c:854
#define RelationGetRelid(relation)
Definition: rel.h:504
#define RelationGetRelationName(relation)
Definition: rel.h:538
char * quote_qualified_identifier(const char *qualifier, const char *ident)
Definition: ruleutils.c:12059
Form_pg_class rd_rel
Definition: rel.h:111

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 2349 of file dblink.c.

2350 {
2351  int i;
2352 
2353  /*
2354  * Not likely a long list anyway, so just scan for the value
2355  */
2356  for (i = 0; i < pknumatts; i++)
2357  if (key == pkattnums[i])
2358  return i;
2359 
2360  return -1;
2361 }

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 2787 of file dblink.c.

2788 {
2789  ForeignServer *foreign_server = NULL;
2790  UserMapping *user_mapping;
2791  ListCell *cell;
2793  ForeignDataWrapper *fdw;
2794  AclResult aclresult;
2795  char *srvname;
2796 
2797  static const PQconninfoOption *options = NULL;
2798 
2799  initStringInfo(&buf);
2800 
2801  /*
2802  * Get list of valid libpq options.
2803  *
2804  * To avoid unnecessary work, we get the list once and use it throughout
2805  * the lifetime of this backend process. We don't need to care about
2806  * memory context issues, because PQconndefaults allocates with malloc.
2807  */
2808  if (!options)
2809  {
2810  options = PQconndefaults();
2811  if (!options) /* assume reason for failure is OOM */
2812  ereport(ERROR,
2813  (errcode(ERRCODE_FDW_OUT_OF_MEMORY),
2814  errmsg("out of memory"),
2815  errdetail("Could not get libpq's default connection options.")));
2816  }
2817 
2818  /* first gather the server connstr options */
2819  srvname = pstrdup(servername);
2820  truncate_identifier(srvname, strlen(srvname), false);
2821  foreign_server = GetForeignServerByName(srvname, true);
2822 
2823  if (foreign_server)
2824  {
2825  Oid serverid = foreign_server->serverid;
2826  Oid fdwid = foreign_server->fdwid;
2827  Oid userid = GetUserId();
2828 
2829  user_mapping = GetUserMapping(userid, serverid);
2830  fdw = GetForeignDataWrapper(fdwid);
2831 
2832  /* Check permissions, user must have usage on the server. */
2833  aclresult = object_aclcheck(ForeignServerRelationId, serverid, userid, ACL_USAGE);
2834  if (aclresult != ACLCHECK_OK)
2835  aclcheck_error(aclresult, OBJECT_FOREIGN_SERVER, foreign_server->servername);
2836 
2837  foreach(cell, fdw->options)
2838  {
2839  DefElem *def = lfirst(cell);
2840 
2841  if (is_valid_dblink_option(options, def->defname, ForeignDataWrapperRelationId))
2842  appendStringInfo(&buf, "%s='%s' ", def->defname,
2843  escape_param_str(strVal(def->arg)));
2844  }
2845 
2846  foreach(cell, foreign_server->options)
2847  {
2848  DefElem *def = lfirst(cell);
2849 
2850  if (is_valid_dblink_option(options, def->defname, ForeignServerRelationId))
2851  appendStringInfo(&buf, "%s='%s' ", def->defname,
2852  escape_param_str(strVal(def->arg)));
2853  }
2854 
2855  foreach(cell, user_mapping->options)
2856  {
2857 
2858  DefElem *def = lfirst(cell);
2859 
2860  if (is_valid_dblink_option(options, def->defname, UserMappingRelationId))
2861  appendStringInfo(&buf, "%s='%s' ", def->defname,
2862  escape_param_str(strVal(def->arg)));
2863  }
2864 
2865  return buf.data;
2866  }
2867  else
2868  return NULL;
2869 }
AclResult
Definition: acl.h:181
@ ACLCHECK_OK
Definition: acl.h:182
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:2695
AclResult object_aclcheck(Oid classid, Oid objectid, Oid roleid, AclMode mode)
Definition: aclchk.c:3843
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:509
#define ACL_USAGE
Definition: parsenodes.h:84
@ OBJECT_FOREIGN_SERVER
Definition: parsenodes.h:2113
Node * arg
Definition: parsenodes.h:803
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 2015 of file dblink.c.

2016 {
2017  Relation indexRelation;
2018  ScanKeyData skey;
2019  SysScanDesc scan;
2020  HeapTuple indexTuple;
2021  int i;
2022  char **result = NULL;
2023  TupleDesc tupdesc;
2024 
2025  /* initialize indnkeyatts to 0 in case no primary key exists */
2026  *indnkeyatts = 0;
2027 
2028  tupdesc = rel->rd_att;
2029 
2030  /* Prepare to scan pg_index for entries having indrelid = this rel. */
2031  indexRelation = table_open(IndexRelationId, AccessShareLock);
2032  ScanKeyInit(&skey,
2033  Anum_pg_index_indrelid,
2034  BTEqualStrategyNumber, F_OIDEQ,
2036 
2037  scan = systable_beginscan(indexRelation, IndexIndrelidIndexId, true,
2038  NULL, 1, &skey);
2039 
2040  while (HeapTupleIsValid(indexTuple = systable_getnext(scan)))
2041  {
2042  Form_pg_index index = (Form_pg_index) GETSTRUCT(indexTuple);
2043 
2044  /* we're only interested if it is the primary key */
2045  if (index->indisprimary)
2046  {
2047  *indnkeyatts = index->indnkeyatts;
2048  if (*indnkeyatts > 0)
2049  {
2050  result = palloc_array(char *, *indnkeyatts);
2051 
2052  for (i = 0; i < *indnkeyatts; i++)
2053  result[i] = SPI_fname(tupdesc, index->indkey.values[i]);
2054  }
2055  break;
2056  }
2057  }
2058 
2059  systable_endscan(scan);
2060  table_close(indexRelation, AccessShareLock);
2061 
2062  return result;
2063 }
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:112
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 2477 of file dblink.c.

2478 {
2479  RangeVar *relvar;
2480  Relation rel;
2481  AclResult aclresult;
2482 
2483  relvar = makeRangeVarFromNameList(textToQualifiedNameList(relname_text));
2484  rel = table_openrv(relvar, lockmode);
2485 
2486  aclresult = pg_class_aclcheck(RelationGetRelid(rel), GetUserId(),
2487  aclmode);
2488  if (aclresult != ACLCHECK_OK)
2489  aclcheck_error(aclresult, get_relkind_objtype(rel->rd_rel->relkind),
2491 
2492  return rel;
2493 }
AclResult pg_class_aclcheck(Oid table_oid, Oid roleid, AclMode mode)
Definition: aclchk.c:4046
RangeVar * makeRangeVarFromNameList(const List *names)
Definition: namespace.c:3495
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:3398

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 2206 of file dblink.c.

2207 {
2208  char *relname;
2209  TupleDesc tupdesc;
2211  int i;
2212 
2213  initStringInfo(&buf);
2214 
2215  /* get relation name including any needed schema prefix and quoting */
2217 
2218  tupdesc = rel->rd_att;
2219 
2220  appendStringInfo(&buf, "DELETE FROM %s WHERE ", relname);
2221  for (i = 0; i < pknumatts; i++)
2222  {
2223  int pkattnum = pkattnums[i];
2224  Form_pg_attribute attr = TupleDescAttr(tupdesc, pkattnum);
2225 
2226  if (i > 0)
2227  appendStringInfoString(&buf, " AND ");
2228 
2230  quote_ident_cstr(NameStr(attr->attname)));
2231 
2232  if (tgt_pkattvals[i] != NULL)
2233  appendStringInfo(&buf, " = %s",
2234  quote_literal_cstr(tgt_pkattvals[i]));
2235  else
2236  appendStringInfoString(&buf, " IS NULL");
2237  }
2238 
2239  return buf.data;
2240 }
#define NameStr(name)
Definition: c.h:735
FormData_pg_attribute * Form_pg_attribute
Definition: pg_attribute.h:209
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:182
#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 2126 of file dblink.c.

2127 {
2128  char *relname;
2129  HeapTuple tuple;
2130  TupleDesc tupdesc;
2131  int natts;
2133  char *val;
2134  int key;
2135  int i;
2136  bool needComma;
2137 
2138  initStringInfo(&buf);
2139 
2140  /* get relation name including any needed schema prefix and quoting */
2142 
2143  tupdesc = rel->rd_att;
2144  natts = tupdesc->natts;
2145 
2146  tuple = get_tuple_of_interest(rel, pkattnums, pknumatts, src_pkattvals);
2147  if (!tuple)
2148  ereport(ERROR,
2149  (errcode(ERRCODE_CARDINALITY_VIOLATION),
2150  errmsg("source row not found")));
2151 
2152  appendStringInfo(&buf, "INSERT INTO %s(", relname);
2153 
2154  needComma = false;
2155  for (i = 0; i < natts; i++)
2156  {
2157  Form_pg_attribute att = TupleDescAttr(tupdesc, i);
2158 
2159  if (att->attisdropped)
2160  continue;
2161 
2162  if (needComma)
2163  appendStringInfoChar(&buf, ',');
2164 
2166  quote_ident_cstr(NameStr(att->attname)));
2167  needComma = true;
2168  }
2169 
2170  appendStringInfoString(&buf, ") VALUES(");
2171 
2172  /*
2173  * Note: i is physical column number (counting from 0).
2174  */
2175  needComma = false;
2176  for (i = 0; i < natts; i++)
2177  {
2178  if (TupleDescAttr(tupdesc, i)->attisdropped)
2179  continue;
2180 
2181  if (needComma)
2182  appendStringInfoChar(&buf, ',');
2183 
2184  key = get_attnum_pk_pos(pkattnums, pknumatts, i);
2185 
2186  if (key >= 0)
2187  val = tgt_pkattvals[key] ? pstrdup(tgt_pkattvals[key]) : NULL;
2188  else
2189  val = SPI_getvalue(tuple, tupdesc, i + 1);
2190 
2191  if (val != NULL)
2192  {
2194  pfree(val);
2195  }
2196  else
2197  appendStringInfoString(&buf, "NULL");
2198  needComma = true;
2199  }
2200  appendStringInfoChar(&buf, ')');
2201 
2202  return buf.data;
2203 }
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 2243 of file dblink.c.

2244 {
2245  char *relname;
2246  HeapTuple tuple;
2247  TupleDesc tupdesc;
2248  int natts;
2250  char *val;
2251  int key;
2252  int i;
2253  bool needComma;
2254 
2255  initStringInfo(&buf);
2256 
2257  /* get relation name including any needed schema prefix and quoting */
2259 
2260  tupdesc = rel->rd_att;
2261  natts = tupdesc->natts;
2262 
2263  tuple = get_tuple_of_interest(rel, pkattnums, pknumatts, src_pkattvals);
2264  if (!tuple)
2265  ereport(ERROR,
2266  (errcode(ERRCODE_CARDINALITY_VIOLATION),
2267  errmsg("source row not found")));
2268 
2269  appendStringInfo(&buf, "UPDATE %s SET ", relname);
2270 
2271  /*
2272  * Note: i is physical column number (counting from 0).
2273  */
2274  needComma = false;
2275  for (i = 0; i < natts; i++)
2276  {
2277  Form_pg_attribute attr = TupleDescAttr(tupdesc, i);
2278 
2279  if (attr->attisdropped)
2280  continue;
2281 
2282  if (needComma)
2283  appendStringInfoString(&buf, ", ");
2284 
2285  appendStringInfo(&buf, "%s = ",
2286  quote_ident_cstr(NameStr(attr->attname)));
2287 
2288  key = get_attnum_pk_pos(pkattnums, pknumatts, i);
2289 
2290  if (key >= 0)
2291  val = tgt_pkattvals[key] ? pstrdup(tgt_pkattvals[key]) : NULL;
2292  else
2293  val = SPI_getvalue(tuple, tupdesc, i + 1);
2294 
2295  if (val != NULL)
2296  {
2298  pfree(val);
2299  }
2300  else
2301  appendStringInfoString(&buf, "NULL");
2302  needComma = true;
2303  }
2304 
2305  appendStringInfoString(&buf, " WHERE ");
2306 
2307  for (i = 0; i < pknumatts; i++)
2308  {
2309  int pkattnum = pkattnums[i];
2310  Form_pg_attribute attr = TupleDescAttr(tupdesc, pkattnum);
2311 
2312  if (i > 0)
2313  appendStringInfoString(&buf, " AND ");
2314 
2316  quote_ident_cstr(NameStr(attr->attname)));
2317 
2318  val = tgt_pkattvals[i];
2319 
2320  if (val != NULL)
2322  else
2323  appendStringInfoString(&buf, " IS NULL");
2324  }
2325 
2326  return buf.data;
2327 }

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 2070 of file dblink.c.

2071 {
2072  int ndim = ARR_NDIM(array);
2073  int *dims = ARR_DIMS(array);
2074  int nitems;
2075  int16 typlen;
2076  bool typbyval;
2077  char typalign;
2078  char **values;
2079  char *ptr;
2080  bits8 *bitmap;
2081  int bitmask;
2082  int i;
2083 
2084  Assert(ARR_ELEMTYPE(array) == TEXTOID);
2085 
2086  *numitems = nitems = ArrayGetNItems(ndim, dims);
2087 
2089  &typlen, &typbyval, &typalign);
2090 
2091  values = palloc_array(char *, nitems);
2092 
2093  ptr = ARR_DATA_PTR(array);
2094  bitmap = ARR_NULLBITMAP(array);
2095  bitmask = 1;
2096 
2097  for (i = 0; i < nitems; i++)
2098  {
2099  if (bitmap && (*bitmap & bitmask) == 0)
2100  {
2101  values[i] = NULL;
2102  }
2103  else
2104  {
2106  ptr = att_addlength_pointer(ptr, typlen, ptr);
2107  ptr = (char *) att_align_nominal(ptr, typalign);
2108  }
2109 
2110  /* advance bitmap pointer if any */
2111  if (bitmap)
2112  {
2113  bitmask <<= 1;
2114  if (bitmask == 0x100)
2115  {
2116  bitmap++;
2117  bitmask = 1;
2118  }
2119  }
2120  }
2121 
2122  return values;
2123 }
#define ARR_NDIM(a)
Definition: array.h:290
#define ARR_DATA_PTR(a)
Definition: array.h:322
#define ARR_NULLBITMAP(a)
Definition: array.h:300
#define ARR_ELEMTYPE(a)
Definition: array.h:292
#define ARR_DIMS(a)
Definition: array.h:294
int ArrayGetNItems(int ndim, const int *dims)
Definition: arrayutils.c:57
#define TextDatumGetCString(d)
Definition: builtins.h:95
uint8 bits8
Definition: c.h:502
#define nitems(x)
Definition: indent.h:31
void get_typlenbyvalalign(Oid typid, int16 *typlen, bool *typbyval, char *typalign)
Definition: lsyscache.c:2253
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, nitems, 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 2364 of file dblink.c.

2365 {
2366  char *relname;
2367  TupleDesc tupdesc;
2368  int natts;
2370  int ret;
2371  HeapTuple tuple;
2372  int i;
2373 
2374  /*
2375  * Connect to SPI manager
2376  */
2377  if ((ret = SPI_connect()) < 0)
2378  /* internal error */
2379  elog(ERROR, "SPI connect failure - returned %d", ret);
2380 
2381  initStringInfo(&buf);
2382 
2383  /* get relation name including any needed schema prefix and quoting */
2385 
2386  tupdesc = rel->rd_att;
2387  natts = tupdesc->natts;
2388 
2389  /*
2390  * Build sql statement to look up tuple of interest, ie, the one matching
2391  * src_pkattvals. We used to use "SELECT *" here, but it's simpler to
2392  * generate a result tuple that matches the table's physical structure,
2393  * with NULLs for any dropped columns. Otherwise we have to deal with two
2394  * different tupdescs and everything's very confusing.
2395  */
2396  appendStringInfoString(&buf, "SELECT ");
2397 
2398  for (i = 0; i < natts; i++)
2399  {
2400  Form_pg_attribute attr = TupleDescAttr(tupdesc, i);
2401 
2402  if (i > 0)
2403  appendStringInfoString(&buf, ", ");
2404 
2405  if (attr->attisdropped)
2406  appendStringInfoString(&buf, "NULL");
2407  else
2409  quote_ident_cstr(NameStr(attr->attname)));
2410  }
2411 
2412  appendStringInfo(&buf, " FROM %s WHERE ", relname);
2413 
2414  for (i = 0; i < pknumatts; i++)
2415  {
2416  int pkattnum = pkattnums[i];
2417  Form_pg_attribute attr = TupleDescAttr(tupdesc, pkattnum);
2418 
2419  if (i > 0)
2420  appendStringInfoString(&buf, " AND ");
2421 
2423  quote_ident_cstr(NameStr(attr->attname)));
2424 
2425  if (src_pkattvals[i] != NULL)
2426  appendStringInfo(&buf, " = %s",
2427  quote_literal_cstr(src_pkattvals[i]));
2428  else
2429  appendStringInfoString(&buf, " IS NULL");
2430  }
2431 
2432  /*
2433  * Retrieve the desired tuple
2434  */
2435  ret = SPI_exec(buf.data, 0);
2436  pfree(buf.data);
2437 
2438  /*
2439  * Only allow one qualifying tuple
2440  */
2441  if ((ret == SPI_OK_SELECT) && (SPI_processed > 1))
2442  ereport(ERROR,
2443  (errcode(ERRCODE_CARDINALITY_VIOLATION),
2444  errmsg("source criteria matched more than one record")));
2445 
2446  else if (ret == SPI_OK_SELECT && SPI_processed == 1)
2447  {
2448  SPITupleTable *tuptable = SPI_tuptable;
2449 
2450  tuple = SPI_copytuple(tuptable->vals[0]);
2451  SPI_finish();
2452 
2453  return tuple;
2454  }
2455  else
2456  {
2457  /*
2458  * no qualifying tuples
2459  */
2460  SPI_finish();
2461 
2462  return NULL;
2463  }
2464 
2465  /*
2466  * never reached, but keep compiler quiet
2467  */
2468  return NULL;
2469 }
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 2520 of file dblink.c.

2521 {
2522  remoteConnHashEnt *hentry;
2523  char *key;
2524 
2525  if (!remoteConnHash)
2527 
2528  key = pstrdup(name);
2529  truncate_identifier(key, strlen(key), false);
2531  key, HASH_FIND, NULL);
2532 
2533  if (hentry)
2534  return hentry->rconn;
2535 
2536  return NULL;
2537 }
@ 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 2981 of file dblink.c.

2983 {
2984  const PQconninfoOption *opt;
2985 
2986  /* Look up the option in libpq result */
2987  for (opt = options; opt->keyword; opt++)
2988  {
2989  if (strcmp(opt->keyword, option) == 0)
2990  break;
2991  }
2992  if (opt->keyword == NULL)
2993  return false;
2994 
2995  /* Disallow debug options (particularly "replication") */
2996  if (strchr(opt->dispchar, 'D'))
2997  return false;
2998 
2999  /* Disallow "client_encoding" */
3000  if (strcmp(opt->keyword, "client_encoding") == 0)
3001  return false;
3002 
3003  /*
3004  * If the option is "user" or marked secure, it should be specified only
3005  * in USER MAPPING. Others should be specified only in SERVER.
3006  */
3007  if (strcmp(opt->keyword, "user") == 0 || strchr(opt->dispchar, '*'))
3008  {
3009  if (context != UserMappingRelationId)
3010  return false;
3011  }
3012  else
3013  {
3014  if (context != ForeignServerRelationId)
3015  return false;
3016  }
3017 
3018  return true;
3019 }

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 987 of file dblink.c.

992 {
993  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
994  PGresult *volatile res = NULL;
995  volatile storeInfo sinfo = {0};
996 
997  /* prepTuplestoreResult must have been called previously */
998  Assert(rsinfo->returnMode == SFRM_Materialize);
999 
1000  sinfo.fcinfo = fcinfo;
1001 
1002  PG_TRY();
1003  {
1004  /* Create short-lived memory context for data conversions */
1005  sinfo.tmpcontext = AllocSetContextCreate(CurrentMemoryContext,
1006  "dblink temporary context",
1008 
1009  /* execute query, collecting any tuples into the tuplestore */
1010  res = storeQueryResult(&sinfo, conn, sql);
1011 
1012  if (!res ||
1015  {
1016  /*
1017  * dblink_res_error will clear the passed PGresult, so we need
1018  * this ugly dance to avoid doing so twice during error exit
1019  */
1020  PGresult *res1 = res;
1021 
1022  res = NULL;
1023  dblink_res_error(conn, conname, res1, fail,
1024  "while executing query");
1025  /* if fail isn't set, we'll return an empty query result */
1026  }
1027  else if (PQresultStatus(res) == PGRES_COMMAND_OK)
1028  {
1029  /*
1030  * storeRow didn't get called, so we need to convert the command
1031  * status string to a tuple manually
1032  */
1033  TupleDesc tupdesc;
1034  AttInMetadata *attinmeta;
1035  Tuplestorestate *tupstore;
1036  HeapTuple tuple;
1037  char *values[1];
1038  MemoryContext oldcontext;
1039 
1040  /*
1041  * need a tuple descriptor representing one TEXT column to return
1042  * the command status string as our result tuple
1043  */
1044  tupdesc = CreateTemplateTupleDesc(1);
1045  TupleDescInitEntry(tupdesc, (AttrNumber) 1, "status",
1046  TEXTOID, -1, 0);
1047  attinmeta = TupleDescGetAttInMetadata(tupdesc);
1048 
1049  oldcontext = MemoryContextSwitchTo(rsinfo->econtext->ecxt_per_query_memory);
1050  tupstore = tuplestore_begin_heap(true, false, work_mem);
1051  rsinfo->setResult = tupstore;
1052  rsinfo->setDesc = tupdesc;
1053  MemoryContextSwitchTo(oldcontext);
1054 
1055  values[0] = PQcmdStatus(res);
1056 
1057  /* build the tuple and put it into the tuplestore. */
1058  tuple = BuildTupleFromCStrings(attinmeta, values);
1059  tuplestore_puttuple(tupstore, tuple);
1060 
1061  PQclear(res);
1062  res = NULL;
1063  }
1064  else
1065  {
1067  /* storeRow should have created a tuplestore */
1068  Assert(rsinfo->setResult != NULL);
1069 
1070  PQclear(res);
1071  res = NULL;
1072  }
1073 
1074  /* clean up data conversion short-lived memory context */
1075  if (sinfo.tmpcontext != NULL)
1076  MemoryContextDelete(sinfo.tmpcontext);
1077  sinfo.tmpcontext = NULL;
1078 
1079  PQclear(sinfo.last_res);
1080  sinfo.last_res = NULL;
1081  PQclear(sinfo.cur_res);
1082  sinfo.cur_res = NULL;
1083  }
1084  PG_CATCH();
1085  {
1086  /* be sure to release any libpq result we collected */
1087  PQclear(res);
1088  PQclear(sinfo.last_res);
1089  PQclear(sinfo.cur_res);
1090  /* and clear out any pending data in libpq */
1091  while ((res = PQgetResult(conn)) != NULL)
1092  PQclear(res);
1093  PG_RE_THROW();
1094  }
1095  PG_END_TRY();
1096 }
#define PG_RE_THROW()
Definition: elog.h:411
#define PG_CATCH(...)
Definition: elog.h:380
@ SFRM_Materialize
Definition: execnodes.h:310
int work_mem
Definition: globals.c:127
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:403
#define AllocSetContextCreate
Definition: memutils.h:126
#define ALLOCSET_DEFAULT_SIZES
Definition: memutils.h:150
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 848 of file dblink.c.

849 {
850  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
851 
852  /* prepTuplestoreResult must have been called previously */
853  Assert(rsinfo->returnMode == SFRM_Materialize);
854 
855  PG_TRY();
856  {
857  TupleDesc tupdesc;
858  bool is_sql_cmd;
859  int ntuples;
860  int nfields;
861 
863  {
864  is_sql_cmd = true;
865 
866  /*
867  * need a tuple descriptor representing one TEXT column to return
868  * the command status string as our result tuple
869  */
870  tupdesc = CreateTemplateTupleDesc(1);
871  TupleDescInitEntry(tupdesc, (AttrNumber) 1, "status",
872  TEXTOID, -1, 0);
873  ntuples = 1;
874  nfields = 1;
875  }
876  else
877  {
879 
880  is_sql_cmd = false;
881 
882  /* get a tuple descriptor for our result type */
883  switch (get_call_result_type(fcinfo, NULL, &tupdesc))
884  {
885  case TYPEFUNC_COMPOSITE:
886  /* success */
887  break;
888  case TYPEFUNC_RECORD:
889  /* failed to determine actual type of RECORD */
890  ereport(ERROR,
891  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
892  errmsg("function returning record called in context "
893  "that cannot accept type record")));
894  break;
895  default:
896  /* result type isn't composite */
897  elog(ERROR, "return type must be a row type");
898  break;
899  }
900 
901  /* make sure we have a persistent copy of the tupdesc */
902  tupdesc = CreateTupleDescCopy(tupdesc);
903  ntuples = PQntuples(res);
904  nfields = PQnfields(res);
905  }
906 
907  /*
908  * check result and tuple descriptor have the same number of columns
909  */
910  if (nfields != tupdesc->natts)
911  ereport(ERROR,
912  (errcode(ERRCODE_DATATYPE_MISMATCH),
913  errmsg("remote query result rowtype does not match "
914  "the specified FROM clause rowtype")));
915 
916  if (ntuples > 0)
917  {
918  AttInMetadata *attinmeta;
919  int nestlevel = -1;
920  Tuplestorestate *tupstore;
921  MemoryContext oldcontext;
922  int row;
923  char **values;
924 
925  attinmeta = TupleDescGetAttInMetadata(tupdesc);
926 
927  /* Set GUCs to ensure we read GUC-sensitive data types correctly */
928  if (!is_sql_cmd)
929  nestlevel = applyRemoteGucs(conn);
930 
932  tupstore = tuplestore_begin_heap(true, false, work_mem);
933  rsinfo->setResult = tupstore;
934  rsinfo->setDesc = tupdesc;
935  MemoryContextSwitchTo(oldcontext);
936 
937  values = palloc_array(char *, nfields);
938 
939  /* put all tuples into the tuplestore */
940  for (row = 0; row < ntuples; row++)
941  {
942  HeapTuple tuple;
943 
944  if (!is_sql_cmd)
945  {
946  int i;
947 
948  for (i = 0; i < nfields; i++)
949  {
950  if (PQgetisnull(res, row, i))
951  values[i] = NULL;
952  else
953  values[i] = PQgetvalue(res, row, i);
954  }
955  }
956  else
957  {
958  values[0] = PQcmdStatus(res);
959  }
960 
961  /* build the tuple and put it into the tuplestore. */
962  tuple = BuildTupleFromCStrings(attinmeta, values);
963  tuplestore_puttuple(tupstore, tuple);
964  }
965 
966  /* clean up GUC settings, if we changed any */
967  restoreLocalGucs(nestlevel);
968  }
969  }
970  PG_FINALLY();
971  {
972  /* be sure to release the libpq result */
973  PQclear(res);
974  }
975  PG_END_TRY();
976 }
int PQntuples(const PGresult *res)
Definition: fe-exec.c:3403
char * PQgetvalue(const PGresult *res, int tup_num, int field_num)
Definition: fe-exec.c:3798
int PQgetisnull(const PGresult *res, int tup_num, int field_num)
Definition: fe-exec.c:3823
int PQnfields(const PGresult *res)
Definition: fe-exec.c:3411
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:255
SetFunctionReturnMode returnMode
Definition: execnodes.h:329
ExprContext * econtext
Definition: execnodes.h:325
TupleDesc CreateTupleDescCopy(TupleDesc tupdesc)
Definition: tupdesc.c:133

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 172 of file dblink.c.

174 {
175  if (conname)
176  ereport(ERROR,
177  (errcode(ERRCODE_CONNECTION_DOES_NOT_EXIST),
178  errmsg("connection \"%s\" not available", conname)));
179  else
180  ereport(ERROR,
181  (errcode(ERRCODE_CONNECTION_DOES_NOT_EXIST),
182  errmsg("connection not available")));
183 }

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_new_cluster_logical_replication_slots(), 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(), create_logical_replication_slots(), 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(), describeRoleGrants(), 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_old_cluster_logical_slot_infos(), get_parallel_object_list(), get_rel_infos(), get_remote_estimate(), get_returning_data(), get_synchronized_snapshot(), get_tablespace_paths(), get_template0_info(), 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(), getPartitioningInfo(), 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(), initPopulateTable(), 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_end(), pgfdw_exec_cleanup_query_end(), 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(), prepareCommand(), 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(), SendQuery(), set_frozenxids(), set_locale_and_encoding(), 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 820 of file dblink.c.

821 {
822  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
823 
824  /* check to see if query supports us returning a tuplestore */
825  if (rsinfo == NULL || !IsA(rsinfo, ReturnSetInfo))
826  ereport(ERROR,
827  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
828  errmsg("set-valued function called in context that cannot accept a set")));
829  if (!(rsinfo->allowedModes & SFRM_Materialize))
830  ereport(ERROR,
831  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
832  errmsg("materialize mode required, but it is not allowed in this context")));
833 
834  /* let the executor know we're sending back a tuplestore */
835  rsinfo->returnMode = SFRM_Materialize;
836 
837  /* caller must fill these to return a non-empty result */
838  rsinfo->setResult = NULL;
839  rsinfo->setDesc = NULL;
840 }
#define IsA(nodeptr, _type_)
Definition: nodes.h:179
int allowedModes
Definition: execnodes.h:327

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 2334 of file dblink.c.

2335 {
2336  text *rawstr_text;
2337  text *result_text;
2338  char *result;
2339 
2340  rawstr_text = cstring_to_text(rawstr);
2342  PointerGetDatum(rawstr_text)));
2343  result = text_to_cstring(result_text);
2344 
2345  return result;
2346 }
#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 3084 of file dblink.c.

3085 {
3086  /* Do nothing if no new nestlevel was created */
3087  if (nestlevel > 0)
3088  AtEOXact_GUC(true, nestlevel);
3089 }
void AtEOXact_GUC(bool isCommit, int nestLevel)
Definition: guc.c:2245

References AtEOXact_GUC().

Referenced by materializeResult(), and storeQueryResult().

◆ storeQueryResult()

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

Definition at line 1102 of file dblink.c.

1103 {
1104  bool first = true;
1105  int nestlevel = -1;
1106  PGresult *res;
1107 
1108  if (!PQsendQuery(conn, sql))
1109  elog(ERROR, "could not send query: %s", pchomp(PQerrorMessage(conn)));
1110 
1111  if (!PQsetSingleRowMode(conn)) /* shouldn't fail */
1112  elog(ERROR, "failed to set single-row mode for dblink query");
1113 
1114  for (;;)
1115  {
1117 
1118  sinfo->cur_res = PQgetResult(conn);
1119  if (!sinfo->cur_res)
1120  break;
1121 
1122  if (PQresultStatus(sinfo->cur_res) == PGRES_SINGLE_TUPLE)
1123  {
1124  /* got one row from possibly-bigger resultset */
1125 
1126  /*
1127  * Set GUCs to ensure we read GUC-sensitive data types correctly.
1128  * We shouldn't do this until we have a row in hand, to ensure
1129  * libpq has seen any earlier ParameterStatus protocol messages.
1130  */
1131  if (first && nestlevel < 0)
1132  nestlevel = applyRemoteGucs(conn);
1133 
1134  storeRow(sinfo, sinfo->cur_res, first);
1135 
1136  PQclear(sinfo->cur_res);
1137  sinfo->cur_res = NULL;
1138  first = false;
1139  }
1140  else
1141  {
1142  /* if empty resultset, fill tuplestore header */
1143  if (first && PQresultStatus(sinfo->cur_res) == PGRES_TUPLES_OK)
1144  storeRow(sinfo, sinfo->cur_res, first);
1145 
1146  /* store completed result at last_res */
1147  PQclear(sinfo->last_res);
1148  sinfo->last_res = sinfo->cur_res;
1149  sinfo->cur_res = NULL;
1150  first = true;
1151  }
1152  }
1153 
1154  /* clean up GUC settings, if we changed any */
1155  restoreLocalGucs(nestlevel);
1156 
1157  /* return last_res */
1158  res = sinfo->last_res;
1159  sinfo->last_res = NULL;
1160  return res;
1161 }
int PQsetSingleRowMode(PGconn *conn)
Definition: fe-exec.c:1929
@ 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 1170 of file dblink.c.

1171 {
1172  int nfields = PQnfields(res);
1173  HeapTuple tuple;
1174  int i;
1175  MemoryContext oldcontext;
1176 
1177  if (first)
1178  {
1179  /* Prepare for new result set */
1180  ReturnSetInfo *rsinfo = (ReturnSetInfo *) sinfo->fcinfo->resultinfo;
1181  TupleDesc tupdesc;
1182 
1183  /*
1184  * It's possible to get more than one result set if the query string
1185  * contained multiple SQL commands. In that case, we follow PQexec's
1186  * traditional behavior of throwing away all but the last result.
1187  */
1188  if (sinfo->tuplestore)
1189  tuplestore_end(sinfo->tuplestore);
1190  sinfo->tuplestore = NULL;
1191 
1192  /* get a tuple descriptor for our result type */
1193  switch (get_call_result_type(sinfo->fcinfo, NULL, &tupdesc))
1194  {
1195  case TYPEFUNC_COMPOSITE:
1196  /* success */
1197  break;
1198  case TYPEFUNC_RECORD:
1199  /* failed to determine actual type of RECORD */
1200  ereport(ERROR,
1201  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1202  errmsg("function returning record called in context "
1203  "that cannot accept type record")));
1204  break;
1205  default:
1206  /* result type isn't composite */
1207  elog(ERROR, "return type must be a row type");
1208  break;
1209  }
1210 
1211  /* make sure we have a persistent copy of the tupdesc */
1212  tupdesc = CreateTupleDescCopy(tupdesc);
1213 
1214  /* check result and tuple descriptor have the same number of columns */
1215  if (nfields != tupdesc->natts)
1216  ereport(ERROR,
1217  (errcode(ERRCODE_DATATYPE_MISMATCH),
1218  errmsg("remote query result rowtype does not match "
1219  "the specified FROM clause rowtype")));
1220 
1221  /* Prepare attinmeta for later data conversions */
1222  sinfo->attinmeta = TupleDescGetAttInMetadata(tupdesc);
1223 
1224  /* Create a new, empty tuplestore */
1225  oldcontext = MemoryContextSwitchTo(rsinfo->econtext->ecxt_per_query_memory);
1226  sinfo->tuplestore = tuplestore_begin_heap(true, false, work_mem);
1227  rsinfo->setResult = sinfo->tuplestore;
1228  rsinfo->setDesc = tupdesc;
1229  MemoryContextSwitchTo(oldcontext);
1230 
1231  /* Done if empty resultset */
1232  if (PQntuples(res) == 0)
1233  return;
1234 
1235  /*
1236  * Set up sufficiently-wide string pointers array; this won't change
1237  * in size so it's easy to preallocate.
1238  */
1239  if (sinfo->cstrs)
1240  pfree(sinfo->cstrs);
1241  sinfo->cstrs = palloc_array(char *, nfields);
1242  }
1243 
1244  /* Should have a single-row result if we get here */
1245  Assert(PQntuples(res) == 1);
1246 
1247  /*
1248  * Do the following work in a temp context that we reset after each tuple.
1249  * This cleans up not only the data we have direct access to, but any
1250  * cruft the I/O functions might leak.
1251  */
1252  oldcontext = MemoryContextSwitchTo(sinfo->tmpcontext);
1253 
1254  /*
1255  * Fill cstrs with null-terminated strings of column values.
1256  */
1257  for (i = 0; i < nfields; i++)
1258  {
1259  if (PQgetisnull(res, 0, i))
1260  sinfo->cstrs[i] = NULL;
1261  else
1262  sinfo->cstrs[i] = PQgetvalue(res, 0, i);
1263  }
1264 
1265  /* Convert row to a tuple, and add it to the tuplestore */
1266  tuple = BuildTupleFromCStrings(sinfo->attinmeta, sinfo->cstrs);
1267 
1268  tuplestore_puttuple(sinfo->tuplestore, tuple);
1269 
1270  /* Clean up */
1271  MemoryContextSwitchTo(oldcontext);
1272  MemoryContextReset(sinfo->tmpcontext);
1273 }
void MemoryContextReset(MemoryContext context)
Definition: mcxt.c:330
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 2910 of file dblink.c.

2913 {
2914  TupleDesc tupdesc = rel->rd_att;
2915  int natts = tupdesc->natts;
2916  int i;
2917 
2918  /* Don't take more array elements than there are */
2919  pknumatts_arg = Min(pknumatts_arg, pkattnums_arg->dim1);
2920 
2921  /* Must have at least one pk attnum selected */
2922  if (pknumatts_arg <= 0)
2923  ereport(ERROR,
2924  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2925  errmsg("number of key attributes must be > 0")));
2926 
2927  /* Allocate output array */
2928  *pkattnums = palloc_array(int, pknumatts_arg);
2929  *pknumatts = pknumatts_arg;
2930 
2931  /* Validate attnums and convert to internal form */
2932  for (i = 0; i < pknumatts_arg; i++)
2933  {
2934  int pkattnum = pkattnums_arg->values[i];
2935  int lnum;
2936  int j;
2937 
2938  /* Can throw error immediately if out of range */
2939  if (pkattnum <= 0 || pkattnum > natts)
2940  ereport(ERROR,
2941  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2942  errmsg("invalid attribute number %d", pkattnum)));
2943 
2944  /* Identify which physical column has this logical number */
2945  lnum = 0;
2946  for (j = 0; j < natts; j++)
2947  {
2948  /* dropped columns don't count */
2949  if (TupleDescAttr(tupdesc, j)->attisdropped)
2950  continue;
2951 
2952  if (++lnum == pkattnum)
2953  break;
2954  }
2955 
2956  if (j < natts)
2957  (*pkattnums)[i] = j;
2958  else
2959  ereport(ERROR,
2960  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2961  errmsg("invalid attribute number %d", pkattnum)));
2962  }
2963 }
#define Min(x, y)
Definition: c.h:993
int j
Definition: isn.c:74
int dim1
Definition: c.h:709
int16 values[FLEXIBLE_ARRAY_MEMBER]
Definition: c.h:711

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 154 of file dblink.c.

155 {
156  if (in == NULL)
157  return NULL;
158  return pstrdup(in);
159 }

References pstrdup().

Referenced by dblink_res_error().

Variable Documentation

◆ dblink_we_connect

uint32 dblink_we_connect = 0
static

Definition at line 134 of file dblink.c.

Referenced by dblink_connect().

◆ dblink_we_get_conn

uint32 dblink_we_get_conn = 0
static

Definition at line 135 of file dblink.c.

Referenced by dblink_get_conn().

◆ p2

◆ pconn

◆ PG_MODULE_MAGIC

PG_MODULE_MAGIC

Definition at line 65 of file dblink.c.

◆ remoteConnHash

HTAB* remoteConnHash = NULL
static

◆ res

void PGresult* res

Definition at line 163 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_new_cluster_logical_replication_slots(), 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(), cmp_list_len_contents_asc(), cmpEntries(), cmpTheLexeme(),