PostgreSQL Source Code  git master
event_trigger.c File Reference
#include "postgres.h"
#include "access/htup_details.h"
#include "access/xact.h"
#include "catalog/dependency.h"
#include "catalog/indexing.h"
#include "catalog/objectaccess.h"
#include "catalog/pg_event_trigger.h"
#include "catalog/pg_namespace.h"
#include "catalog/pg_opclass.h"
#include "catalog/pg_opfamily.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_trigger.h"
#include "catalog/pg_ts_config.h"
#include "catalog/pg_type.h"
#include "commands/dbcommands.h"
#include "commands/event_trigger.h"
#include "commands/extension.h"
#include "commands/trigger.h"
#include "funcapi.h"
#include "parser/parse_func.h"
#include "pgstat.h"
#include "lib/ilist.h"
#include "miscadmin.h"
#include "tcop/deparse_utility.h"
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/evtcache.h"
#include "utils/fmgroids.h"
#include "utils/lsyscache.h"
#include "utils/memutils.h"
#include "utils/rel.h"
#include "utils/tqual.h"
#include "utils/syscache.h"
#include "tcop/utility.h"
Include dependency graph for event_trigger.c:

Go to the source code of this file.

Data Structures

struct  EventTriggerQueryState
 
struct  event_trigger_support_data
 
struct  SQLDropObject
 

Typedefs

typedef struct EventTriggerQueryState EventTriggerQueryState
 
typedef struct SQLDropObject SQLDropObject
 

Enumerations

enum  event_trigger_command_tag_check_result { EVENT_TRIGGER_COMMAND_TAG_OK, EVENT_TRIGGER_COMMAND_TAG_NOT_SUPPORTED, EVENT_TRIGGER_COMMAND_TAG_NOT_RECOGNIZED }
 

Functions

static void AlterEventTriggerOwner_internal (Relation rel, HeapTuple tup, Oid newOwnerId)
 
static event_trigger_command_tag_check_result check_ddl_tag (const char *tag)
 
static event_trigger_command_tag_check_result check_table_rewrite_ddl_tag (const char *tag)
 
static void error_duplicate_filter_variable (const char *defname)
 
static Datum filter_list_to_array (List *filterlist)
 
static Oid insert_event_trigger_tuple (const char *trigname, const char *eventname, Oid evtOwner, Oid funcoid, List *tags)
 
static void validate_ddl_tags (const char *filtervar, List *taglist)
 
static void validate_table_rewrite_tags (const char *filtervar, List *taglist)
 
static void EventTriggerInvoke (List *fn_oid_list, EventTriggerData *trigdata)
 
static const char * stringify_grant_objtype (ObjectType objtype)
 
static const char * stringify_adefprivs_objtype (ObjectType objtype)
 
Oid CreateEventTrigger (CreateEventTrigStmt *stmt)
 
void RemoveEventTriggerById (Oid trigOid)
 
Oid AlterEventTrigger (AlterEventTrigStmt *stmt)
 
ObjectAddress AlterEventTriggerOwner (const char *name, Oid newOwnerId)
 
void AlterEventTriggerOwner_oid (Oid trigOid, Oid newOwnerId)
 
Oid get_event_trigger_oid (const char *trigname, bool missing_ok)
 
static bool filter_event_trigger (const char **tag, EventTriggerCacheItem *item)
 
static ListEventTriggerCommonSetup (Node *parsetree, EventTriggerEvent event, const char *eventstr, EventTriggerData *trigdata)
 
void EventTriggerDDLCommandStart (Node *parsetree)
 
void EventTriggerDDLCommandEnd (Node *parsetree)
 
void EventTriggerSQLDrop (Node *parsetree)
 
void EventTriggerTableRewrite (Node *parsetree, Oid tableOid, int reason)
 
bool EventTriggerSupportsObjectType (ObjectType obtype)
 
bool EventTriggerSupportsObjectClass (ObjectClass objclass)
 
bool EventTriggerBeginCompleteQuery (void)
 
void EventTriggerEndCompleteQuery (void)
 
bool trackDroppedObjectsNeeded (void)
 
void EventTriggerSQLDropAddObject (const ObjectAddress *object, bool original, bool normal)
 
Datum pg_event_trigger_dropped_objects (PG_FUNCTION_ARGS)
 
Datum pg_event_trigger_table_rewrite_oid (PG_FUNCTION_ARGS)
 
Datum pg_event_trigger_table_rewrite_reason (PG_FUNCTION_ARGS)
 
void EventTriggerInhibitCommandCollection (void)
 
void EventTriggerUndoInhibitCommandCollection (void)
 
void EventTriggerCollectSimpleCommand (ObjectAddress address, ObjectAddress secondaryObject, Node *parsetree)
 
void EventTriggerAlterTableStart (Node *parsetree)
 
void EventTriggerAlterTableRelid (Oid objectId)
 
void EventTriggerCollectAlterTableSubcmd (Node *subcmd, ObjectAddress address)
 
void EventTriggerAlterTableEnd (void)
 
void EventTriggerCollectGrant (InternalGrant *istmt)
 
void EventTriggerCollectAlterOpFam (AlterOpFamilyStmt *stmt, Oid opfamoid, List *operators, List *procedures)
 
void EventTriggerCollectCreateOpClass (CreateOpClassStmt *stmt, Oid opcoid, List *operators, List *procedures)
 
void EventTriggerCollectAlterTSConfig (AlterTSConfigurationStmt *stmt, Oid cfgId, Oid *dictIds, int ndicts)
 
void EventTriggerCollectAlterDefPrivs (AlterDefaultPrivilegesStmt *stmt)
 
Datum pg_event_trigger_ddl_commands (PG_FUNCTION_ARGS)
 

Variables

static EventTriggerQueryStatecurrentEventTriggerState = NULL
 
static event_trigger_support_data event_trigger_support []
 

Typedef Documentation

◆ EventTriggerQueryState

◆ SQLDropObject

Enumeration Type Documentation

◆ event_trigger_command_tag_check_result

Enumerator
EVENT_TRIGGER_COMMAND_TAG_OK 
EVENT_TRIGGER_COMMAND_TAG_NOT_SUPPORTED 
EVENT_TRIGGER_COMMAND_TAG_NOT_RECOGNIZED 

Definition at line 80 of file event_trigger.c.

Function Documentation

◆ AlterEventTrigger()

Oid AlterEventTrigger ( AlterEventTrigStmt stmt)

Definition at line 501 of file event_trigger.c.

References aclcheck_error(), ACLCHECK_NOT_OWNER, CatalogTupleUpdate(), CStringGetDatum, ereport, errcode(), errmsg(), ERROR, EVENTTRIGGERNAME, GETSTRUCT, GetUserId(), heap_close, heap_freetuple(), heap_open(), HeapTupleGetOid, HeapTupleIsValid, InvokeObjectPostAlterHook, OBJECT_EVENT_TRIGGER, pg_event_trigger_ownercheck(), RowExclusiveLock, SearchSysCacheCopy1, HeapTupleData::t_self, AlterEventTrigStmt::tgenabled, and AlterEventTrigStmt::trigname.

Referenced by standard_ProcessUtility().

502 {
503  Relation tgrel;
504  HeapTuple tup;
505  Oid trigoid;
506  Form_pg_event_trigger evtForm;
507  char tgenabled = stmt->tgenabled;
508 
509  tgrel = heap_open(EventTriggerRelationId, RowExclusiveLock);
510 
512  CStringGetDatum(stmt->trigname));
513  if (!HeapTupleIsValid(tup))
514  ereport(ERROR,
515  (errcode(ERRCODE_UNDEFINED_OBJECT),
516  errmsg("event trigger \"%s\" does not exist",
517  stmt->trigname)));
518 
519  trigoid = HeapTupleGetOid(tup);
520 
521  if (!pg_event_trigger_ownercheck(trigoid, GetUserId()))
523  stmt->trigname);
524 
525  /* tuple is a copy, so we can modify it below */
526  evtForm = (Form_pg_event_trigger) GETSTRUCT(tup);
527  evtForm->evtenabled = tgenabled;
528 
529  CatalogTupleUpdate(tgrel, &tup->t_self, tup);
530 
531  InvokeObjectPostAlterHook(EventTriggerRelationId,
532  trigoid, 0);
533 
534  /* clean up */
535  heap_freetuple(tup);
537 
538  return trigoid;
539 }
#define GETSTRUCT(TUP)
Definition: htup_details.h:668
Oid GetUserId(void)
Definition: miscinit.c:379
int errcode(int sqlerrcode)
Definition: elog.c:575
#define heap_close(r, l)
Definition: heapam.h:97
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1773
unsigned int Oid
Definition: postgres_ext.h:31
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3349
#define ERROR
Definition: elog.h:43
bool pg_event_trigger_ownercheck(Oid et_oid, Oid roleid)
Definition: aclchk.c:5142
ItemPointerData t_self
Definition: htup.h:65
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:563
#define ereport(elevel, rest)
Definition: elog.h:122
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:163
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1294
FormData_pg_event_trigger * Form_pg_event_trigger
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:211
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:173
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:707

◆ AlterEventTriggerOwner()

ObjectAddress AlterEventTriggerOwner ( const char *  name,
Oid  newOwnerId 
)

Definition at line 545 of file event_trigger.c.

References AlterEventTriggerOwner_internal(), CStringGetDatum, ereport, errcode(), errmsg(), ERROR, EVENTTRIGGERNAME, heap_close, heap_freetuple(), heap_open(), HeapTupleGetOid, HeapTupleIsValid, ObjectAddressSet, RowExclusiveLock, and SearchSysCacheCopy1.

Referenced by ExecAlterOwnerStmt().

546 {
547  Oid evtOid;
548  HeapTuple tup;
549  Relation rel;
550  ObjectAddress address;
551 
552  rel = heap_open(EventTriggerRelationId, RowExclusiveLock);
553 
555 
556  if (!HeapTupleIsValid(tup))
557  ereport(ERROR,
558  (errcode(ERRCODE_UNDEFINED_OBJECT),
559  errmsg("event trigger \"%s\" does not exist", name)));
560 
561  evtOid = HeapTupleGetOid(tup);
562 
563  AlterEventTriggerOwner_internal(rel, tup, newOwnerId);
564 
565  ObjectAddressSet(address, EventTriggerRelationId, evtOid);
566 
567  heap_freetuple(tup);
568 
570 
571  return address;
572 }
int errcode(int sqlerrcode)
Definition: elog.c:575
#define heap_close(r, l)
Definition: heapam.h:97
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1773
unsigned int Oid
Definition: postgres_ext.h:31
static void AlterEventTriggerOwner_internal(Relation rel, HeapTuple tup, Oid newOwnerId)
#define ERROR
Definition: elog.h:43
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:563
#define ereport(elevel, rest)
Definition: elog.h:122
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1294
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
const char * name
Definition: encode.c:521
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:173
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:707

◆ AlterEventTriggerOwner_internal()

static void AlterEventTriggerOwner_internal ( Relation  rel,
HeapTuple  tup,
Oid  newOwnerId 
)
static

Definition at line 603 of file event_trigger.c.

References aclcheck_error(), ACLCHECK_NOT_OWNER, CatalogTupleUpdate(), changeDependencyOnOwner(), ereport, errcode(), errhint(), errmsg(), ERROR, GETSTRUCT, GetUserId(), HeapTupleGetOid, InvokeObjectPostAlterHook, NameStr, OBJECT_EVENT_TRIGGER, pg_event_trigger_ownercheck(), superuser_arg(), and HeapTupleData::t_self.

Referenced by AlterEventTriggerOwner(), and AlterEventTriggerOwner_oid().

604 {
606 
607  form = (Form_pg_event_trigger) GETSTRUCT(tup);
608 
609  if (form->evtowner == newOwnerId)
610  return;
611 
614  NameStr(form->evtname));
615 
616  /* New owner must be a superuser */
617  if (!superuser_arg(newOwnerId))
618  ereport(ERROR,
619  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
620  errmsg("permission denied to change owner of event trigger \"%s\"",
621  NameStr(form->evtname)),
622  errhint("The owner of an event trigger must be a superuser.")));
623 
624  form->evtowner = newOwnerId;
625  CatalogTupleUpdate(rel, &tup->t_self, tup);
626 
627  /* Update owner dependency reference */
628  changeDependencyOnOwner(EventTriggerRelationId,
629  HeapTupleGetOid(tup),
630  newOwnerId);
631 
632  InvokeObjectPostAlterHook(EventTriggerRelationId,
633  HeapTupleGetOid(tup), 0);
634 }
int errhint(const char *fmt,...)
Definition: elog.c:987
#define GETSTRUCT(TUP)
Definition: htup_details.h:668
Oid GetUserId(void)
Definition: miscinit.c:379
int errcode(int sqlerrcode)
Definition: elog.c:575
void changeDependencyOnOwner(Oid classId, Oid objectId, Oid newOwnerId)
Definition: pg_shdepend.c:304
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3349
#define ERROR
Definition: elog.h:43
bool pg_event_trigger_ownercheck(Oid et_oid, Oid roleid)
Definition: aclchk.c:5142
ItemPointerData t_self
Definition: htup.h:65
#define ereport(elevel, rest)
Definition: elog.h:122
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:163
bool superuser_arg(Oid roleid)
Definition: superuser.c:57
FormData_pg_event_trigger * Form_pg_event_trigger
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:211
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define NameStr(name)
Definition: c.h:576
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:707

◆ AlterEventTriggerOwner_oid()

void AlterEventTriggerOwner_oid ( Oid  trigOid,
Oid  newOwnerId 
)

Definition at line 578 of file event_trigger.c.

References AlterEventTriggerOwner_internal(), ereport, errcode(), errmsg(), ERROR, EVENTTRIGGEROID, heap_close, heap_freetuple(), heap_open(), HeapTupleIsValid, ObjectIdGetDatum, RowExclusiveLock, and SearchSysCacheCopy1.

Referenced by shdepReassignOwned().

579 {
580  HeapTuple tup;
581  Relation rel;
582 
583  rel = heap_open(EventTriggerRelationId, RowExclusiveLock);
584 
586 
587  if (!HeapTupleIsValid(tup))
588  ereport(ERROR,
589  (errcode(ERRCODE_UNDEFINED_OBJECT),
590  errmsg("event trigger with OID %u does not exist", trigOid)));
591 
592  AlterEventTriggerOwner_internal(rel, tup, newOwnerId);
593 
594  heap_freetuple(tup);
595 
597 }
int errcode(int sqlerrcode)
Definition: elog.c:575
#define heap_close(r, l)
Definition: heapam.h:97
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1773
static void AlterEventTriggerOwner_internal(Relation rel, HeapTuple tup, Oid newOwnerId)
#define ObjectIdGetDatum(X)
Definition: postgres.h:492
#define ERROR
Definition: elog.h:43
#define RowExclusiveLock
Definition: lockdefs.h:38
#define ereport(elevel, rest)
Definition: elog.h:122
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1294
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:173
int errmsg(const char *fmt,...)
Definition: elog.c:797

◆ check_ddl_tag()

static event_trigger_command_tag_check_result check_ddl_tag ( const char *  tag)
static

Definition at line 282 of file event_trigger.c.

References EVENT_TRIGGER_COMMAND_TAG_NOT_RECOGNIZED, EVENT_TRIGGER_COMMAND_TAG_NOT_SUPPORTED, EVENT_TRIGGER_COMMAND_TAG_OK, event_trigger_support_data::obtypename, pg_strcasecmp(), pg_strncasecmp(), and event_trigger_support_data::supported.

Referenced by EventTriggerCommonSetup(), and validate_ddl_tags().

283 {
284  const char *obtypename;
286 
287  /*
288  * Handle some idiosyncratic special cases.
289  */
290  if (pg_strcasecmp(tag, "CREATE TABLE AS") == 0 ||
291  pg_strcasecmp(tag, "SELECT INTO") == 0 ||
292  pg_strcasecmp(tag, "REFRESH MATERIALIZED VIEW") == 0 ||
293  pg_strcasecmp(tag, "ALTER DEFAULT PRIVILEGES") == 0 ||
294  pg_strcasecmp(tag, "ALTER LARGE OBJECT") == 0 ||
295  pg_strcasecmp(tag, "COMMENT") == 0 ||
296  pg_strcasecmp(tag, "GRANT") == 0 ||
297  pg_strcasecmp(tag, "REVOKE") == 0 ||
298  pg_strcasecmp(tag, "DROP OWNED") == 0 ||
299  pg_strcasecmp(tag, "IMPORT FOREIGN SCHEMA") == 0 ||
300  pg_strcasecmp(tag, "SECURITY LABEL") == 0)
302 
303  /*
304  * Otherwise, command should be CREATE, ALTER, or DROP.
305  */
306  if (pg_strncasecmp(tag, "CREATE ", 7) == 0)
307  obtypename = tag + 7;
308  else if (pg_strncasecmp(tag, "ALTER ", 6) == 0)
309  obtypename = tag + 6;
310  else if (pg_strncasecmp(tag, "DROP ", 5) == 0)
311  obtypename = tag + 5;
312  else
314 
315  /*
316  * ...and the object type should be something recognizable.
317  */
318  for (etsd = event_trigger_support; etsd->obtypename != NULL; etsd++)
319  if (pg_strcasecmp(etsd->obtypename, obtypename) == 0)
320  break;
321  if (etsd->obtypename == NULL)
323  if (!etsd->supported)
326 }
int pg_strcasecmp(const char *s1, const char *s2)
Definition: pgstrcasecmp.c:36
int pg_strncasecmp(const char *s1, const char *s2, size_t n)
Definition: pgstrcasecmp.c:69
static event_trigger_support_data event_trigger_support[]
Definition: event_trigger.c:88

◆ check_table_rewrite_ddl_tag()

static event_trigger_command_tag_check_result check_table_rewrite_ddl_tag ( const char *  tag)
static

Definition at line 352 of file event_trigger.c.

References EVENT_TRIGGER_COMMAND_TAG_NOT_SUPPORTED, EVENT_TRIGGER_COMMAND_TAG_OK, and pg_strcasecmp().

Referenced by EventTriggerCommonSetup(), and validate_table_rewrite_tags().

353 {
354  if (pg_strcasecmp(tag, "ALTER TABLE") == 0 ||
355  pg_strcasecmp(tag, "ALTER TYPE") == 0)
357 
359 }
int pg_strcasecmp(const char *s1, const char *s2)
Definition: pgstrcasecmp.c:36

◆ CreateEventTrigger()

Oid CreateEventTrigger ( CreateEventTrigStmt stmt)

Definition at line 169 of file event_trigger.c.

References DefElem::arg, CStringGetDatum, DefElem::defname, ereport, errcode(), ERRCODE_DUPLICATE_OBJECT, errhint(), errmsg(), ERROR, error_duplicate_filter_variable(), CreateEventTrigStmt::eventname, EVENTTRIGGERNAME, CreateEventTrigStmt::funcname, get_func_rettype(), GetUserId(), HeapTupleIsValid, insert_event_trigger_tuple(), lfirst, LookupFuncName(), NameListToString(), SearchSysCache1(), superuser(), CreateEventTrigStmt::trigname, validate_ddl_tags(), validate_table_rewrite_tags(), and CreateEventTrigStmt::whenclause.

Referenced by standard_ProcessUtility().

170 {
171  HeapTuple tuple;
172  Oid funcoid;
173  Oid funcrettype;
174  Oid fargtypes[1]; /* dummy */
175  Oid evtowner = GetUserId();
176  ListCell *lc;
177  List *tags = NULL;
178 
179  /*
180  * It would be nice to allow database owners or even regular users to do
181  * this, but there are obvious privilege escalation risks which would have
182  * to somehow be plugged first.
183  */
184  if (!superuser())
185  ereport(ERROR,
186  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
187  errmsg("permission denied to create event trigger \"%s\"",
188  stmt->trigname),
189  errhint("Must be superuser to create an event trigger.")));
190 
191  /* Validate event name. */
192  if (strcmp(stmt->eventname, "ddl_command_start") != 0 &&
193  strcmp(stmt->eventname, "ddl_command_end") != 0 &&
194  strcmp(stmt->eventname, "sql_drop") != 0 &&
195  strcmp(stmt->eventname, "table_rewrite") != 0)
196  ereport(ERROR,
197  (errcode(ERRCODE_SYNTAX_ERROR),
198  errmsg("unrecognized event name \"%s\"",
199  stmt->eventname)));
200 
201  /* Validate filter conditions. */
202  foreach(lc, stmt->whenclause)
203  {
204  DefElem *def = (DefElem *) lfirst(lc);
205 
206  if (strcmp(def->defname, "tag") == 0)
207  {
208  if (tags != NULL)
210  tags = (List *) def->arg;
211  }
212  else
213  ereport(ERROR,
214  (errcode(ERRCODE_SYNTAX_ERROR),
215  errmsg("unrecognized filter variable \"%s\"", def->defname)));
216  }
217 
218  /* Validate tag list, if any. */
219  if ((strcmp(stmt->eventname, "ddl_command_start") == 0 ||
220  strcmp(stmt->eventname, "ddl_command_end") == 0 ||
221  strcmp(stmt->eventname, "sql_drop") == 0)
222  && tags != NULL)
223  validate_ddl_tags("tag", tags);
224  else if (strcmp(stmt->eventname, "table_rewrite") == 0
225  && tags != NULL)
226  validate_table_rewrite_tags("tag", tags);
227 
228  /*
229  * Give user a nice error message if an event trigger of the same name
230  * already exists.
231  */
233  if (HeapTupleIsValid(tuple))
234  ereport(ERROR,
236  errmsg("event trigger \"%s\" already exists",
237  stmt->trigname)));
238 
239  /* Find and validate the trigger function. */
240  funcoid = LookupFuncName(stmt->funcname, 0, fargtypes, false);
241  funcrettype = get_func_rettype(funcoid);
242  if (funcrettype != EVTTRIGGEROID)
243  ereport(ERROR,
244  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
245  errmsg("function %s must return type %s",
246  NameListToString(stmt->funcname), "event_trigger")));
247 
248  /* Insert catalog entries. */
249  return insert_event_trigger_tuple(stmt->trigname, stmt->eventname,
250  evtowner, funcoid, tags);
251 }
static void validate_ddl_tags(const char *filtervar, List *taglist)
int errhint(const char *fmt,...)
Definition: elog.c:987
Oid GetUserId(void)
Definition: miscinit.c:379
int errcode(int sqlerrcode)
Definition: elog.c:575
bool superuser(void)
Definition: superuser.c:47
unsigned int Oid
Definition: postgres_ext.h:31
Oid get_func_rettype(Oid funcid)
Definition: lsyscache.c:1444
#define ERROR
Definition: elog.h:43
static void validate_table_rewrite_tags(const char *filtervar, List *taglist)
static void error_duplicate_filter_variable(const char *defname)
#define CStringGetDatum(X)
Definition: postgres.h:563
#define ereport(elevel, rest)
Definition: elog.h:122
Node * arg
Definition: parsenodes.h:731
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1112
char * NameListToString(List *names)
Definition: namespace.c:3082
static Oid insert_event_trigger_tuple(const char *trigname, const char *eventname, Oid evtOwner, Oid funcoid, List *tags)
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define lfirst(lc)
Definition: pg_list.h:106
Oid LookupFuncName(List *funcname, int nargs, const Oid *argtypes, bool noError)
Definition: parse_func.c:1974
int errmsg(const char *fmt,...)
Definition: elog.c:797
char * defname
Definition: parsenodes.h:730
#define ERRCODE_DUPLICATE_OBJECT
Definition: streamutil.c:32
Definition: pg_list.h:45

◆ error_duplicate_filter_variable()

static void error_duplicate_filter_variable ( const char *  defname)
static

Definition at line 365 of file event_trigger.c.

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

Referenced by CreateEventTrigger().

366 {
367  ereport(ERROR,
368  (errcode(ERRCODE_SYNTAX_ERROR),
369  errmsg("filter variable \"%s\" specified more than once",
370  defname)));
371 }
int errcode(int sqlerrcode)
Definition: elog.c:575
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
int errmsg(const char *fmt,...)
Definition: elog.c:797

◆ EventTriggerAlterTableEnd()

void EventTriggerAlterTableEnd ( void  )

Definition at line 1791 of file event_trigger.c.

References CollectedCommand::alterTable, EventTriggerQueryState::commandCollectionInhibited, EventTriggerQueryState::commandList, EventTriggerQueryState::currentCommand, CollectedCommand::d, lappend(), list_length(), and pfree().

Referenced by AlterTableMoveAll(), and ProcessUtilitySlow().

1792 {
1793  /* ignore if event trigger context not set, or collection disabled */
1794  if (!currentEventTriggerState ||
1796  return;
1797 
1798  /* If no subcommands, don't collect */
1800  {
1804  }
1805  else
1807 
1809 }
struct CollectedCommand::@112::@114 alterTable
union CollectedCommand::@112 d
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
void pfree(void *pointer)
Definition: mcxt.c:1031
CollectedCommand * currentCommand
Definition: event_trigger.c:66
List * lappend(List *list, void *datum)
Definition: list.c:128
static int list_length(const List *l)
Definition: pg_list.h:89

◆ EventTriggerAlterTableRelid()

void EventTriggerAlterTableRelid ( Oid  objectId)

Definition at line 1739 of file event_trigger.c.

References CollectedCommand::alterTable, EventTriggerQueryState::commandCollectionInhibited, EventTriggerQueryState::currentCommand, and CollectedCommand::d.

Referenced by AlterTableInternal(), and ProcessUtilitySlow().

1740 {
1741  if (!currentEventTriggerState ||
1743  return;
1744 
1745  currentEventTriggerState->currentCommand->d.alterTable.objectId = objectId;
1746 }
struct CollectedCommand::@112::@114 alterTable
union CollectedCommand::@112 d
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
CollectedCommand * currentCommand
Definition: event_trigger.c:66

◆ EventTriggerAlterTableStart()

void EventTriggerAlterTableStart ( Node parsetree)

Definition at line 1706 of file event_trigger.c.

References CollectedCommand::alterTable, EventTriggerQueryState::commandCollectionInhibited, copyObject, creating_extension, EventTriggerQueryState::currentCommand, EventTriggerQueryState::cxt, CollectedCommand::d, CollectedCommand::in_extension, InvalidOid, MemoryContextSwitchTo(), NIL, palloc(), CollectedCommand::parsetree, SCT_AlterTable, and CollectedCommand::type.

Referenced by AlterTableMoveAll(), and ProcessUtilitySlow().

1707 {
1708  MemoryContext oldcxt;
1709  CollectedCommand *command;
1710 
1711  /* ignore if event trigger context not set, or collection disabled */
1712  if (!currentEventTriggerState ||
1714  return;
1715 
1717 
1718  command = palloc(sizeof(CollectedCommand));
1719 
1720  command->type = SCT_AlterTable;
1721  command->in_extension = creating_extension;
1722 
1723  command->d.alterTable.classId = RelationRelationId;
1724  command->d.alterTable.objectId = InvalidOid;
1725  command->d.alterTable.subcmds = NIL;
1726  command->parsetree = copyObject(parsetree);
1727 
1729 
1730  MemoryContextSwitchTo(oldcxt);
1731 }
#define NIL
Definition: pg_list.h:69
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
struct CollectedCommand::@112::@114 alterTable
union CollectedCommand::@112 d
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
CollectedCommand * currentCommand
Definition: event_trigger.c:66
#define InvalidOid
Definition: postgres_ext.h:36
bool creating_extension
Definition: extension.c:67
void * palloc(Size size)
Definition: mcxt.c:924
#define copyObject(obj)
Definition: nodes.h:630

◆ EventTriggerBeginCompleteQuery()

bool EventTriggerBeginCompleteQuery ( void  )

Definition at line 1231 of file event_trigger.c.

References ALLOCSET_DEFAULT_SIZES, AllocSetContextCreate, EventTriggerQueryState::commandCollectionInhibited, EventTriggerQueryState::commandList, EventTriggerQueryState::currentCommand, currentEventTriggerState, EventTriggerQueryState::cxt, EventTriggerQueryState::in_sql_drop, InvalidOid, MemoryContextAlloc(), NIL, EventTriggerQueryState::previous, slist_init(), EventTriggerQueryState::SQLDropList, EventTriggerQueryState::table_rewrite_oid, TopMemoryContext, and trackDroppedObjectsNeeded().

Referenced by ProcessUtilitySlow().

1232 {
1234  MemoryContext cxt;
1235 
1236  /*
1237  * Currently, sql_drop, table_rewrite, ddl_command_end events are the only
1238  * reason to have event trigger state at all; so if there are none, don't
1239  * install one.
1240  */
1242  return false;
1243 
1245  "event trigger state",
1247  state = MemoryContextAlloc(cxt, sizeof(EventTriggerQueryState));
1248  state->cxt = cxt;
1249  slist_init(&(state->SQLDropList));
1250  state->in_sql_drop = false;
1251  state->table_rewrite_oid = InvalidOid;
1252 
1255  state->currentCommand = NULL;
1256  state->commandList = NIL;
1258  currentEventTriggerState = state;
1259 
1260  return true;
1261 }
#define NIL
Definition: pg_list.h:69
bool trackDroppedObjectsNeeded(void)
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
static void slist_init(slist_head *head)
Definition: ilist.h:554
#define ALLOCSET_DEFAULT_SIZES
Definition: memutils.h:192
CollectedCommand * currentCommand
Definition: event_trigger.c:66
struct EventTriggerQueryState * previous
Definition: event_trigger.c:69
MemoryContext TopMemoryContext
Definition: mcxt.c:44
#define AllocSetContextCreate(parent, name, allocparams)
Definition: memutils.h:170
#define InvalidOid
Definition: postgres_ext.h:36
Definition: regguts.h:298
void * MemoryContextAlloc(MemoryContext context, Size size)
Definition: mcxt.c:771

◆ EventTriggerCollectAlterDefPrivs()

void EventTriggerCollectAlterDefPrivs ( AlterDefaultPrivilegesStmt stmt)

Definition at line 1965 of file event_trigger.c.

References AlterDefaultPrivilegesStmt::action, EventTriggerQueryState::commandCollectionInhibited, EventTriggerQueryState::commandList, copyObject, creating_extension, EventTriggerQueryState::cxt, CollectedCommand::d, CollectedCommand::defprivs, CollectedCommand::in_extension, lappend(), MemoryContextSwitchTo(), GrantStmt::objtype, palloc0(), CollectedCommand::parsetree, SCT_AlterDefaultPrivileges, and CollectedCommand::type.

Referenced by ProcessUtilitySlow().

1966 {
1967  MemoryContext oldcxt;
1968  CollectedCommand *command;
1969 
1970  /* ignore if event trigger context not set, or collection disabled */
1971  if (!currentEventTriggerState ||
1973  return;
1974 
1976 
1977  command = palloc0(sizeof(CollectedCommand));
1978  command->type = SCT_AlterDefaultPrivileges;
1979  command->d.defprivs.objtype = stmt->action->objtype;
1980  command->in_extension = creating_extension;
1981  command->parsetree = (Node *) copyObject(stmt);
1982 
1985  MemoryContextSwitchTo(oldcxt);
1986 }
struct CollectedCommand::@112::@119 defprivs
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:517
union CollectedCommand::@112 d
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
List * lappend(List *list, void *datum)
Definition: list.c:128
void * palloc0(Size size)
Definition: mcxt.c:955
bool creating_extension
Definition: extension.c:67
ObjectType objtype
Definition: parsenodes.h:1872
#define copyObject(obj)
Definition: nodes.h:630

◆ EventTriggerCollectAlterOpFam()

void EventTriggerCollectAlterOpFam ( AlterOpFamilyStmt stmt,
Oid  opfamoid,
List operators,
List procedures 
)

Definition at line 1863 of file event_trigger.c.

References EventTriggerQueryState::commandCollectionInhibited, EventTriggerQueryState::commandList, copyObject, creating_extension, EventTriggerQueryState::cxt, CollectedCommand::d, CollectedCommand::in_extension, lappend(), MemoryContextSwitchTo(), ObjectAddressSet, CollectedCommand::opfam, palloc(), CollectedCommand::parsetree, SCT_AlterOpFamily, and CollectedCommand::type.

Referenced by AlterOpFamilyAdd(), and AlterOpFamilyDrop().

1865 {
1866  MemoryContext oldcxt;
1867  CollectedCommand *command;
1868 
1869  /* ignore if event trigger context not set, or collection disabled */
1870  if (!currentEventTriggerState ||
1872  return;
1873 
1875 
1876  command = palloc(sizeof(CollectedCommand));
1877  command->type = SCT_AlterOpFamily;
1878  command->in_extension = creating_extension;
1879  ObjectAddressSet(command->d.opfam.address,
1880  OperatorFamilyRelationId, opfamoid);
1881  command->d.opfam.operators = operators;
1882  command->d.opfam.procedures = procedures;
1883  command->parsetree = (Node *) copyObject(stmt);
1884 
1887 
1888  MemoryContextSwitchTo(oldcxt);
1889 }
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:517
struct CollectedCommand::@112::@116 opfam
union CollectedCommand::@112 d
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
List * lappend(List *list, void *datum)
Definition: list.c:128
bool creating_extension
Definition: extension.c:67
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
void * palloc(Size size)
Definition: mcxt.c:924
#define copyObject(obj)
Definition: nodes.h:630

◆ EventTriggerCollectAlterTableSubcmd()

void EventTriggerCollectAlterTableSubcmd ( Node subcmd,
ObjectAddress  address 
)

Definition at line 1757 of file event_trigger.c.

References CollectedATSubcmd::address, CollectedCommand::alterTable, Assert, EventTriggerQueryState::commandCollectionInhibited, copyObject, EventTriggerQueryState::currentCommand, EventTriggerQueryState::cxt, CollectedCommand::d, IsA, lappend(), MemoryContextSwitchTo(), newsub(), OidIsValid, palloc(), and CollectedATSubcmd::parsetree.

Referenced by ATExecCmd().

1758 {
1759  MemoryContext oldcxt;
1761 
1762  /* ignore if event trigger context not set, or collection disabled */
1763  if (!currentEventTriggerState ||
1765  return;
1766 
1767  Assert(IsA(subcmd, AlterTableCmd));
1769 
1771 
1772  newsub = palloc(sizeof(CollectedATSubcmd));
1773  newsub->address = address;
1774  newsub->parsetree = copyObject(subcmd);
1775 
1778 
1779  MemoryContextSwitchTo(oldcxt);
1780 }
#define IsA(nodeptr, _type_)
Definition: nodes.h:568
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
struct CollectedCommand::@112::@114 alterTable
union CollectedCommand::@112 d
#define OidIsValid(objectId)
Definition: c.h:605
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
CollectedCommand * currentCommand
Definition: event_trigger.c:66
List * lappend(List *list, void *datum)
Definition: list.c:128
#define Assert(condition)
Definition: c.h:699
void * palloc(Size size)
Definition: mcxt.c:924
#define copyObject(obj)
Definition: nodes.h:630
static color newsub(struct colormap *cm, color co)
Definition: regc_color.c:389
ObjectAddress address

◆ EventTriggerCollectAlterTSConfig()

void EventTriggerCollectAlterTSConfig ( AlterTSConfigurationStmt stmt,
Oid  cfgId,
Oid dictIds,
int  ndicts 
)

Definition at line 1930 of file event_trigger.c.

References CollectedCommand::atscfg, EventTriggerQueryState::commandCollectionInhibited, EventTriggerQueryState::commandList, copyObject, creating_extension, EventTriggerQueryState::cxt, CollectedCommand::d, CollectedCommand::in_extension, lappend(), MemoryContextSwitchTo(), ObjectAddressSet, palloc(), palloc0(), CollectedCommand::parsetree, SCT_AlterTSConfig, and CollectedCommand::type.

Referenced by DropConfigurationMapping(), and MakeConfigurationMapping().

1932 {
1933  MemoryContext oldcxt;
1934  CollectedCommand *command;
1935 
1936  /* ignore if event trigger context not set, or collection disabled */
1937  if (!currentEventTriggerState ||
1939  return;
1940 
1942 
1943  command = palloc0(sizeof(CollectedCommand));
1944  command->type = SCT_AlterTSConfig;
1945  command->in_extension = creating_extension;
1946  ObjectAddressSet(command->d.atscfg.address,
1947  TSConfigRelationId, cfgId);
1948  command->d.atscfg.dictIds = palloc(sizeof(Oid) * ndicts);
1949  memcpy(command->d.atscfg.dictIds, dictIds, sizeof(Oid) * ndicts);
1950  command->d.atscfg.ndicts = ndicts;
1951  command->parsetree = (Node *) copyObject(stmt);
1952 
1955 
1956  MemoryContextSwitchTo(oldcxt);
1957 }
struct CollectedCommand::@112::@118 atscfg
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:517
union CollectedCommand::@112 d
CollectedCommandType type
unsigned int Oid
Definition: postgres_ext.h:31
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
List * lappend(List *list, void *datum)
Definition: list.c:128
void * palloc0(Size size)
Definition: mcxt.c:955
bool creating_extension
Definition: extension.c:67
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
void * palloc(Size size)
Definition: mcxt.c:924
#define copyObject(obj)
Definition: nodes.h:630

◆ EventTriggerCollectCreateOpClass()

void EventTriggerCollectCreateOpClass ( CreateOpClassStmt stmt,
Oid  opcoid,
List operators,
List procedures 
)

Definition at line 1896 of file event_trigger.c.

References EventTriggerQueryState::commandCollectionInhibited, EventTriggerQueryState::commandList, copyObject, CollectedCommand::createopc, creating_extension, EventTriggerQueryState::cxt, CollectedCommand::d, CollectedCommand::in_extension, lappend(), MemoryContextSwitchTo(), ObjectAddressSet, palloc0(), CollectedCommand::parsetree, SCT_CreateOpClass, and CollectedCommand::type.

Referenced by DefineOpClass().

1898 {
1899  MemoryContext oldcxt;
1900  CollectedCommand *command;
1901 
1902  /* ignore if event trigger context not set, or collection disabled */
1903  if (!currentEventTriggerState ||
1905  return;
1906 
1908 
1909  command = palloc0(sizeof(CollectedCommand));
1910  command->type = SCT_CreateOpClass;
1911  command->in_extension = creating_extension;
1912  ObjectAddressSet(command->d.createopc.address,
1913  OperatorClassRelationId, opcoid);
1914  command->d.createopc.operators = operators;
1915  command->d.createopc.procedures = procedures;
1916  command->parsetree = (Node *) copyObject(stmt);
1917 
1920 
1921  MemoryContextSwitchTo(oldcxt);
1922 }
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:517
union CollectedCommand::@112 d
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
struct CollectedCommand::@112::@117 createopc
List * lappend(List *list, void *datum)
Definition: list.c:128
void * palloc0(Size size)
Definition: mcxt.c:955
bool creating_extension
Definition: extension.c:67
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define copyObject(obj)
Definition: nodes.h:630

◆ EventTriggerCollectGrant()

void EventTriggerCollectGrant ( InternalGrant istmt)

Definition at line 1819 of file event_trigger.c.

References InternalGrant::col_privs, EventTriggerQueryState::commandCollectionInhibited, EventTriggerQueryState::commandList, copyObject, creating_extension, EventTriggerQueryState::cxt, CollectedCommand::d, CollectedCommand::grant, InternalGrant::grantees, CollectedCommand::in_extension, lappend(), lfirst, list_copy(), MemoryContextSwitchTo(), NIL, InternalGrant::objects, palloc(), CollectedCommand::parsetree, SCT_Grant, and CollectedCommand::type.

Referenced by ExecGrantStmt_oids().

1820 {
1821  MemoryContext oldcxt;
1822  CollectedCommand *command;
1823  InternalGrant *icopy;
1824  ListCell *cell;
1825 
1826  /* ignore if event trigger context not set, or collection disabled */
1827  if (!currentEventTriggerState ||
1829  return;
1830 
1832 
1833  /*
1834  * This is tedious, but necessary.
1835  */
1836  icopy = palloc(sizeof(InternalGrant));
1837  memcpy(icopy, istmt, sizeof(InternalGrant));
1838  icopy->objects = list_copy(istmt->objects);
1839  icopy->grantees = list_copy(istmt->grantees);
1840  icopy->col_privs = NIL;
1841  foreach(cell, istmt->col_privs)
1842  icopy->col_privs = lappend(icopy->col_privs, copyObject(lfirst(cell)));
1843 
1844  /* Now collect it, using the copied InternalGrant */
1845  command = palloc(sizeof(CollectedCommand));
1846  command->type = SCT_Grant;
1847  command->in_extension = creating_extension;
1848  command->d.grant.istmt = icopy;
1849  command->parsetree = NULL;
1850 
1853 
1854  MemoryContextSwitchTo(oldcxt);
1855 }
struct CollectedCommand::@112::@115 grant
#define NIL
Definition: pg_list.h:69
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
List * list_copy(const List *oldlist)
Definition: list.c:1160
union CollectedCommand::@112 d
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
List * lappend(List *list, void *datum)
Definition: list.c:128
bool creating_extension
Definition: extension.c:67
#define lfirst(lc)
Definition: pg_list.h:106
void * palloc(Size size)
Definition: mcxt.c:924
#define copyObject(obj)
Definition: nodes.h:630

◆ EventTriggerCollectSimpleCommand()

void EventTriggerCollectSimpleCommand ( ObjectAddress  address,
ObjectAddress  secondaryObject,
Node parsetree 
)

Definition at line 1663 of file event_trigger.c.

References EventTriggerQueryState::commandCollectionInhibited, EventTriggerQueryState::commandList, copyObject, creating_extension, EventTriggerQueryState::cxt, CollectedCommand::d, CollectedCommand::in_extension, lappend(), MemoryContextSwitchTo(), palloc(), CollectedCommand::parsetree, SCT_Simple, CollectedCommand::simple, and CollectedCommand::type.

Referenced by AlterPublicationOptions(), CreateSchemaCommand(), ProcessUtilitySlow(), and PublicationAddTables().

1666 {
1667  MemoryContext oldcxt;
1668  CollectedCommand *command;
1669 
1670  /* ignore if event trigger context not set, or collection disabled */
1671  if (!currentEventTriggerState ||
1673  return;
1674 
1676 
1677  command = palloc(sizeof(CollectedCommand));
1678 
1679  command->type = SCT_Simple;
1680  command->in_extension = creating_extension;
1681 
1682  command->d.simple.address = address;
1683  command->d.simple.secondaryObject = secondaryObject;
1684  command->parsetree = copyObject(parsetree);
1685 
1687  command);
1688 
1689  MemoryContextSwitchTo(oldcxt);
1690 }
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
union CollectedCommand::@112 d
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
List * lappend(List *list, void *datum)
Definition: list.c:128
bool creating_extension
Definition: extension.c:67
struct CollectedCommand::@112::@113 simple
void * palloc(Size size)
Definition: mcxt.c:924
#define copyObject(obj)
Definition: nodes.h:630

◆ EventTriggerCommonSetup()

static List* EventTriggerCommonSetup ( Node parsetree,
EventTriggerEvent  event,
const char *  eventstr,
EventTriggerData trigdata 
)
static

Definition at line 694 of file event_trigger.c.

References check_ddl_tag(), check_table_rewrite_ddl_tag(), CreateCommandTag(), elog, ERROR, EventTriggerData::event, EVENT_TRIGGER_COMMAND_TAG_OK, EventCacheLookup(), EVT_DDLCommandEnd, EVT_DDLCommandStart, EVT_SQLDrop, EVT_TableRewrite, filter_event_trigger(), EventTriggerCacheItem::fnoid, lappend_oid(), lfirst, NIL, EventTriggerData::parsetree, T_EventTriggerData, EventTriggerData::tag, and EventTriggerData::type.

Referenced by EventTriggerDDLCommandEnd(), EventTriggerDDLCommandStart(), EventTriggerSQLDrop(), and EventTriggerTableRewrite().

697 {
698  const char *tag;
699  List *cachelist;
700  ListCell *lc;
701  List *runlist = NIL;
702 
703  /*
704  * We want the list of command tags for which this procedure is actually
705  * invoked to match up exactly with the list that CREATE EVENT TRIGGER
706  * accepts. This debugging cross-check will throw an error if this
707  * function is invoked for a command tag that CREATE EVENT TRIGGER won't
708  * accept. (Unfortunately, there doesn't seem to be any simple, automated
709  * way to verify that CREATE EVENT TRIGGER doesn't accept extra stuff that
710  * never reaches this control point.)
711  *
712  * If this cross-check fails for you, you probably need to either adjust
713  * standard_ProcessUtility() not to invoke event triggers for the command
714  * type in question, or you need to adjust check_ddl_tag to accept the
715  * relevant command tag.
716  */
717 #ifdef USE_ASSERT_CHECKING
718  {
719  const char *dbgtag;
720 
721  dbgtag = CreateCommandTag(parsetree);
722  if (event == EVT_DDLCommandStart ||
723  event == EVT_DDLCommandEnd ||
724  event == EVT_SQLDrop)
725  {
727  elog(ERROR, "unexpected command tag \"%s\"", dbgtag);
728  }
729  else if (event == EVT_TableRewrite)
730  {
732  elog(ERROR, "unexpected command tag \"%s\"", dbgtag);
733  }
734  }
735 #endif
736 
737  /* Use cache to find triggers for this event; fast exit if none. */
738  cachelist = EventCacheLookup(event);
739  if (cachelist == NIL)
740  return NIL;
741 
742  /* Get the command tag. */
743  tag = CreateCommandTag(parsetree);
744 
745  /*
746  * Filter list of event triggers by command tag, and copy them into our
747  * memory context. Once we start running the command triggers, or indeed
748  * once we do anything at all that touches the catalogs, an invalidation
749  * might leave cachelist pointing at garbage, so we must do this before we
750  * can do much else.
751  */
752  foreach(lc, cachelist)
753  {
754  EventTriggerCacheItem *item = lfirst(lc);
755 
756  if (filter_event_trigger(&tag, item))
757  {
758  /* We must plan to fire this trigger. */
759  runlist = lappend_oid(runlist, item->fnoid);
760  }
761  }
762 
763  /* don't spend any more time on this if no functions to run */
764  if (runlist == NIL)
765  return NIL;
766 
767  trigdata->type = T_EventTriggerData;
768  trigdata->event = eventstr;
769  trigdata->parsetree = parsetree;
770  trigdata->tag = tag;
771 
772  return runlist;
773 }
#define NIL
Definition: pg_list.h:69
const char * tag
Definition: event_trigger.h:28
List * lappend_oid(List *list, Oid datum)
Definition: list.c:164
static event_trigger_command_tag_check_result check_ddl_tag(const char *tag)
static bool filter_event_trigger(const char **tag, EventTriggerCacheItem *item)
#define ERROR
Definition: elog.h:43
static event_trigger_command_tag_check_result check_table_rewrite_ddl_tag(const char *tag)
const char * event
Definition: event_trigger.h:26
const char * CreateCommandTag(Node *parsetree)
Definition: utility.c:2070
#define lfirst(lc)
Definition: pg_list.h:106
List * EventCacheLookup(EventTriggerEvent event)
Definition: evtcache.c:64
#define elog
Definition: elog.h:219
Definition: pg_list.h:45

◆ EventTriggerDDLCommandEnd()

void EventTriggerDDLCommandEnd ( Node parsetree)

Definition at line 827 of file event_trigger.c.

References CommandCounterIncrement(), EventTriggerCommonSetup(), EventTriggerInvoke(), EVT_DDLCommandEnd, IsUnderPostmaster, list_free(), and NIL.

Referenced by ProcessUtilitySlow().

828 {
829  List *runlist;
830  EventTriggerData trigdata;
831 
832  /*
833  * See EventTriggerDDLCommandStart for a discussion about why event
834  * triggers are disabled in single user mode.
835  */
836  if (!IsUnderPostmaster)
837  return;
838 
839  /*
840  * Also do nothing if our state isn't set up, which it won't be if there
841  * weren't any relevant event triggers at the start of the current DDL
842  * command. This test might therefore seem optional, but it's important
843  * because EventTriggerCommonSetup might find triggers that didn't exist
844  * at the time the command started. Although this function itself
845  * wouldn't crash, the event trigger functions would presumably call
846  * pg_event_trigger_ddl_commands which would fail. Better to do nothing
847  * until the next command.
848  */
850  return;
851 
852  runlist = EventTriggerCommonSetup(parsetree,
853  EVT_DDLCommandEnd, "ddl_command_end",
854  &trigdata);
855  if (runlist == NIL)
856  return;
857 
858  /*
859  * Make sure anything the main command did will be visible to the event
860  * triggers.
861  */
863 
864  /* Run the triggers. */
865  EventTriggerInvoke(runlist, &trigdata);
866 
867  /* Cleanup. */
868  list_free(runlist);
869 }
#define NIL
Definition: pg_list.h:69
static void EventTriggerInvoke(List *fn_oid_list, EventTriggerData *trigdata)
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
static List * EventTriggerCommonSetup(Node *parsetree, EventTriggerEvent event, const char *eventstr, EventTriggerData *trigdata)
bool IsUnderPostmaster
Definition: globals.c:110
void CommandCounterIncrement(void)
Definition: xact.c:914
void list_free(List *list)
Definition: list.c:1133
Definition: pg_list.h:45

◆ EventTriggerDDLCommandStart()

void EventTriggerDDLCommandStart ( Node parsetree)

Definition at line 779 of file event_trigger.c.

References CommandCounterIncrement(), EventTriggerCommonSetup(), EventTriggerInvoke(), EVT_DDLCommandStart, IsUnderPostmaster, list_free(), and NIL.

Referenced by ProcessUtilitySlow().

780 {
781  List *runlist;
782  EventTriggerData trigdata;
783 
784  /*
785  * Event Triggers are completely disabled in standalone mode. There are
786  * (at least) two reasons for this:
787  *
788  * 1. A sufficiently broken event trigger might not only render the
789  * database unusable, but prevent disabling itself to fix the situation.
790  * In this scenario, restarting in standalone mode provides an escape
791  * hatch.
792  *
793  * 2. BuildEventTriggerCache relies on systable_beginscan_ordered, and
794  * therefore will malfunction if pg_event_trigger's indexes are damaged.
795  * To allow recovery from a damaged index, we need some operating mode
796  * wherein event triggers are disabled. (Or we could implement
797  * heapscan-and-sort logic for that case, but having disaster recovery
798  * scenarios depend on code that's otherwise untested isn't appetizing.)
799  */
800  if (!IsUnderPostmaster)
801  return;
802 
803  runlist = EventTriggerCommonSetup(parsetree,
805  "ddl_command_start",
806  &trigdata);
807  if (runlist == NIL)
808  return;
809 
810  /* Run the triggers. */
811  EventTriggerInvoke(runlist, &trigdata);
812 
813  /* Cleanup. */
814  list_free(runlist);
815 
816  /*
817  * Make sure anything the event triggers did will be visible to the main
818  * command.
819  */
821 }
#define NIL
Definition: pg_list.h:69
static void EventTriggerInvoke(List *fn_oid_list, EventTriggerData *trigdata)
static List * EventTriggerCommonSetup(Node *parsetree, EventTriggerEvent event, const char *eventstr, EventTriggerData *trigdata)
bool IsUnderPostmaster
Definition: globals.c:110
void CommandCounterIncrement(void)
Definition: xact.c:914
void list_free(List *list)
Definition: list.c:1133
Definition: pg_list.h:45

◆ EventTriggerEndCompleteQuery()

void EventTriggerEndCompleteQuery ( void  )

Definition at line 1275 of file event_trigger.c.

References EventTriggerQueryState::cxt, MemoryContextDelete(), and EventTriggerQueryState::previous.

Referenced by ProcessUtilitySlow().

1276 {
1277  EventTriggerQueryState *prevstate;
1278 
1279  prevstate = currentEventTriggerState->previous;
1280 
1281  /* this avoids the need for retail pfree of SQLDropList items: */
1283 
1284  currentEventTriggerState = prevstate;
1285 }
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:211
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
struct EventTriggerQueryState * previous
Definition: event_trigger.c:69

◆ EventTriggerInhibitCommandCollection()

void EventTriggerInhibitCommandCollection ( void  )

Definition at line 1629 of file event_trigger.c.

References EventTriggerQueryState::commandCollectionInhibited.

Referenced by ProcessUtilitySlow().

1630 {
1632  return;
1633 
1635 }
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72

◆ EventTriggerInvoke()

static void EventTriggerInvoke ( List fn_oid_list,
EventTriggerData trigdata 
)
static

Definition at line 1029 of file event_trigger.c.

References ALLOCSET_DEFAULT_SIZES, AllocSetContextCreate, check_stack_depth(), CommandCounterIncrement(), CurrentMemoryContext, DEBUG1, elog, fmgr_info(), FunctionCallInvoke, InitFunctionCallInfoData, InvalidOid, lfirst_oid, MemoryContextDelete(), MemoryContextReset(), MemoryContextSwitchTo(), pgstat_end_function_usage(), and pgstat_init_function_usage().

Referenced by EventTriggerDDLCommandEnd(), EventTriggerDDLCommandStart(), EventTriggerSQLDrop(), and EventTriggerTableRewrite().

1030 {
1031  MemoryContext context;
1032  MemoryContext oldcontext;
1033  ListCell *lc;
1034  bool first = true;
1035 
1036  /* Guard against stack overflow due to recursive event trigger */
1038 
1039  /*
1040  * Let's evaluate event triggers in their own memory context, so that any
1041  * leaks get cleaned up promptly.
1042  */
1044  "event trigger context",
1046  oldcontext = MemoryContextSwitchTo(context);
1047 
1048  /* Call each event trigger. */
1049  foreach(lc, fn_oid_list)
1050  {
1051  Oid fnoid = lfirst_oid(lc);
1052  FmgrInfo flinfo;
1053  FunctionCallInfoData fcinfo;
1054  PgStat_FunctionCallUsage fcusage;
1055 
1056  elog(DEBUG1, "EventTriggerInvoke %u", fnoid);
1057 
1058  /*
1059  * We want each event trigger to be able to see the results of the
1060  * previous event trigger's action. Caller is responsible for any
1061  * command-counter increment that is needed between the event trigger
1062  * and anything else in the transaction.
1063  */
1064  if (first)
1065  first = false;
1066  else
1068 
1069  /* Look up the function */
1070  fmgr_info(fnoid, &flinfo);
1071 
1072  /* Call the function, passing no arguments but setting a context. */
1073  InitFunctionCallInfoData(fcinfo, &flinfo, 0,
1074  InvalidOid, (Node *) trigdata, NULL);
1075  pgstat_init_function_usage(&fcinfo, &fcusage);
1076  FunctionCallInvoke(&fcinfo);
1077  pgstat_end_function_usage(&fcusage, true);
1078 
1079  /* Reclaim memory. */
1080  MemoryContextReset(context);
1081  }
1082 
1083  /* Restore old memory context and delete the temporary one. */
1084  MemoryContextSwitchTo(oldcontext);
1085  MemoryContextDelete(context);
1086 }
Definition: fmgr.h:56
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:211
#define DEBUG1
Definition: elog.h:25
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:517
void MemoryContextReset(MemoryContext context)
Definition: mcxt.c:136
unsigned int Oid
Definition: postgres_ext.h:31
void fmgr_info(Oid functionId, FmgrInfo *finfo)
Definition: fmgr.c:124
#define ALLOCSET_DEFAULT_SIZES
Definition: memutils.h:192
#define FunctionCallInvoke(fcinfo)
Definition: fmgr.h:142
void check_stack_depth(void)
Definition: postgres.c:3159
MemoryContext CurrentMemoryContext
Definition: mcxt.c:38
#define AllocSetContextCreate(parent, name, allocparams)
Definition: memutils.h:170
void CommandCounterIncrement(void)
Definition: xact.c:914
#define InvalidOid
Definition: postgres_ext.h:36
#define InitFunctionCallInfoData(Fcinfo, Flinfo, Nargs, Collation, Context, Resultinfo)
Definition: fmgr.h:125
void pgstat_end_function_usage(PgStat_FunctionCallUsage *fcu, bool finalize)
Definition: pgstat.c:1653
void pgstat_init_function_usage(FunctionCallInfoData *fcinfo, PgStat_FunctionCallUsage *fcu)
Definition: pgstat.c:1581
#define elog
Definition: elog.h:219
#define lfirst_oid(lc)
Definition: pg_list.h:108

◆ EventTriggerSQLDrop()

void EventTriggerSQLDrop ( Node parsetree)

Definition at line 875 of file event_trigger.c.

References CommandCounterIncrement(), EventTriggerCommonSetup(), EventTriggerInvoke(), EVT_SQLDrop, EventTriggerQueryState::in_sql_drop, IsUnderPostmaster, list_free(), NIL, PG_CATCH, PG_END_TRY, PG_RE_THROW, PG_TRY, slist_is_empty(), and EventTriggerQueryState::SQLDropList.

Referenced by ProcessUtilitySlow().

876 {
877  List *runlist;
878  EventTriggerData trigdata;
879 
880  /*
881  * See EventTriggerDDLCommandStart for a discussion about why event
882  * triggers are disabled in single user mode.
883  */
884  if (!IsUnderPostmaster)
885  return;
886 
887  /*
888  * Use current state to determine whether this event fires at all. If
889  * there are no triggers for the sql_drop event, then we don't have
890  * anything to do here. Note that dropped object collection is disabled
891  * if this is the case, so even if we were to try to run, the list would
892  * be empty.
893  */
896  return;
897 
898  runlist = EventTriggerCommonSetup(parsetree,
899  EVT_SQLDrop, "sql_drop",
900  &trigdata);
901 
902  /*
903  * Nothing to do if run list is empty. Note this typically can't happen,
904  * because if there are no sql_drop events, then objects-to-drop wouldn't
905  * have been collected in the first place and we would have quit above.
906  * But it could occur if event triggers were dropped partway through.
907  */
908  if (runlist == NIL)
909  return;
910 
911  /*
912  * Make sure anything the main command did will be visible to the event
913  * triggers.
914  */
916 
917  /*
918  * Make sure pg_event_trigger_dropped_objects only works when running
919  * these triggers. Use PG_TRY to ensure in_sql_drop is reset even when
920  * one trigger fails. (This is perhaps not necessary, as the currentState
921  * variable will be removed shortly by our caller, but it seems better to
922  * play safe.)
923  */
925 
926  /* Run the triggers. */
927  PG_TRY();
928  {
929  EventTriggerInvoke(runlist, &trigdata);
930  }
931  PG_CATCH();
932  {
934  PG_RE_THROW();
935  }
936  PG_END_TRY();
938 
939  /* Cleanup. */
940  list_free(runlist);
941 }
#define NIL
Definition: pg_list.h:69
static void EventTriggerInvoke(List *fn_oid_list, EventTriggerData *trigdata)
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
static List * EventTriggerCommonSetup(Node *parsetree, EventTriggerEvent event, const char *eventstr, EventTriggerData *trigdata)
bool IsUnderPostmaster
Definition: globals.c:110
static bool slist_is_empty(slist_head *head)
Definition: ilist.h:563
void CommandCounterIncrement(void)
Definition: xact.c:914
#define PG_CATCH()
Definition: elog.h:293
#define PG_RE_THROW()
Definition: elog.h:314
void list_free(List *list)
Definition: list.c:1133
#define PG_TRY()
Definition: elog.h:284
Definition: pg_list.h:45
#define PG_END_TRY()
Definition: elog.h:300

◆ EventTriggerSQLDropAddObject()

void EventTriggerSQLDropAddObject ( const ObjectAddress object,
bool  original,
bool  normal 
)

Definition at line 1325 of file event_trigger.c.

References AccessShareLock, SQLDropObject::addrargs, SQLDropObject::address, SQLDropObject::addrnames, Assert, attnum, ObjectAddress::classId, EventTriggerQueryState::cxt, DatumGetName, DatumGetObjectId, EventTriggerSupportsObjectClass(), get_catalog_object_by_oid(), get_namespace_name(), get_object_attnum_name(), get_object_attnum_namespace(), get_object_namensp_unique(), getObjectClass(), getObjectIdentityParts(), getObjectTypeDescription(), heap_close, heap_getattr, heap_open(), InvalidAttrNumber, is_objectclass_supported(), isAnyTempNamespace(), SQLDropObject::istemp, isTempNamespace(), MemoryContextSwitchTo(), NameStr, SQLDropObject::next, SQLDropObject::normal, ObjectAddress::objectId, ObjectAddress::objectSubId, SQLDropObject::objecttype, SQLDropObject::objidentity, SQLDropObject::objname, SQLDropObject::original, palloc0(), pfree(), pstrdup(), RelationGetDescr, SQLDropObject::schemaname, slist_push_head(), and EventTriggerQueryState::SQLDropList.

Referenced by deleteObjectsInList(), and DropSubscription().

1326 {
1327  SQLDropObject *obj;
1328  MemoryContext oldcxt;
1329 
1331  return;
1332 
1334 
1335  /* don't report temp schemas except my own */
1336  if (object->classId == NamespaceRelationId &&
1337  (isAnyTempNamespace(object->objectId) &&
1338  !isTempNamespace(object->objectId)))
1339  return;
1340 
1342 
1343  obj = palloc0(sizeof(SQLDropObject));
1344  obj->address = *object;
1345  obj->original = original;
1346  obj->normal = normal;
1347 
1348  /*
1349  * Obtain schema names from the object's catalog tuple, if one exists;
1350  * this lets us skip objects in temp schemas. We trust that
1351  * ObjectProperty contains all object classes that can be
1352  * schema-qualified.
1353  */
1354  if (is_objectclass_supported(object->classId))
1355  {
1356  Relation catalog;
1357  HeapTuple tuple;
1358 
1359  catalog = heap_open(obj->address.classId, AccessShareLock);
1360  tuple = get_catalog_object_by_oid(catalog, obj->address.objectId);
1361 
1362  if (tuple)
1363  {
1365  Datum datum;
1366  bool isnull;
1367 
1369  if (attnum != InvalidAttrNumber)
1370  {
1371  datum = heap_getattr(tuple, attnum,
1372  RelationGetDescr(catalog), &isnull);
1373  if (!isnull)
1374  {
1375  Oid namespaceId;
1376 
1377  namespaceId = DatumGetObjectId(datum);
1378  /* temp objects are only reported if they are my own */
1379  if (isTempNamespace(namespaceId))
1380  {
1381  obj->schemaname = "pg_temp";
1382  obj->istemp = true;
1383  }
1384  else if (isAnyTempNamespace(namespaceId))
1385  {
1386  pfree(obj);
1387  heap_close(catalog, AccessShareLock);
1388  MemoryContextSwitchTo(oldcxt);
1389  return;
1390  }
1391  else
1392  {
1393  obj->schemaname = get_namespace_name(namespaceId);
1394  obj->istemp = false;
1395  }
1396  }
1397  }
1398 
1400  obj->address.objectSubId == 0)
1401  {
1402  attnum = get_object_attnum_name(obj->address.classId);
1403  if (attnum != InvalidAttrNumber)
1404  {
1405  datum = heap_getattr(tuple, attnum,
1406  RelationGetDescr(catalog), &isnull);
1407  if (!isnull)
1408  obj->objname = pstrdup(NameStr(*DatumGetName(datum)));
1409  }
1410  }
1411  }
1412 
1413  heap_close(catalog, AccessShareLock);
1414  }
1415  else
1416  {
1417  if (object->classId == NamespaceRelationId &&
1418  isTempNamespace(object->objectId))
1419  obj->istemp = true;
1420  }
1421 
1422  /* object identity, objname and objargs */
1423  obj->objidentity =
1424  getObjectIdentityParts(&obj->address, &obj->addrnames, &obj->addrargs);
1425 
1426  /* object type */
1428 
1430 
1431  MemoryContextSwitchTo(oldcxt);
1432 }
bool get_object_namensp_unique(Oid class_id)
slist_node next
ObjectAddress address
char * getObjectTypeDescription(const ObjectAddress *object)
#define RelationGetDescr(relation)
Definition: rel.h:433
const char * objname
#define DatumGetObjectId(X)
Definition: postgres.h:485
char * pstrdup(const char *in)
Definition: mcxt.c:1161
char * getObjectIdentityParts(const ObjectAddress *object, List **objname, List **objargs)
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
#define AccessShareLock
Definition: lockdefs.h:36
static void slist_push_head(slist_head *head, slist_node *node)
Definition: ilist.h:574
AttrNumber get_object_attnum_namespace(Oid class_id)
#define heap_close(r, l)
Definition: heapam.h:97
const char * objidentity
unsigned int Oid
Definition: postgres_ext.h:31
ObjectClass getObjectClass(const ObjectAddress *object)
Definition: dependency.c:2416
const char * objecttype
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
#define DatumGetName(X)
Definition: postgres.h:570
void pfree(void *pointer)
Definition: mcxt.c:1031
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3051
bool isTempNamespace(Oid namespaceId)
Definition: namespace.c:3137
bool EventTriggerSupportsObjectClass(ObjectClass objclass)
const char * schemaname
#define heap_getattr(tup, attnum, tupleDesc, isnull)
Definition: htup_details.h:781
AttrNumber get_object_attnum_name(Oid class_id)
void * palloc0(Size size)
Definition: mcxt.c:955
uintptr_t Datum
Definition: postgres.h:367
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1294
int16 attnum
Definition: pg_attribute.h:79
#define Assert(condition)
Definition: c.h:699
HeapTuple get_catalog_object_by_oid(Relation catalog, Oid objectId)
#define InvalidAttrNumber
Definition: attnum.h:23
#define NameStr(name)
Definition: c.h:576
bool isAnyTempNamespace(Oid namespaceId)
Definition: namespace.c:3175
bool is_objectclass_supported(Oid class_id)
int16 AttrNumber
Definition: attnum.h:21

◆ EventTriggerSupportsObjectClass()

bool EventTriggerSupportsObjectClass ( ObjectClass  objclass)

Definition at line 1166 of file event_trigger.c.

References OCLASS_AM, OCLASS_AMOP, OCLASS_AMPROC, OCLASS_CAST, OCLASS_CLASS, OCLASS_COLLATION, OCLASS_CONSTRAINT, OCLASS_CONVERSION, OCLASS_DATABASE, OCLASS_DEFACL, OCLASS_DEFAULT, OCLASS_EVENT_TRIGGER, OCLASS_EXTENSION, OCLASS_FDW, OCLASS_FOREIGN_SERVER, OCLASS_LANGUAGE, OCLASS_LARGEOBJECT, OCLASS_OPCLASS, OCLASS_OPERATOR, OCLASS_OPFAMILY, OCLASS_POLICY, OCLASS_PROC, OCLASS_PUBLICATION, OCLASS_PUBLICATION_REL, OCLASS_REWRITE, OCLASS_ROLE, OCLASS_SCHEMA, OCLASS_STATISTIC_EXT, OCLASS_SUBSCRIPTION, OCLASS_TBLSPACE, OCLASS_TRANSFORM, OCLASS_TRIGGER, OCLASS_TSCONFIG, OCLASS_TSDICT, OCLASS_TSPARSER, OCLASS_TSTEMPLATE, OCLASS_TYPE, and OCLASS_USER_MAPPING.

Referenced by deleteObjectsInList(), and EventTriggerSQLDropAddObject().

1167 {
1168  switch (objclass)
1169  {
1170  case OCLASS_DATABASE:
1171  case OCLASS_TBLSPACE:
1172  case OCLASS_ROLE:
1173  /* no support for global objects */
1174  return false;
1175  case OCLASS_EVENT_TRIGGER:
1176  /* no support for event triggers on event triggers */
1177  return false;
1178  case OCLASS_CLASS:
1179  case OCLASS_PROC:
1180  case OCLASS_TYPE:
1181  case OCLASS_CAST:
1182  case OCLASS_COLLATION:
1183  case OCLASS_CONSTRAINT:
1184  case OCLASS_CONVERSION:
1185  case OCLASS_DEFAULT:
1186  case OCLASS_LANGUAGE:
1187  case OCLASS_LARGEOBJECT:
1188  case OCLASS_OPERATOR:
1189  case OCLASS_OPCLASS:
1190  case OCLASS_OPFAMILY:
1191  case OCLASS_AM:
1192  case OCLASS_AMOP:
1193  case OCLASS_AMPROC:
1194  case OCLASS_REWRITE:
1195  case OCLASS_TRIGGER:
1196  case OCLASS_SCHEMA:
1197  case OCLASS_STATISTIC_EXT:
1198  case OCLASS_TSPARSER:
1199  case OCLASS_TSDICT:
1200  case OCLASS_TSTEMPLATE:
1201  case OCLASS_TSCONFIG:
1202  case OCLASS_FDW:
1203  case OCLASS_FOREIGN_SERVER:
1204  case OCLASS_USER_MAPPING:
1205  case OCLASS_DEFACL:
1206  case OCLASS_EXTENSION:
1207  case OCLASS_POLICY:
1208  case OCLASS_PUBLICATION:
1210  case OCLASS_SUBSCRIPTION:
1211  case OCLASS_TRANSFORM:
1212  return true;
1213 
1214  /*
1215  * There's intentionally no default: case here; we want the
1216  * compiler to warn if a new OCLASS hasn't been handled above.
1217  */
1218  }
1219 
1220  /* Shouldn't get here, but if we do, say "no support" */
1221  return false;
1222 }

◆ EventTriggerSupportsObjectType()

bool EventTriggerSupportsObjectType ( ObjectType  obtype)

Definition at line 1092 of file event_trigger.c.

References OBJECT_ACCESS_METHOD, OBJECT_AGGREGATE, OBJECT_AMOP, OBJECT_AMPROC, OBJECT_ATTRIBUTE, OBJECT_CAST, OBJECT_COLLATION, OBJECT_COLUMN, OBJECT_CONVERSION, OBJECT_DATABASE, OBJECT_DEFACL, OBJECT_DEFAULT, OBJECT_DOMAIN, OBJECT_DOMCONSTRAINT, OBJECT_EVENT_TRIGGER, OBJECT_EXTENSION, OBJECT_FDW, OBJECT_FOREIGN_SERVER, OBJECT_FOREIGN_TABLE, OBJECT_FUNCTION, OBJECT_INDEX, OBJECT_LANGUAGE, OBJECT_LARGEOBJECT, OBJECT_MATVIEW, OBJECT_OPCLASS, OBJECT_OPERATOR, OBJECT_OPFAMILY, OBJECT_POLICY, OBJECT_PROCEDURE, OBJECT_PUBLICATION, OBJECT_PUBLICATION_REL, OBJECT_ROLE, OBJECT_ROUTINE, OBJECT_RULE, OBJECT_SCHEMA, OBJECT_SEQUENCE, OBJECT_STATISTIC_EXT, OBJECT_SUBSCRIPTION, OBJECT_TABCONSTRAINT, OBJECT_TABLE, OBJECT_TABLESPACE, OBJECT_TRANSFORM, OBJECT_TRIGGER, OBJECT_TSCONFIGURATION, OBJECT_TSDICTIONARY, OBJECT_TSPARSER, OBJECT_TSTEMPLATE, OBJECT_TYPE, OBJECT_USER_MAPPING, and OBJECT_VIEW.

Referenced by ExecGrantStmt_oids(), and standard_ProcessUtility().

1093 {
1094  switch (obtype)
1095  {
1096  case OBJECT_DATABASE:
1097  case OBJECT_TABLESPACE:
1098  case OBJECT_ROLE:
1099  /* no support for global objects */
1100  return false;
1101  case OBJECT_EVENT_TRIGGER:
1102  /* no support for event triggers on event triggers */
1103  return false;
1104  case OBJECT_ACCESS_METHOD:
1105  case OBJECT_AGGREGATE:
1106  case OBJECT_AMOP:
1107  case OBJECT_AMPROC:
1108  case OBJECT_ATTRIBUTE:
1109  case OBJECT_CAST:
1110  case OBJECT_COLUMN:
1111  case OBJECT_COLLATION:
1112  case OBJECT_CONVERSION:
1113  case OBJECT_DEFACL:
1114  case OBJECT_DEFAULT:
1115  case OBJECT_DOMAIN:
1116  case OBJECT_DOMCONSTRAINT:
1117  case OBJECT_EXTENSION:
1118  case OBJECT_FDW:
1119  case OBJECT_FOREIGN_SERVER:
1120  case OBJECT_FOREIGN_TABLE:
1121  case OBJECT_FUNCTION:
1122  case OBJECT_INDEX:
1123  case OBJECT_LANGUAGE:
1124  case OBJECT_LARGEOBJECT:
1125  case OBJECT_MATVIEW:
1126  case OBJECT_OPCLASS:
1127  case OBJECT_OPERATOR:
1128  case OBJECT_OPFAMILY:
1129  case OBJECT_POLICY:
1130  case OBJECT_PROCEDURE:
1131  case OBJECT_PUBLICATION:
1133  case OBJECT_ROUTINE:
1134  case OBJECT_RULE:
1135  case OBJECT_SCHEMA:
1136  case OBJECT_SEQUENCE:
1137  case OBJECT_SUBSCRIPTION:
1138  case OBJECT_STATISTIC_EXT:
1139  case OBJECT_TABCONSTRAINT:
1140  case OBJECT_TABLE:
1141  case OBJECT_TRANSFORM:
1142  case OBJECT_TRIGGER:
1144  case OBJECT_TSDICTIONARY:
1145  case OBJECT_TSPARSER:
1146  case OBJECT_TSTEMPLATE:
1147  case OBJECT_TYPE:
1148  case OBJECT_USER_MAPPING:
1149  case OBJECT_VIEW:
1150  return true;
1151 
1152  /*
1153  * There's intentionally no default: case here; we want the
1154  * compiler to warn if a new ObjectType hasn't been handled above.
1155  */
1156  }
1157 
1158  /* Shouldn't get here, but if we do, say "no support" */
1159  return false;
1160 }

◆ EventTriggerTableRewrite()

void EventTriggerTableRewrite ( Node parsetree,
Oid  tableOid,
int  reason 
)

Definition at line 948 of file event_trigger.c.

References CommandCounterIncrement(), EventTriggerCommonSetup(), EventTriggerInvoke(), EVT_TableRewrite, InvalidOid, IsUnderPostmaster, list_free(), NIL, PG_CATCH, PG_END_TRY, PG_RE_THROW, PG_TRY, EventTriggerQueryState::table_rewrite_oid, and EventTriggerQueryState::table_rewrite_reason.

Referenced by ATRewriteTables().

949 {
950  List *runlist;
951  EventTriggerData trigdata;
952 
953  /*
954  * Event Triggers are completely disabled in standalone mode. There are
955  * (at least) two reasons for this:
956  *
957  * 1. A sufficiently broken event trigger might not only render the
958  * database unusable, but prevent disabling itself to fix the situation.
959  * In this scenario, restarting in standalone mode provides an escape
960  * hatch.
961  *
962  * 2. BuildEventTriggerCache relies on systable_beginscan_ordered, and
963  * therefore will malfunction if pg_event_trigger's indexes are damaged.
964  * To allow recovery from a damaged index, we need some operating mode
965  * wherein event triggers are disabled. (Or we could implement
966  * heapscan-and-sort logic for that case, but having disaster recovery
967  * scenarios depend on code that's otherwise untested isn't appetizing.)
968  */
969  if (!IsUnderPostmaster)
970  return;
971 
972  /*
973  * Also do nothing if our state isn't set up, which it won't be if there
974  * weren't any relevant event triggers at the start of the current DDL
975  * command. This test might therefore seem optional, but it's
976  * *necessary*, because EventTriggerCommonSetup might find triggers that
977  * didn't exist at the time the command started.
978  */
980  return;
981 
982  runlist = EventTriggerCommonSetup(parsetree,
984  "table_rewrite",
985  &trigdata);
986  if (runlist == NIL)
987  return;
988 
989  /*
990  * Make sure pg_event_trigger_table_rewrite_oid only works when running
991  * these triggers. Use PG_TRY to ensure table_rewrite_oid is reset even
992  * when one trigger fails. (This is perhaps not necessary, as the
993  * currentState variable will be removed shortly by our caller, but it
994  * seems better to play safe.)
995  */
998 
999  /* Run the triggers. */
1000  PG_TRY();
1001  {
1002  EventTriggerInvoke(runlist, &trigdata);
1003  }
1004  PG_CATCH();
1005  {
1008  PG_RE_THROW();
1009  }
1010  PG_END_TRY();
1011 
1014 
1015  /* Cleanup. */
1016  list_free(runlist);
1017 
1018  /*
1019  * Make sure anything the event triggers did will be visible to the main
1020  * command.
1021  */
1023 }
#define NIL
Definition: pg_list.h:69
static void EventTriggerInvoke(List *fn_oid_list, EventTriggerData *trigdata)
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
static List * EventTriggerCommonSetup(Node *parsetree, EventTriggerEvent event, const char *eventstr, EventTriggerData *trigdata)
bool IsUnderPostmaster
Definition: globals.c:110
void CommandCounterIncrement(void)
Definition: xact.c:914
#define InvalidOid
Definition: postgres_ext.h:36
#define PG_CATCH()
Definition: elog.h:293
#define PG_RE_THROW()
Definition: elog.h:314
void list_free(List *list)
Definition: list.c:1133
#define PG_TRY()
Definition: elog.h:284
Definition: pg_list.h:45
#define PG_END_TRY()
Definition: elog.h:300

◆ EventTriggerUndoInhibitCommandCollection()

void EventTriggerUndoInhibitCommandCollection ( void  )

Definition at line 1641 of file event_trigger.c.

References EventTriggerQueryState::commandCollectionInhibited.

Referenced by ProcessUtilitySlow().

1642 {
1644  return;
1645 
1647 }
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72

◆ filter_event_trigger()

static bool filter_event_trigger ( const char **  tag,
EventTriggerCacheItem item 
)
static

Definition at line 661 of file event_trigger.c.

References EventTriggerCacheItem::enabled, EventTriggerCacheItem::ntags, pg_qsort_strcmp(), SESSION_REPLICATION_ROLE_REPLICA, SessionReplicationRole, EventTriggerCacheItem::tag, TRIGGER_FIRES_ON_ORIGIN, and TRIGGER_FIRES_ON_REPLICA.

Referenced by EventTriggerCommonSetup().

662 {
663  /*
664  * Filter by session replication role, knowing that we never see disabled
665  * items down here.
666  */
668  {
669  if (item->enabled == TRIGGER_FIRES_ON_ORIGIN)
670  return false;
671  }
672  else
673  {
674  if (item->enabled == TRIGGER_FIRES_ON_REPLICA)
675  return false;
676  }
677 
678  /* Filter by tags, if any were specified. */
679  if (item->ntags != 0 && bsearch(tag, item->tag,
680  item->ntags, sizeof(char *),
681  pg_qsort_strcmp) == NULL)
682  return false;
683 
684  /* if we reach that point, we're not filtering out this item */
685  return true;
686 }
#define TRIGGER_FIRES_ON_ORIGIN
Definition: trigger.h:155
int SessionReplicationRole
Definition: trigger.c:66
#define SESSION_REPLICATION_ROLE_REPLICA
Definition: trigger.h:147
int pg_qsort_strcmp(const void *a, const void *b)
Definition: qsort.c:232
#define TRIGGER_FIRES_ON_REPLICA
Definition: trigger.h:157

◆ filter_list_to_array()

static Datum filter_list_to_array ( List filterlist)
static

Definition at line 450 of file event_trigger.c.

References construct_array(), cstring_to_text(), i, lfirst, list_length(), palloc(), pfree(), pg_ascii_toupper(), PointerGetDatum, pstrdup(), strVal, and value.

Referenced by insert_event_trigger_tuple().

451 {
452  ListCell *lc;
453  Datum *data;
454  int i = 0,
455  l = list_length(filterlist);
456 
457  data = (Datum *) palloc(l * sizeof(Datum));
458 
459  foreach(lc, filterlist)
460  {
461  const char *value = strVal(lfirst(lc));
462  char *result,
463  *p;
464 
465  result = pstrdup(value);
466  for (p = result; *p; p++)
467  *p = pg_ascii_toupper((unsigned char) *p);
468  data[i++] = PointerGetDatum(cstring_to_text(result));
469  pfree(result);
470  }
471 
472  return PointerGetDatum(construct_array(data, l, TEXTOID, -1, false, 'i'));
473 }
#define PointerGetDatum(X)
Definition: postgres.h:541
char * pstrdup(const char *in)
Definition: mcxt.c:1161
ArrayType * construct_array(Datum *elems, int nelems, Oid elmtype, int elmlen, bool elmbyval, char elmalign)
Definition: arrayfuncs.c:3279
#define strVal(v)
Definition: value.h:54
unsigned char pg_ascii_toupper(unsigned char ch)
Definition: pgstrcasecmp.c:135
void pfree(void *pointer)
Definition: mcxt.c:1031
uintptr_t Datum
Definition: postgres.h:367
static struct @131 value
text * cstring_to_text(const char *s)
Definition: varlena.c:149
#define lfirst(lc)
Definition: pg_list.h:106
static int list_length(const List *l)
Definition: pg_list.h:89
void * palloc(Size size)
Definition: mcxt.c:924
int i

◆ get_event_trigger_oid()

Oid get_event_trigger_oid ( const char *  trigname,
bool  missing_ok 
)

Definition at line 643 of file event_trigger.c.

References CStringGetDatum, ereport, errcode(), errmsg(), ERROR, EVENTTRIGGERNAME, GetSysCacheOid1, and OidIsValid.

Referenced by get_object_address_unqualified().

644 {
645  Oid oid;
646 
648  if (!OidIsValid(oid) && !missing_ok)
649  ereport(ERROR,
650  (errcode(ERRCODE_UNDEFINED_OBJECT),
651  errmsg("event trigger \"%s\" does not exist", trigname)));
652  return oid;
653 }
int errcode(int sqlerrcode)
Definition: elog.c:575
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:605
#define GetSysCacheOid1(cacheId, key1)
Definition: syscache.h:191
#define ERROR
Definition: elog.h:43
#define CStringGetDatum(X)
Definition: postgres.h:563
#define ereport(elevel, rest)
Definition: elog.h:122
int errmsg(const char *fmt,...)
Definition: elog.c:797

◆ insert_event_trigger_tuple()

static Oid insert_event_trigger_tuple ( const char *  trigname,
const char *  eventname,
Oid  evtOwner,
Oid  funcoid,
List tags 
)
static

Definition at line 377 of file event_trigger.c.

References CatalogTupleInsert(), CharGetDatum, ObjectAddress::classId, DEPENDENCY_NORMAL, filter_list_to_array(), heap_close, heap_form_tuple(), heap_freetuple(), heap_open(), InvokeObjectPostCreateHook, NameGetDatum, namestrcpy(), NIL, ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, RelationData::rd_att, recordDependencyOn(), recordDependencyOnCurrentExtension(), recordDependencyOnOwner(), RowExclusiveLock, TRIGGER_FIRES_ON_ORIGIN, and values.

Referenced by CreateEventTrigger().

379 {
380  Relation tgrel;
381  Oid trigoid;
382  HeapTuple tuple;
383  Datum values[Natts_pg_trigger];
384  bool nulls[Natts_pg_trigger];
385  NameData evtnamedata,
386  evteventdata;
387  ObjectAddress myself,
388  referenced;
389 
390  /* Open pg_event_trigger. */
391  tgrel = heap_open(EventTriggerRelationId, RowExclusiveLock);
392 
393  /* Build the new pg_trigger tuple. */
394  memset(nulls, false, sizeof(nulls));
395  namestrcpy(&evtnamedata, trigname);
396  values[Anum_pg_event_trigger_evtname - 1] = NameGetDatum(&evtnamedata);
397  namestrcpy(&evteventdata, eventname);
398  values[Anum_pg_event_trigger_evtevent - 1] = NameGetDatum(&evteventdata);
399  values[Anum_pg_event_trigger_evtowner - 1] = ObjectIdGetDatum(evtOwner);
400  values[Anum_pg_event_trigger_evtfoid - 1] = ObjectIdGetDatum(funcoid);
401  values[Anum_pg_event_trigger_evtenabled - 1] =
403  if (taglist == NIL)
404  nulls[Anum_pg_event_trigger_evttags - 1] = true;
405  else
406  values[Anum_pg_event_trigger_evttags - 1] =
407  filter_list_to_array(taglist);
408 
409  /* Insert heap tuple. */
410  tuple = heap_form_tuple(tgrel->rd_att, values, nulls);
411  trigoid = CatalogTupleInsert(tgrel, tuple);
412  heap_freetuple(tuple);
413 
414  /* Depend on owner. */
415  recordDependencyOnOwner(EventTriggerRelationId, trigoid, evtOwner);
416 
417  /* Depend on event trigger function. */
418  myself.classId = EventTriggerRelationId;
419  myself.objectId = trigoid;
420  myself.objectSubId = 0;
421  referenced.classId = ProcedureRelationId;
422  referenced.objectId = funcoid;
423  referenced.objectSubId = 0;
424  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
425 
426  /* Depend on extension, if any. */
427  recordDependencyOnCurrentExtension(&myself, false);
428 
429  /* Post creation hook for new event trigger */
430  InvokeObjectPostCreateHook(EventTriggerRelationId, trigoid, 0);
431 
432  /* Close pg_event_trigger. */
434 
435  return trigoid;
436 }
#define NIL
Definition: pg_list.h:69
#define NameGetDatum(X)
Definition: postgres.h:580
#define InvokeObjectPostCreateHook(classId, objectId, subId)
Definition: objectaccess.h:145
void recordDependencyOn(const ObjectAddress *depender, const ObjectAddress *referenced, DependencyType behavior)
Definition: pg_depend.c:44
HeapTuple heap_form_tuple(TupleDesc tupleDescriptor, Datum *values, bool *isnull)
Definition: heaptuple.c:1074
#define heap_close(r, l)
Definition: heapam.h:97
void recordDependencyOnOwner(Oid classId, Oid objectId, Oid owner)
Definition: pg_shdepend.c:159
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1773
unsigned int Oid
Definition: postgres_ext.h:31
int namestrcpy(Name name, const char *str)
Definition: name.c:216
#define TRIGGER_FIRES_ON_ORIGIN
Definition: trigger.h:155
#define ObjectIdGetDatum(X)
Definition: postgres.h:492
Oid CatalogTupleInsert(Relation heapRel, HeapTuple tup)
Definition: indexing.c:163
static Datum filter_list_to_array(List *filterlist)
Definition: c.h:570
#define RowExclusiveLock
Definition: lockdefs.h:38
uintptr_t Datum
Definition: postgres.h:367
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1294
TupleDesc rd_att
Definition: rel.h:85
void recordDependencyOnCurrentExtension(const ObjectAddress *object, bool isReplace)
Definition: pg_depend.c:139
#define CharGetDatum(X)
Definition: postgres.h:401
static Datum values[MAXATTR]
Definition: bootstrap.c:164

◆ pg_event_trigger_ddl_commands()

Datum pg_event_trigger_ddl_commands ( PG_FUNCTION_ARGS  )

Definition at line 1993 of file event_trigger.c.

References AccessShareLock, ReturnSetInfo::allowedModes, CollectedCommand::alterTable, CollectedCommand::atscfg, BoolGetDatum, ObjectAddress::classId, EventTriggerQueryState::commandList, CreateCommandTag(), CollectedCommand::createopc, CStringGetTextDatum, CollectedCommand::d, CollectedCommand::defprivs, ReturnSetInfo::econtext, ExprContext::ecxt_per_query_memory, elog, ereport, errcode(), errmsg(), ERROR, get_call_result_type(), get_catalog_object_by_oid(), get_namespace_name(), get_object_attnum_namespace(), getObjectIdentity(), getObjectTypeDescription(), CollectedCommand::grant, heap_close, heap_getattr, heap_open(), HeapTupleIsValid, i, CollectedCommand::in_extension, Int32GetDatum, InvalidAttrNumber, is_objectclass_supported(), IsA, isAnyTempNamespace(), lfirst, MemoryContextSwitchTo(), MemSet, ObjectAddressSet, ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, OidIsValid, CollectedCommand::opfam, CollectedCommand::parsetree, PG_RETURN_VOID, PointerGetDatum, pstrdup(), RelationGetDescr, ReturnSetInfo::returnMode, SCT_AlterDefaultPrivileges, SCT_AlterOpFamily, SCT_AlterTable, SCT_AlterTSConfig, SCT_CreateOpClass, SCT_Grant, SCT_Simple, ReturnSetInfo::setDesc, ReturnSetInfo::setResult, SFRM_Materialize, CollectedCommand::simple, stringify_adefprivs_objtype(), stringify_grant_objtype(), tuplestore_begin_heap(), tuplestore_donestoring, tuplestore_putvalues(), CollectedCommand::type, generate_unaccent_rules::type, TYPEFUNC_COMPOSITE, values, and work_mem.

1994 {
1995  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
1996  TupleDesc tupdesc;
1997  Tuplestorestate *tupstore;
1998  MemoryContext per_query_ctx;
1999  MemoryContext oldcontext;
2000  ListCell *lc;
2001 
2002  /*
2003  * Protect this function from being called out of context
2004  */
2006  ereport(ERROR,
2007  (errcode(ERRCODE_E_R_I_E_EVENT_TRIGGER_PROTOCOL_VIOLATED),
2008  errmsg("%s can only be called in an event trigger function",
2009  "pg_event_trigger_ddl_commands()")));
2010 
2011  /* check to see if caller supports us returning a tuplestore */
2012  if (rsinfo == NULL || !IsA(rsinfo, ReturnSetInfo))
2013  ereport(ERROR,
2014  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
2015  errmsg("set-valued function called in context that cannot accept a set")));
2016  if (!(rsinfo->allowedModes & SFRM_Materialize))
2017  ereport(ERROR,
2018  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
2019  errmsg("materialize mode required, but it is not allowed in this context")));
2020 
2021  /* Build a tuple descriptor for our result type */
2022  if (get_call_result_type(fcinfo, NULL, &tupdesc) != TYPEFUNC_COMPOSITE)
2023  elog(ERROR, "return type must be a row type");
2024 
2025  /* Build tuplestore to hold the result rows */
2026  per_query_ctx = rsinfo->econtext->ecxt_per_query_memory;
2027  oldcontext = MemoryContextSwitchTo(per_query_ctx);
2028 
2029  tupstore = tuplestore_begin_heap(true, false, work_mem);
2030  rsinfo->returnMode = SFRM_Materialize;
2031  rsinfo->setResult = tupstore;
2032  rsinfo->setDesc = tupdesc;
2033 
2034  MemoryContextSwitchTo(oldcontext);
2035 
2037  {
2038  CollectedCommand *cmd = lfirst(lc);
2039  Datum values[9];
2040  bool nulls[9];
2041  ObjectAddress addr;
2042  int i = 0;
2043 
2044  /*
2045  * For IF NOT EXISTS commands that attempt to create an existing
2046  * object, the returned OID is Invalid. Don't return anything.
2047  *
2048  * One might think that a viable alternative would be to look up the
2049  * Oid of the existing object and run the deparse with that. But
2050  * since the parse tree might be different from the one that created
2051  * the object in the first place, we might not end up in a consistent
2052  * state anyway.
2053  */
2054  if (cmd->type == SCT_Simple &&
2055  !OidIsValid(cmd->d.simple.address.objectId))
2056  continue;
2057 
2058  MemSet(nulls, 0, sizeof(nulls));
2059 
2060  switch (cmd->type)
2061  {
2062  case SCT_Simple:
2063  case SCT_AlterTable:
2064  case SCT_AlterOpFamily:
2065  case SCT_CreateOpClass:
2066  case SCT_AlterTSConfig:
2067  {
2068  char *identity;
2069  char *type;
2070  char *schema = NULL;
2071 
2072  if (cmd->type == SCT_Simple)
2073  addr = cmd->d.simple.address;
2074  else if (cmd->type == SCT_AlterTable)
2075  ObjectAddressSet(addr,
2076  cmd->d.alterTable.classId,
2077  cmd->d.alterTable.objectId);
2078  else if (cmd->type == SCT_AlterOpFamily)
2079  addr = cmd->d.opfam.address;
2080  else if (cmd->type == SCT_CreateOpClass)
2081  addr = cmd->d.createopc.address;
2082  else if (cmd->type == SCT_AlterTSConfig)
2083  addr = cmd->d.atscfg.address;
2084 
2085  type = getObjectTypeDescription(&addr);
2086  identity = getObjectIdentity(&addr);
2087 
2088  /*
2089  * Obtain schema name, if any ("pg_temp" if a temp
2090  * object). If the object class is not in the supported
2091  * list here, we assume it's a schema-less object type,
2092  * and thus "schema" remains set to NULL.
2093  */
2095  {
2096  AttrNumber nspAttnum;
2097 
2098  nspAttnum = get_object_attnum_namespace(addr.classId);
2099  if (nspAttnum != InvalidAttrNumber)
2100  {
2101  Relation catalog;
2102  HeapTuple objtup;
2103  Oid schema_oid;
2104  bool isnull;
2105 
2106  catalog = heap_open(addr.classId, AccessShareLock);
2107  objtup = get_catalog_object_by_oid(catalog,
2108  addr.objectId);
2109  if (!HeapTupleIsValid(objtup))
2110  elog(ERROR, "cache lookup failed for object %u/%u",
2111  addr.classId, addr.objectId);
2112  schema_oid =
2113  heap_getattr(objtup, nspAttnum,
2114  RelationGetDescr(catalog), &isnull);
2115  if (isnull)
2116  elog(ERROR,
2117  "invalid null namespace in object %u/%u/%d",
2118  addr.classId, addr.objectId, addr.objectSubId);
2119  /* XXX not quite get_namespace_name_or_temp */
2120  if (isAnyTempNamespace(schema_oid))
2121  schema = pstrdup("pg_temp");
2122  else
2123  schema = get_namespace_name(schema_oid);
2124 
2125  heap_close(catalog, AccessShareLock);
2126  }
2127  }
2128 
2129  /* classid */
2130  values[i++] = ObjectIdGetDatum(addr.classId);
2131  /* objid */
2132  values[i++] = ObjectIdGetDatum(addr.objectId);
2133  /* objsubid */
2134  values[i++] = Int32GetDatum(addr.objectSubId);
2135  /* command tag */
2136  values[i++] = CStringGetTextDatum(CreateCommandTag(cmd->parsetree));
2137  /* object_type */
2138  values[i++] = CStringGetTextDatum(type);
2139  /* schema */
2140  if (schema == NULL)
2141  nulls[i++] = true;
2142  else
2143  values[i++] = CStringGetTextDatum(schema);
2144  /* identity */
2145  values[i++] = CStringGetTextDatum(identity);
2146  /* in_extension */
2147  values[i++] = BoolGetDatum(cmd->in_extension);
2148  /* command */
2149  values[i++] = PointerGetDatum(cmd);
2150  }
2151  break;
2152 
2154  /* classid */
2155  nulls[i++] = true;
2156  /* objid */
2157  nulls[i++] = true;
2158  /* objsubid */
2159  nulls[i++] = true;
2160  /* command tag */
2161  values[i++] = CStringGetTextDatum(CreateCommandTag(cmd->parsetree));
2162  /* object_type */
2164  cmd->d.defprivs.objtype));
2165  /* schema */
2166  nulls[i++] = true;
2167  /* identity */
2168  nulls[i++] = true;
2169  /* in_extension */
2170  values[i++] = BoolGetDatum(cmd->in_extension);
2171  /* command */
2172  values[i++] = PointerGetDatum(cmd);
2173  break;
2174 
2175  case SCT_Grant:
2176  /* classid */
2177  nulls[i++] = true;
2178  /* objid */
2179  nulls[i++] = true;
2180  /* objsubid */
2181  nulls[i++] = true;
2182  /* command tag */
2183  values[i++] = CStringGetTextDatum(cmd->d.grant.istmt->is_grant ?
2184  "GRANT" : "REVOKE");
2185  /* object_type */
2187  cmd->d.grant.istmt->objtype));
2188  /* schema */
2189  nulls[i++] = true;
2190  /* identity */
2191  nulls[i++] = true;
2192  /* in_extension */
2193  values[i++] = BoolGetDatum(cmd->in_extension);
2194  /* command */
2195  values[i++] = PointerGetDatum(cmd);
2196  break;
2197  }
2198 
2199  tuplestore_putvalues(tupstore, tupdesc, values, nulls);
2200  }
2201 
2202  /* clean up and return the tuplestore */
2203  tuplestore_donestoring(tupstore);
2204 
2205  PG_RETURN_VOID();
2206 }
void tuplestore_putvalues(Tuplestorestate *state, TupleDesc tdesc, Datum *values, bool *isnull)
Definition: tuplestore.c:750
struct CollectedCommand::@112::@115 grant
#define IsA(nodeptr, _type_)
Definition: nodes.h:568
TypeFuncClass get_call_result_type(FunctionCallInfo fcinfo, Oid *resultTypeId, TupleDesc *resultTupleDesc)
Definition: funcapi.c:211
struct CollectedCommand::@112::@118 atscfg
char * getObjectTypeDescription(const ObjectAddress *object)
#define RelationGetDescr(relation)
Definition: rel.h:433
#define PointerGetDatum(X)
Definition: postgres.h:541
char * pstrdup(const char *in)
Definition: mcxt.c:1161
struct CollectedCommand::@112::@119 defprivs
#define tuplestore_donestoring(state)
Definition: tuplestore.h:60
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
struct CollectedCommand::@112::@114 alterTable
#define AccessShareLock
Definition: lockdefs.h:36
struct CollectedCommand::@112::@116 opfam
int errcode(int sqlerrcode)
Definition: elog.c:575
union CollectedCommand::@112 d
#define MemSet(start, val, len)
Definition: c.h:908
AttrNumber get_object_attnum_namespace(Oid class_id)
#define heap_close(r, l)
Definition: heapam.h:97
CollectedCommandType type
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:605
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
#define ObjectIdGetDatum(X)
Definition: postgres.h:492
#define ERROR
Definition: elog.h:43
char * getObjectIdentity(const ObjectAddress *object)
struct CollectedCommand::@112::@117 createopc
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3051
#define ereport(elevel, rest)
Definition: elog.h:122
const char * CreateCommandTag(Node *parsetree)
Definition: utility.c:2070
#define heap_getattr(tup, attnum, tupleDesc, isnull)
Definition: htup_details.h:781
Tuplestorestate * tuplestore_begin_heap(bool randomAccess, bool interXact, int maxKBytes)
Definition: tuplestore.c:318
uintptr_t Datum
Definition: postgres.h:367
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1294
int work_mem
Definition: globals.c:122
static const char * stringify_adefprivs_objtype(ObjectType objtype)
#define BoolGetDatum(X)
Definition: postgres.h:387
int allowedModes
Definition: execnodes.h:297
#define PG_RETURN_VOID()
Definition: fmgr.h:314
SetFunctionReturnMode returnMode
Definition: execnodes.h:299
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define lfirst(lc)
Definition: pg_list.h:106
MemoryContext ecxt_per_query_memory
Definition: execnodes.h:225
HeapTuple get_catalog_object_by_oid(Relation catalog, Oid objectId)
#define InvalidAttrNumber
Definition: attnum.h:23
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
Tuplestorestate * setResult
Definition: execnodes.h:302
static Datum values[MAXATTR]
Definition: bootstrap.c:164
struct CollectedCommand::@112::@113 simple
ExprContext * econtext
Definition: execnodes.h:295
#define Int32GetDatum(X)
Definition: postgres.h:464
TupleDesc setDesc
Definition: execnodes.h:303
int errmsg(const char *fmt,...)
Definition: elog.c:797
int i
#define CStringGetTextDatum(s)
Definition: builtins.h:95
bool isAnyTempNamespace(Oid namespaceId)
Definition: namespace.c:3175
#define elog
Definition: elog.h:219
bool is_objectclass_supported(Oid class_id)
static const char * stringify_grant_objtype(ObjectType objtype)
int16 AttrNumber
Definition: attnum.h:21

◆ pg_event_trigger_dropped_objects()

Datum pg_event_trigger_dropped_objects ( PG_FUNCTION_ARGS  )

Definition at line 1441 of file event_trigger.c.

References SQLDropObject::addrargs, SQLDropObject::address, SQLDropObject::addrnames, ReturnSetInfo::allowedModes, BoolGetDatum, ObjectAddress::classId, construct_empty_array(), CStringGetTextDatum, ReturnSetInfo::econtext, ExprContext::ecxt_per_query_memory, elog, ereport, errcode(), errmsg(), ERROR, get_call_result_type(), i, EventTriggerQueryState::in_sql_drop, Int32GetDatum, IsA, SQLDropObject::istemp, MemoryContextSwitchTo(), MemSet, next, SQLDropObject::normal, ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, SQLDropObject::objecttype, SQLDropObject::objidentity, SQLDropObject::objname, SQLDropObject::original, PointerGetDatum, ReturnSetInfo::returnMode, SQLDropObject::schemaname, ReturnSetInfo::setDesc, ReturnSetInfo::setResult, SFRM_Materialize, slist_container, slist_foreach, EventTriggerQueryState::SQLDropList, strlist_to_textarray(), tuplestore_begin_heap(), tuplestore_donestoring, tuplestore_putvalues(), TYPEFUNC_COMPOSITE, values, and work_mem.

1442 {
1443  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
1444  TupleDesc tupdesc;
1445  Tuplestorestate *tupstore;
1446  MemoryContext per_query_ctx;
1447  MemoryContext oldcontext;
1448  slist_iter iter;
1449 
1450  /*
1451  * Protect this function from being called out of context
1452  */
1453  if (!currentEventTriggerState ||
1455  ereport(ERROR,
1456  (errcode(ERRCODE_E_R_I_E_EVENT_TRIGGER_PROTOCOL_VIOLATED),
1457  errmsg("%s can only be called in a sql_drop event trigger function",
1458  "pg_event_trigger_dropped_objects()")));
1459 
1460  /* check to see if caller supports us returning a tuplestore */
1461  if (rsinfo == NULL || !IsA(rsinfo, ReturnSetInfo))
1462  ereport(ERROR,
1463  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1464  errmsg("set-valued function called in context that cannot accept a set")));
1465  if (!(rsinfo->allowedModes & SFRM_Materialize))
1466  ereport(ERROR,
1467  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1468  errmsg("materialize mode required, but it is not allowed in this context")));
1469 
1470  /* Build a tuple descriptor for our result type */
1471  if (get_call_result_type(fcinfo, NULL, &tupdesc) != TYPEFUNC_COMPOSITE)
1472  elog(ERROR, "return type must be a row type");
1473 
1474  /* Build tuplestore to hold the result rows */
1475  per_query_ctx = rsinfo->econtext->ecxt_per_query_memory;
1476  oldcontext = MemoryContextSwitchTo(per_query_ctx);
1477 
1478  tupstore = tuplestore_begin_heap(true, false, work_mem);
1479  rsinfo->returnMode = SFRM_Materialize;
1480  rsinfo->setResult = tupstore;
1481  rsinfo->setDesc = tupdesc;
1482 
1483  MemoryContextSwitchTo(oldcontext);
1484 
1486  {
1487  SQLDropObject *obj;
1488  int i = 0;
1489  Datum values[12];
1490  bool nulls[12];
1491 
1492  obj = slist_container(SQLDropObject, next, iter.cur);
1493 
1494  MemSet(values, 0, sizeof(values));
1495  MemSet(nulls, 0, sizeof(nulls));
1496 
1497  /* classid */
1498  values[i++] = ObjectIdGetDatum(obj->address.classId);
1499 
1500  /* objid */
1501  values[i++] = ObjectIdGetDatum(obj->address.objectId);
1502 
1503  /* objsubid */
1504  values[i++] = Int32GetDatum(obj->address.objectSubId);
1505 
1506  /* original */
1507  values[i++] = BoolGetDatum(obj->original);
1508 
1509  /* normal */
1510  values[i++] = BoolGetDatum(obj->normal);
1511 
1512  /* is_temporary */
1513  values[i++] = BoolGetDatum(obj->istemp);
1514 
1515  /* object_type */
1516  values[i++] = CStringGetTextDatum(obj->objecttype);
1517 
1518  /* schema_name */
1519  if (obj->schemaname)
1520  values[i++] = CStringGetTextDatum(obj->schemaname);
1521  else
1522  nulls[i++] = true;
1523 
1524  /* object_name */
1525  if (obj->objname)
1526  values[i++] = CStringGetTextDatum(obj->objname);
1527  else
1528  nulls[i++] = true;
1529 
1530  /* object_identity */
1531  if (obj->objidentity)
1532  values[i++] = CStringGetTextDatum(obj->objidentity);
1533  else
1534  nulls[i++] = true;
1535 
1536  /* address_names and address_args */
1537  if (obj->addrnames)
1538  {
1539  values[i++] = PointerGetDatum(strlist_to_textarray(obj->addrnames));
1540 
1541  if (obj->addrargs)
1542  values[i++] = PointerGetDatum(strlist_to_textarray(obj->addrargs));
1543  else
1544  values[i++] = PointerGetDatum(construct_empty_array(TEXTOID));
1545  }
1546  else
1547  {
1548  nulls[i++] = true;
1549  nulls[i++] = true;
1550  }
1551 
1552  tuplestore_putvalues(tupstore, tupdesc, values, nulls);
1553  }
1554 
1555  /* clean up and return the tuplestore */
1556  tuplestore_donestoring(tupstore);
1557 
1558  return (Datum) 0;
1559 }
void tuplestore_putvalues(Tuplestorestate *state, TupleDesc tdesc, Datum *values, bool *isnull)
Definition: tuplestore.c:750
#define IsA(nodeptr, _type_)
Definition: nodes.h:568
TypeFuncClass get_call_result_type(FunctionCallInfo fcinfo, Oid *resultTypeId, TupleDesc *resultTupleDesc)
Definition: funcapi.c:211
static int32 next
Definition: blutils.c:211
ObjectAddress address
#define PointerGetDatum(X)
Definition: postgres.h:541
const char * objname
#define tuplestore_donestoring(state)
Definition: tuplestore.h:60
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
int errcode(int sqlerrcode)
Definition: elog.c:575
#define MemSet(start, val, len)
Definition: c.h:908
const char * objidentity
ArrayType * construct_empty_array(Oid elmtype)
Definition: arrayfuncs.c:3398
const char * objecttype
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
#define ObjectIdGetDatum(X)
Definition: postgres.h:492
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
const char * schemaname
Tuplestorestate * tuplestore_begin_heap(bool randomAccess, bool interXact, int maxKBytes)
Definition: tuplestore.c:318
#define slist_container(type, membername, ptr)
Definition: ilist.h:674
uintptr_t Datum
Definition: postgres.h:367
int work_mem
Definition: globals.c:122
#define BoolGetDatum(X)
Definition: postgres.h:387
int allowedModes
Definition: execnodes.h:297
SetFunctionReturnMode returnMode
Definition: execnodes.h:299
MemoryContext ecxt_per_query_memory
Definition: execnodes.h:225
Tuplestorestate * setResult
Definition: execnodes.h:302
static Datum values[MAXATTR]
Definition: bootstrap.c:164
ExprContext * econtext
Definition: execnodes.h:295
#define slist_foreach(iter, lhead)
Definition: ilist.h:700
#define Int32GetDatum(X)
Definition: postgres.h:464
TupleDesc setDesc
Definition: execnodes.h:303
int errmsg(const char *fmt,...)
Definition: elog.c:797
int i
#define CStringGetTextDatum(s)
Definition: builtins.h:95
ArrayType * strlist_to_textarray(List *list)
#define elog
Definition: elog.h:219

◆ pg_event_trigger_table_rewrite_oid()

Datum pg_event_trigger_table_rewrite_oid ( PG_FUNCTION_ARGS  )

Definition at line 1568 of file event_trigger.c.

References ereport, errcode(), errmsg(), ERROR, InvalidOid, PG_RETURN_OID, and EventTriggerQueryState::table_rewrite_oid.

1569 {
1570  /*
1571  * Protect this function from being called out of context
1572  */
1573  if (!currentEventTriggerState ||
1575  ereport(ERROR,
1576  (errcode(ERRCODE_E_R_I_E_EVENT_TRIGGER_PROTOCOL_VIOLATED),
1577  errmsg("%s can only be called in a table_rewrite event trigger function",
1578  "pg_event_trigger_table_rewrite_oid()")));
1579 
1581 }
int errcode(int sqlerrcode)
Definition: elog.c:575
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
#define InvalidOid
Definition: postgres_ext.h:36
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define PG_RETURN_OID(x)
Definition: fmgr.h:325

◆ pg_event_trigger_table_rewrite_reason()

Datum pg_event_trigger_table_rewrite_reason ( PG_FUNCTION_ARGS  )

Definition at line 1589 of file event_trigger.c.

References ereport, errcode(), errmsg(), ERROR, PG_RETURN_INT32, and EventTriggerQueryState::table_rewrite_reason.

1590 {
1591  /*
1592  * Protect this function from being called out of context
1593  */
1594  if (!currentEventTriggerState ||
1596  ereport(ERROR,
1597  (errcode(ERRCODE_E_R_I_E_EVENT_TRIGGER_PROTOCOL_VIOLATED),
1598  errmsg("%s can only be called in a table_rewrite event trigger function",
1599  "pg_event_trigger_table_rewrite_reason()")));
1600 
1602 }
#define PG_RETURN_INT32(x)
Definition: fmgr.h:319
int errcode(int sqlerrcode)
Definition: elog.c:575
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
int errmsg(const char *fmt,...)
Definition: elog.c:797

◆ RemoveEventTriggerById()

void RemoveEventTriggerById ( Oid  trigOid)

Definition at line 479 of file event_trigger.c.

References CatalogTupleDelete(), elog, ERROR, EVENTTRIGGEROID, heap_close, heap_open(), HeapTupleIsValid, ObjectIdGetDatum, ReleaseSysCache(), RowExclusiveLock, SearchSysCache1(), and HeapTupleData::t_self.

Referenced by doDeletion().

480 {
481  Relation tgrel;
482  HeapTuple tup;
483 
484  tgrel = heap_open(EventTriggerRelationId, RowExclusiveLock);
485 
487  if (!HeapTupleIsValid(tup))
488  elog(ERROR, "cache lookup failed for event trigger %u", trigOid);
489 
490  CatalogTupleDelete(tgrel, &tup->t_self);
491 
492  ReleaseSysCache(tup);
493 
495 }
void CatalogTupleDelete(Relation heapRel, ItemPointer tid)
Definition: indexing.c:256
#define heap_close(r, l)
Definition: heapam.h:97
#define ObjectIdGetDatum(X)
Definition: postgres.h:492
#define ERROR
Definition: elog.h:43
ItemPointerData t_self
Definition: htup.h:65
#define RowExclusiveLock
Definition: lockdefs.h:38
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1112
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1160
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1294
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define elog
Definition: elog.h:219

◆ stringify_adefprivs_objtype()

static const char * stringify_adefprivs_objtype ( ObjectType  objtype)
static

Definition at line 2295 of file event_trigger.c.

References elog, ERROR, OBJECT_ACCESS_METHOD, OBJECT_AGGREGATE, OBJECT_AMOP, OBJECT_AMPROC, OBJECT_ATTRIBUTE, OBJECT_CAST, OBJECT_COLLATION, OBJECT_COLUMN, OBJECT_CONVERSION, OBJECT_DATABASE, OBJECT_DEFACL, OBJECT_DEFAULT, OBJECT_DOMAIN, OBJECT_DOMCONSTRAINT, OBJECT_EVENT_TRIGGER, OBJECT_EXTENSION, OBJECT_FDW, OBJECT_FOREIGN_SERVER, OBJECT_FOREIGN_TABLE, OBJECT_FUNCTION, OBJECT_INDEX, OBJECT_LANGUAGE, OBJECT_LARGEOBJECT, OBJECT_MATVIEW, OBJECT_OPCLASS, OBJECT_OPERATOR, OBJECT_OPFAMILY, OBJECT_POLICY, OBJECT_PROCEDURE, OBJECT_PUBLICATION, OBJECT_PUBLICATION_REL, OBJECT_ROLE, OBJECT_ROUTINE, OBJECT_RULE, OBJECT_SCHEMA, OBJECT_SEQUENCE, OBJECT_STATISTIC_EXT, OBJECT_SUBSCRIPTION, OBJECT_TABCONSTRAINT, OBJECT_TABLE, OBJECT_TABLESPACE, OBJECT_TRANSFORM, OBJECT_TRIGGER, OBJECT_TSCONFIGURATION, OBJECT_TSDICTIONARY, OBJECT_TSPARSER, OBJECT_TSTEMPLATE, OBJECT_TYPE, OBJECT_USER_MAPPING, and OBJECT_VIEW.

Referenced by pg_event_trigger_ddl_commands().

2296 {
2297  switch (objtype)
2298  {
2299  case OBJECT_COLUMN:
2300  return "COLUMNS";
2301  case OBJECT_TABLE:
2302  return "TABLES";
2303  case OBJECT_SEQUENCE:
2304  return "SEQUENCES";
2305  case OBJECT_DATABASE:
2306  return "DATABASES";
2307  case OBJECT_DOMAIN:
2308  return "DOMAINS";
2309  case OBJECT_FDW:
2310  return "FOREIGN DATA WRAPPERS";
2311  case OBJECT_FOREIGN_SERVER:
2312  return "FOREIGN SERVERS";
2313  case OBJECT_FUNCTION:
2314  return "FUNCTIONS";
2315  case OBJECT_LANGUAGE:
2316  return "LANGUAGES";
2317  case OBJECT_LARGEOBJECT:
2318  return "LARGE OBJECTS";
2319  case OBJECT_SCHEMA:
2320  return "SCHEMAS";
2321  case OBJECT_PROCEDURE:
2322  return "PROCEDURES";
2323  case OBJECT_ROUTINE:
2324  return "ROUTINES";
2325  case OBJECT_TABLESPACE:
2326  return "TABLESPACES";
2327  case OBJECT_TYPE:
2328  return "TYPES";
2329  /* these currently aren't used */
2330  case OBJECT_ACCESS_METHOD:
2331  case OBJECT_AGGREGATE:
2332  case OBJECT_AMOP:
2333  case OBJECT_AMPROC:
2334  case OBJECT_ATTRIBUTE:
2335  case OBJECT_CAST:
2336  case OBJECT_COLLATION:
2337  case OBJECT_CONVERSION:
2338  case OBJECT_DEFAULT:
2339  case OBJECT_DEFACL:
2340  case OBJECT_DOMCONSTRAINT:
2341  case OBJECT_EVENT_TRIGGER:
2342  case OBJECT_EXTENSION:
2343  case OBJECT_FOREIGN_TABLE:
2344  case OBJECT_INDEX:
2345  case OBJECT_MATVIEW:
2346  case OBJECT_OPCLASS:
2347  case OBJECT_OPERATOR:
2348  case OBJECT_OPFAMILY:
2349  case OBJECT_POLICY:
2350  case OBJECT_PUBLICATION:
2352  case OBJECT_ROLE:
2353  case OBJECT_RULE:
2354  case OBJECT_STATISTIC_EXT:
2355  case OBJECT_SUBSCRIPTION:
2356  case OBJECT_TABCONSTRAINT:
2357  case OBJECT_TRANSFORM:
2358  case OBJECT_TRIGGER:
2360  case OBJECT_TSDICTIONARY:
2361  case OBJECT_TSPARSER:
2362  case OBJECT_TSTEMPLATE:
2363  case OBJECT_USER_MAPPING:
2364  case OBJECT_VIEW:
2365  elog(ERROR, "unsupported object type: %d", (int) objtype);
2366  }
2367 
2368  return "???"; /* keep compiler quiet */
2369 }
#define ERROR
Definition: elog.h:43
#define elog
Definition: elog.h:219

◆ stringify_grant_objtype()

static const char * stringify_grant_objtype ( ObjectType  objtype)
static

Definition at line 2213 of file event_trigger.c.

References elog, ERROR, OBJECT_ACCESS_METHOD, OBJECT_AGGREGATE, OBJECT_AMOP, OBJECT_AMPROC, OBJECT_ATTRIBUTE, OBJECT_CAST, OBJECT_COLLATION, OBJECT_COLUMN, OBJECT_CONVERSION, OBJECT_DATABASE, OBJECT_DEFACL, OBJECT_DEFAULT, OBJECT_DOMAIN, OBJECT_DOMCONSTRAINT, OBJECT_EVENT_TRIGGER, OBJECT_EXTENSION, OBJECT_FDW, OBJECT_FOREIGN_SERVER, OBJECT_FOREIGN_TABLE, OBJECT_FUNCTION, OBJECT_INDEX, OBJECT_LANGUAGE, OBJECT_LARGEOBJECT, OBJECT_MATVIEW, OBJECT_OPCLASS, OBJECT_OPERATOR, OBJECT_OPFAMILY, OBJECT_POLICY, OBJECT_PROCEDURE, OBJECT_PUBLICATION, OBJECT_PUBLICATION_REL, OBJECT_ROLE, OBJECT_ROUTINE, OBJECT_RULE, OBJECT_SCHEMA, OBJECT_SEQUENCE, OBJECT_STATISTIC_EXT, OBJECT_SUBSCRIPTION, OBJECT_TABCONSTRAINT, OBJECT_TABLE, OBJECT_TABLESPACE, OBJECT_TRANSFORM, OBJECT_TRIGGER, OBJECT_TSCONFIGURATION, OBJECT_TSDICTIONARY, OBJECT_TSPARSER, OBJECT_TSTEMPLATE, OBJECT_TYPE, OBJECT_USER_MAPPING, and OBJECT_VIEW.

Referenced by pg_event_trigger_ddl_commands().

2214 {
2215  switch (objtype)
2216  {
2217  case OBJECT_COLUMN:
2218  return "COLUMN";
2219  case OBJECT_TABLE:
2220  return "TABLE";
2221  case OBJECT_SEQUENCE:
2222  return "SEQUENCE";
2223  case OBJECT_DATABASE:
2224  return "DATABASE";
2225  case OBJECT_DOMAIN:
2226  return "DOMAIN";
2227  case OBJECT_FDW:
2228  return "FOREIGN DATA WRAPPER";
2229  case OBJECT_FOREIGN_SERVER:
2230  return "FOREIGN SERVER";
2231  case OBJECT_FUNCTION:
2232  return "FUNCTION";
2233  case OBJECT_LANGUAGE:
2234  return "LANGUAGE";
2235  case OBJECT_LARGEOBJECT:
2236  return "LARGE OBJECT";
2237  case OBJECT_SCHEMA:
2238  return "SCHEMA";
2239  case OBJECT_PROCEDURE:
2240  return "PROCEDURE";
2241  case OBJECT_ROUTINE:
2242  return "ROUTINE";
2243  case OBJECT_TABLESPACE:
2244  return "TABLESPACE";
2245  case OBJECT_TYPE:
2246  return "TYPE";
2247  /* these currently aren't used */
2248  case OBJECT_ACCESS_METHOD:
2249  case OBJECT_AGGREGATE:
2250  case OBJECT_AMOP:
2251  case OBJECT_AMPROC:
2252  case OBJECT_ATTRIBUTE:
2253  case OBJECT_CAST:
2254  case OBJECT_COLLATION:
2255  case OBJECT_CONVERSION:
2256  case OBJECT_DEFAULT:
2257  case OBJECT_DEFACL:
2258  case OBJECT_DOMCONSTRAINT:
2259  case OBJECT_EVENT_TRIGGER:
2260  case OBJECT_EXTENSION:
2261  case OBJECT_FOREIGN_TABLE:
2262  case OBJECT_INDEX:
2263  case OBJECT_MATVIEW:
2264  case OBJECT_OPCLASS:
2265  case OBJECT_OPERATOR:
2266  case OBJECT_OPFAMILY:
2267  case OBJECT_POLICY:
2268  case OBJECT_PUBLICATION:
2270  case OBJECT_ROLE:
2271  case OBJECT_RULE:
2272  case OBJECT_STATISTIC_EXT:
2273  case OBJECT_SUBSCRIPTION:
2274  case OBJECT_TABCONSTRAINT:
2275  case OBJECT_TRANSFORM:
2276  case OBJECT_TRIGGER:
2278  case OBJECT_TSDICTIONARY:
2279  case OBJECT_TSPARSER:
2280  case OBJECT_TSTEMPLATE:
2281  case OBJECT_USER_MAPPING:
2282  case OBJECT_VIEW:
2283  elog(ERROR, "unsupported object type: %d", (int) objtype);
2284  }
2285 
2286  return "???"; /* keep compiler quiet */
2287 }
#define ERROR
Definition: elog.h:43
#define elog
Definition: elog.h:219

◆ trackDroppedObjectsNeeded()

bool trackDroppedObjectsNeeded ( void  )

Definition at line 1293 of file event_trigger.c.

References EventCacheLookup(), EVT_DDLCommandEnd, EVT_SQLDrop, EVT_TableRewrite, and list_length().

Referenced by deleteObjectsInList(), and EventTriggerBeginCompleteQuery().

1294 {
1295  /*
1296  * true if any sql_drop, table_rewrite, ddl_command_end event trigger
1297  * exists
1298  */
1299  return list_length(EventCacheLookup(EVT_SQLDrop)) > 0 ||
1302 }
static int list_length(const List *l)
Definition: pg_list.h:89
List * EventCacheLookup(EventTriggerEvent event)
Definition: evtcache.c:64

◆ validate_ddl_tags()

static void validate_ddl_tags ( const char *  filtervar,
List taglist 
)
static

Definition at line 257 of file event_trigger.c.

References check_ddl_tag(), ereport, errcode(), errmsg(), ERROR, EVENT_TRIGGER_COMMAND_TAG_NOT_RECOGNIZED, EVENT_TRIGGER_COMMAND_TAG_NOT_SUPPORTED, lfirst, and strVal.

Referenced by CreateEventTrigger().

258 {
259  ListCell *lc;
260 
261  foreach(lc, taglist)
262  {
263  const char *tag = strVal(lfirst(lc));
265 
266  result = check_ddl_tag(tag);
268  ereport(ERROR,
269  (errcode(ERRCODE_SYNTAX_ERROR),
270  errmsg("filter value \"%s\" not recognized for filter variable \"%s\"",
271  tag, filtervar)));
273  ereport(ERROR,
274  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
275  /* translator: %s represents an SQL statement name */
276  errmsg("event triggers are not supported for %s",
277  tag)));
278  }
279 }
#define strVal(v)
Definition: value.h:54
int errcode(int sqlerrcode)
Definition: elog.c:575
static event_trigger_command_tag_check_result check_ddl_tag(const char *tag)
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
event_trigger_command_tag_check_result
Definition: event_trigger.c:80
#define lfirst(lc)
Definition: pg_list.h:106
int errmsg(const char *fmt,...)
Definition: elog.c:797

◆ validate_table_rewrite_tags()

static void validate_table_rewrite_tags ( const char *  filtervar,
List taglist 
)
static

Definition at line 332 of file event_trigger.c.

References check_table_rewrite_ddl_tag(), ereport, errcode(), errmsg(), ERROR, EVENT_TRIGGER_COMMAND_TAG_NOT_SUPPORTED, lfirst, and strVal.

Referenced by CreateEventTrigger().

333 {
334  ListCell *lc;
335 
336  foreach(lc, taglist)
337  {
338  const char *tag = strVal(lfirst(lc));
340 
341  result = check_table_rewrite_ddl_tag(tag);
343  ereport(ERROR,
344  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
345  /* translator: %s represents an SQL statement name */
346  errmsg("event triggers are not supported for %s",
347  tag)));
348  }
349 }
#define strVal(v)
Definition: value.h:54
int errcode(int sqlerrcode)
Definition: elog.c:575
#define ERROR
Definition: elog.h:43
static event_trigger_command_tag_check_result check_table_rewrite_ddl_tag(const char *tag)
#define ereport(elevel, rest)
Definition: elog.h:122
event_trigger_command_tag_check_result
Definition: event_trigger.c:80
#define lfirst(lc)
Definition: pg_list.h:106
int errmsg(const char *fmt,...)
Definition: elog.c:797

Variable Documentation

◆ currentEventTriggerState

EventTriggerQueryState* currentEventTriggerState = NULL
static

Definition at line 72 of file event_trigger.c.

Referenced by EventTriggerBeginCompleteQuery().

◆ event_trigger_support

event_trigger_support_data event_trigger_support[]
static

Definition at line 88 of file event_trigger.c.