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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 (char *trigname, 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_grantobjtype (GrantObjectType objtype)
 
static const char * stringify_adefprivs_objtype (GrantObjectType 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 EventTriggerSupportsGrantObjectType (GrantObjectType objtype)
 
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

Enumeration Type Documentation

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

Oid AlterEventTrigger ( AlterEventTrigStmt stmt)

Definition at line 498 of file event_trigger.c.

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

Referenced by standard_ProcessUtility().

499 {
500  Relation tgrel;
501  HeapTuple tup;
502  Oid trigoid;
503  Form_pg_event_trigger evtForm;
504  char tgenabled = stmt->tgenabled;
505 
507 
509  CStringGetDatum(stmt->trigname));
510  if (!HeapTupleIsValid(tup))
511  ereport(ERROR,
512  (errcode(ERRCODE_UNDEFINED_OBJECT),
513  errmsg("event trigger \"%s\" does not exist",
514  stmt->trigname)));
515 
516  trigoid = HeapTupleGetOid(tup);
517 
518  if (!pg_event_trigger_ownercheck(trigoid, GetUserId()))
520  stmt->trigname);
521 
522  /* tuple is a copy, so we can modify it below */
523  evtForm = (Form_pg_event_trigger) GETSTRUCT(tup);
524  evtForm->evtenabled = tgenabled;
525 
526  CatalogTupleUpdate(tgrel, &tup->t_self, tup);
527 
529  trigoid, 0);
530 
531  /* clean up */
532  heap_freetuple(tup);
534 
535  return trigoid;
536 }
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
Oid GetUserId(void)
Definition: miscinit.c:283
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:1374
unsigned int Oid
Definition: postgres_ext.h:31
#define ERROR
Definition: elog.h:43
bool pg_event_trigger_ownercheck(Oid et_oid, Oid roleid)
Definition: aclchk.c:4912
ItemPointerData t_self
Definition: htup.h:65
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3378
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:586
#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:1287
FormData_pg_event_trigger * Form_pg_event_trigger
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define EventTriggerRelationId
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:210
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:158
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:695
ObjectAddress AlterEventTriggerOwner ( const char *  name,
Oid  newOwnerId 
)

Definition at line 542 of file event_trigger.c.

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

Referenced by ExecAlterOwnerStmt().

543 {
544  Oid evtOid;
545  HeapTuple tup;
546  Relation rel;
547  ObjectAddress address;
548 
550 
552 
553  if (!HeapTupleIsValid(tup))
554  ereport(ERROR,
555  (errcode(ERRCODE_UNDEFINED_OBJECT),
556  errmsg("event trigger \"%s\" does not exist", name)));
557 
558  evtOid = HeapTupleGetOid(tup);
559 
560  AlterEventTriggerOwner_internal(rel, tup, newOwnerId);
561 
562  ObjectAddressSet(address, EventTriggerRelationId, evtOid);
563 
564  heap_freetuple(tup);
565 
567 
568  return address;
569 }
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:1374
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:586
#define ereport(elevel, rest)
Definition: elog.h:122
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1287
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define EventTriggerRelationId
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:158
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:695
static void AlterEventTriggerOwner_internal ( Relation  rel,
HeapTuple  tup,
Oid  newOwnerId 
)
static

Definition at line 600 of file event_trigger.c.

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

Referenced by AlterEventTriggerOwner(), and AlterEventTriggerOwner_oid().

601 {
603 
604  form = (Form_pg_event_trigger) GETSTRUCT(tup);
605 
606  if (form->evtowner == newOwnerId)
607  return;
608 
611  NameStr(form->evtname));
612 
613  /* New owner must be a superuser */
614  if (!superuser_arg(newOwnerId))
615  ereport(ERROR,
616  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
617  errmsg("permission denied to change owner of event trigger \"%s\"",
618  NameStr(form->evtname)),
619  errhint("The owner of an event trigger must be a superuser.")));
620 
621  form->evtowner = newOwnerId;
622  CatalogTupleUpdate(rel, &tup->t_self, tup);
623 
624  /* Update owner dependency reference */
626  HeapTupleGetOid(tup),
627  newOwnerId);
628 
630  HeapTupleGetOid(tup), 0);
631 }
int errhint(const char *fmt,...)
Definition: elog.c:987
#define GETSTRUCT(TUP)
Definition: htup_details.h:656
Oid GetUserId(void)
Definition: miscinit.c:283
int errcode(int sqlerrcode)
Definition: elog.c:575
void changeDependencyOnOwner(Oid classId, Oid objectId, Oid newOwnerId)
Definition: pg_shdepend.c:303
#define ERROR
Definition: elog.h:43
bool pg_event_trigger_ownercheck(Oid et_oid, Oid roleid)
Definition: aclchk.c:4912
ItemPointerData t_self
Definition: htup.h:65
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3378
#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
#define EventTriggerRelationId
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:210
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define NameStr(name)
Definition: c.h:494
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:695
void AlterEventTriggerOwner_oid ( Oid  trigOid,
Oid  newOwnerId 
)

Definition at line 575 of file event_trigger.c.

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

Referenced by shdepReassignOwned().

576 {
577  HeapTuple tup;
578  Relation rel;
579 
581 
583 
584  if (!HeapTupleIsValid(tup))
585  ereport(ERROR,
586  (errcode(ERRCODE_UNDEFINED_OBJECT),
587  errmsg("event trigger with OID %u does not exist", trigOid)));
588 
589  AlterEventTriggerOwner_internal(rel, tup, newOwnerId);
590 
591  heap_freetuple(tup);
592 
594 }
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:1374
static void AlterEventTriggerOwner_internal(Relation rel, HeapTuple tup, Oid newOwnerId)
#define ObjectIdGetDatum(X)
Definition: postgres.h:515
#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:1287
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define EventTriggerRelationId
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:158
int errmsg(const char *fmt,...)
Definition: elog.c:797
static event_trigger_command_tag_check_result check_ddl_tag ( const char *  tag)
static

Definition at line 279 of file event_trigger.c.

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

Referenced by EventTriggerCommonSetup(), and validate_ddl_tags().

280 {
281  const char *obtypename;
283 
284  /*
285  * Handle some idiosyncratic special cases.
286  */
287  if (pg_strcasecmp(tag, "CREATE TABLE AS") == 0 ||
288  pg_strcasecmp(tag, "SELECT INTO") == 0 ||
289  pg_strcasecmp(tag, "REFRESH MATERIALIZED VIEW") == 0 ||
290  pg_strcasecmp(tag, "ALTER DEFAULT PRIVILEGES") == 0 ||
291  pg_strcasecmp(tag, "ALTER LARGE OBJECT") == 0 ||
292  pg_strcasecmp(tag, "COMMENT") == 0 ||
293  pg_strcasecmp(tag, "GRANT") == 0 ||
294  pg_strcasecmp(tag, "REVOKE") == 0 ||
295  pg_strcasecmp(tag, "DROP OWNED") == 0 ||
296  pg_strcasecmp(tag, "IMPORT FOREIGN SCHEMA") == 0 ||
297  pg_strcasecmp(tag, "SECURITY LABEL") == 0)
299 
300  /*
301  * Otherwise, command should be CREATE, ALTER, or DROP.
302  */
303  if (pg_strncasecmp(tag, "CREATE ", 7) == 0)
304  obtypename = tag + 7;
305  else if (pg_strncasecmp(tag, "ALTER ", 6) == 0)
306  obtypename = tag + 6;
307  else if (pg_strncasecmp(tag, "DROP ", 5) == 0)
308  obtypename = tag + 5;
309  else
311 
312  /*
313  * ...and the object type should be something recognizable.
314  */
315  for (etsd = event_trigger_support; etsd->obtypename != NULL; etsd++)
316  if (pg_strcasecmp(etsd->obtypename, obtypename) == 0)
317  break;
318  if (etsd->obtypename == NULL)
320  if (!etsd->supported)
323 }
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
#define NULL
Definition: c.h:226
static event_trigger_command_tag_check_result check_table_rewrite_ddl_tag ( const char *  tag)
static

Definition at line 349 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().

350 {
351  if (pg_strcasecmp(tag, "ALTER TABLE") == 0 ||
352  pg_strcasecmp(tag, "ALTER TYPE") == 0)
354 
356 }
int pg_strcasecmp(const char *s1, const char *s2)
Definition: pgstrcasecmp.c:36
Oid CreateEventTrigger ( CreateEventTrigStmt stmt)

Definition at line 166 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, EVTTRIGGEROID, CreateEventTrigStmt::funcname, get_func_rettype(), GetUserId(), HeapTupleIsValid, insert_event_trigger_tuple(), lfirst, LookupFuncName(), NameListToString(), NULL, SearchSysCache1, superuser(), CreateEventTrigStmt::trigname, validate_ddl_tags(), validate_table_rewrite_tags(), and CreateEventTrigStmt::whenclause.

Referenced by standard_ProcessUtility().

167 {
168  HeapTuple tuple;
169  Oid funcoid;
170  Oid funcrettype;
171  Oid fargtypes[1]; /* dummy */
172  Oid evtowner = GetUserId();
173  ListCell *lc;
174  List *tags = NULL;
175 
176  /*
177  * It would be nice to allow database owners or even regular users to do
178  * this, but there are obvious privilege escalation risks which would have
179  * to somehow be plugged first.
180  */
181  if (!superuser())
182  ereport(ERROR,
183  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
184  errmsg("permission denied to create event trigger \"%s\"",
185  stmt->trigname),
186  errhint("Must be superuser to create an event trigger.")));
187 
188  /* Validate event name. */
189  if (strcmp(stmt->eventname, "ddl_command_start") != 0 &&
190  strcmp(stmt->eventname, "ddl_command_end") != 0 &&
191  strcmp(stmt->eventname, "sql_drop") != 0 &&
192  strcmp(stmt->eventname, "table_rewrite") != 0)
193  ereport(ERROR,
194  (errcode(ERRCODE_SYNTAX_ERROR),
195  errmsg("unrecognized event name \"%s\"",
196  stmt->eventname)));
197 
198  /* Validate filter conditions. */
199  foreach(lc, stmt->whenclause)
200  {
201  DefElem *def = (DefElem *) lfirst(lc);
202 
203  if (strcmp(def->defname, "tag") == 0)
204  {
205  if (tags != NULL)
207  tags = (List *) def->arg;
208  }
209  else
210  ereport(ERROR,
211  (errcode(ERRCODE_SYNTAX_ERROR),
212  errmsg("unrecognized filter variable \"%s\"", def->defname)));
213  }
214 
215  /* Validate tag list, if any. */
216  if ((strcmp(stmt->eventname, "ddl_command_start") == 0 ||
217  strcmp(stmt->eventname, "ddl_command_end") == 0 ||
218  strcmp(stmt->eventname, "sql_drop") == 0)
219  && tags != NULL)
220  validate_ddl_tags("tag", tags);
221  else if (strcmp(stmt->eventname, "table_rewrite") == 0
222  && tags != NULL)
223  validate_table_rewrite_tags("tag", tags);
224 
225  /*
226  * Give user a nice error message if an event trigger of the same name
227  * already exists.
228  */
230  if (HeapTupleIsValid(tuple))
231  ereport(ERROR,
233  errmsg("event trigger \"%s\" already exists",
234  stmt->trigname)));
235 
236  /* Find and validate the trigger function. */
237  funcoid = LookupFuncName(stmt->funcname, 0, fargtypes, false);
238  funcrettype = get_func_rettype(funcoid);
239  if (funcrettype != EVTTRIGGEROID)
240  ereport(ERROR,
241  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
242  errmsg("function %s must return type %s",
243  NameListToString(stmt->funcname), "event_trigger")));
244 
245  /* Insert catalog entries. */
246  return insert_event_trigger_tuple(stmt->trigname, stmt->eventname,
247  evtowner, funcoid, tags);
248 }
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:283
static Oid insert_event_trigger_tuple(char *trigname, char *eventname, Oid evtOwner, Oid funcoid, List *tags)
int errcode(int sqlerrcode)
Definition: elog.c:575
bool superuser(void)
Definition: superuser.c:47
unsigned int Oid
Definition: postgres_ext.h:31
#define SearchSysCache1(cacheId, key1)
Definition: syscache.h:149
Oid get_func_rettype(Oid funcid)
Definition: lsyscache.c:1427
#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:586
#define ereport(elevel, rest)
Definition: elog.h:122
Node * arg
Definition: parsenodes.h:676
char * NameListToString(List *names)
Definition: namespace.c:2897
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define EVTTRIGGEROID
Definition: pg_type.h:682
#define NULL
Definition: c.h:226
#define lfirst(lc)
Definition: pg_list.h:106
Oid LookupFuncName(List *funcname, int nargs, const Oid *argtypes, bool noError)
Definition: parse_func.c:1909
int errmsg(const char *fmt,...)
Definition: elog.c:797
char * defname
Definition: parsenodes.h:675
#define ERRCODE_DUPLICATE_OBJECT
Definition: streamutil.c:34
Definition: pg_list.h:45
static void error_duplicate_filter_variable ( const char *  defname)
static

Definition at line 362 of file event_trigger.c.

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

Referenced by CreateEventTrigger().

363 {
364  ereport(ERROR,
365  (errcode(ERRCODE_SYNTAX_ERROR),
366  errmsg("filter variable \"%s\" specified more than once",
367  defname)));
368 }
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
void EventTriggerAlterTableEnd ( void  )

Definition at line 1777 of file event_trigger.c.

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

Referenced by AlterTableMoveAll(), and ProcessUtilitySlow().

1778 {
1779  /* ignore if event trigger context not set, or collection disabled */
1780  if (!currentEventTriggerState ||
1782  return;
1783 
1784  /* If no subcommands, don't collect */
1786  {
1790  }
1791  else
1793 
1795 }
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
void pfree(void *pointer)
Definition: mcxt.c:992
CollectedCommand * currentCommand
Definition: event_trigger.c:66
List * lappend(List *list, void *datum)
Definition: list.c:128
#define NULL
Definition: c.h:226
static int list_length(const List *l)
Definition: pg_list.h:89
union CollectedCommand::@58 d
struct CollectedCommand::@58::@60 alterTable
void EventTriggerAlterTableRelid ( Oid  objectId)

Definition at line 1725 of file event_trigger.c.

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

Referenced by AlterTableInternal(), and ProcessUtilitySlow().

1726 {
1727  if (!currentEventTriggerState ||
1729  return;
1730 
1731  currentEventTriggerState->currentCommand->d.alterTable.objectId = objectId;
1732 }
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
CollectedCommand * currentCommand
Definition: event_trigger.c:66
union CollectedCommand::@58 d
struct CollectedCommand::@58::@60 alterTable
void EventTriggerAlterTableStart ( Node parsetree)

Definition at line 1692 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, RelationRelationId, SCT_AlterTable, and CollectedCommand::type.

Referenced by AlterTableMoveAll(), and ProcessUtilitySlow().

1693 {
1694  MemoryContext oldcxt;
1695  CollectedCommand *command;
1696 
1697  /* ignore if event trigger context not set, or collection disabled */
1698  if (!currentEventTriggerState ||
1700  return;
1701 
1703 
1704  command = palloc(sizeof(CollectedCommand));
1705 
1706  command->type = SCT_AlterTable;
1707  command->in_extension = creating_extension;
1708 
1709  command->d.alterTable.classId = RelationRelationId;
1710  command->d.alterTable.objectId = InvalidOid;
1711  command->d.alterTable.subcmds = NIL;
1712  command->parsetree = copyObject(parsetree);
1713 
1715 
1716  MemoryContextSwitchTo(oldcxt);
1717 }
#define NIL
Definition: pg_list.h:69
#define RelationRelationId
Definition: pg_class.h:29
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
void * copyObject(const void *from)
Definition: copyfuncs.c:4475
CollectedCommand * currentCommand
Definition: event_trigger.c:66
#define InvalidOid
Definition: postgres_ext.h:36
bool creating_extension
Definition: extension.c:67
union CollectedCommand::@58 d
void * palloc(Size size)
Definition: mcxt.c:891
struct CollectedCommand::@58::@60 alterTable
bool EventTriggerBeginCompleteQuery ( void  )

Definition at line 1217 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, NULL, EventTriggerQueryState::previous, slist_init(), EventTriggerQueryState::SQLDropList, EventTriggerQueryState::table_rewrite_oid, TopMemoryContext, and trackDroppedObjectsNeeded().

Referenced by ProcessUtilitySlow().

1218 {
1220  MemoryContext cxt;
1221 
1222  /*
1223  * Currently, sql_drop, table_rewrite, ddl_command_end events are the only
1224  * reason to have event trigger state at all; so if there are none, don't
1225  * install one.
1226  */
1228  return false;
1229 
1231  "event trigger state",
1233  state = MemoryContextAlloc(cxt, sizeof(EventTriggerQueryState));
1234  state->cxt = cxt;
1235  slist_init(&(state->SQLDropList));
1236  state->in_sql_drop = false;
1237  state->table_rewrite_oid = InvalidOid;
1238 
1241  state->currentCommand = NULL;
1242  state->commandList = NIL;
1244  currentEventTriggerState = state;
1245 
1246  return true;
1247 }
#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:145
CollectedCommand * currentCommand
Definition: event_trigger.c:66
struct EventTriggerQueryState * previous
Definition: event_trigger.c:69
MemoryContext TopMemoryContext
Definition: mcxt.c:43
MemoryContext AllocSetContextCreate(MemoryContext parent, const char *name, Size minContextSize, Size initBlockSize, Size maxBlockSize)
Definition: aset.c:440
#define InvalidOid
Definition: postgres_ext.h:36
#define NULL
Definition: c.h:226
Definition: regguts.h:298
void * MemoryContextAlloc(MemoryContext context, Size size)
Definition: mcxt.c:749
void EventTriggerCollectAlterDefPrivs ( AlterDefaultPrivilegesStmt stmt)

Definition at line 1951 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().

1952 {
1953  MemoryContext oldcxt;
1954  CollectedCommand *command;
1955 
1956  /* ignore if event trigger context not set, or collection disabled */
1957  if (!currentEventTriggerState ||
1959  return;
1960 
1962 
1963  command = palloc0(sizeof(CollectedCommand));
1964  command->type = SCT_AlterDefaultPrivileges;
1965  command->d.defprivs.objtype = stmt->action->objtype;
1966  command->in_extension = creating_extension;
1967  command->parsetree = copyObject(stmt);
1968 
1971  MemoryContextSwitchTo(oldcxt);
1972 }
struct CollectedCommand::@58::@65 defprivs
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
void * copyObject(const void *from)
Definition: copyfuncs.c:4475
List * lappend(List *list, void *datum)
Definition: list.c:128
void * palloc0(Size size)
Definition: mcxt.c:920
bool creating_extension
Definition: extension.c:67
union CollectedCommand::@58 d
GrantObjectType objtype
Definition: parsenodes.h:1755
void EventTriggerCollectAlterOpFam ( AlterOpFamilyStmt stmt,
Oid  opfamoid,
List operators,
List procedures 
)

Definition at line 1849 of file event_trigger.c.

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

Referenced by AlterOpFamilyAdd(), and AlterOpFamilyDrop().

1851 {
1852  MemoryContext oldcxt;
1853  CollectedCommand *command;
1854 
1855  /* ignore if event trigger context not set, or collection disabled */
1856  if (!currentEventTriggerState ||
1858  return;
1859 
1861 
1862  command = palloc(sizeof(CollectedCommand));
1863  command->type = SCT_AlterOpFamily;
1864  command->in_extension = creating_extension;
1865  ObjectAddressSet(command->d.opfam.address,
1866  OperatorFamilyRelationId, opfamoid);
1867  command->d.opfam.operators = operators;
1868  command->d.opfam.procedures = procedures;
1869  command->parsetree = copyObject(stmt);
1870 
1873 
1874  MemoryContextSwitchTo(oldcxt);
1875 }
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
#define OperatorFamilyRelationId
Definition: pg_opfamily.h:29
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
void * copyObject(const void *from)
Definition: copyfuncs.c:4475
struct CollectedCommand::@58::@62 opfam
List * lappend(List *list, void *datum)
Definition: list.c:128
bool creating_extension
Definition: extension.c:67
union CollectedCommand::@58 d
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
void * palloc(Size size)
Definition: mcxt.c:891
void EventTriggerCollectAlterTableSubcmd ( Node subcmd,
ObjectAddress  address 
)

Definition at line 1743 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().

1744 {
1745  MemoryContext oldcxt;
1747 
1748  /* ignore if event trigger context not set, or collection disabled */
1749  if (!currentEventTriggerState ||
1751  return;
1752 
1753  Assert(IsA(subcmd, AlterTableCmd));
1755 
1757 
1758  newsub = palloc(sizeof(CollectedATSubcmd));
1759  newsub->address = address;
1760  newsub->parsetree = copyObject(subcmd);
1761 
1764 
1765  MemoryContextSwitchTo(oldcxt);
1766 }
#define IsA(nodeptr, _type_)
Definition: nodes.h:559
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
#define OidIsValid(objectId)
Definition: c.h:533
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
void * copyObject(const void *from)
Definition: copyfuncs.c:4475
CollectedCommand * currentCommand
Definition: event_trigger.c:66
List * lappend(List *list, void *datum)
Definition: list.c:128
#define Assert(condition)
Definition: c.h:670
union CollectedCommand::@58 d
void * palloc(Size size)
Definition: mcxt.c:891
static color newsub(struct colormap *cm, color co)
Definition: regc_color.c:389
struct CollectedCommand::@58::@60 alterTable
ObjectAddress address
void EventTriggerCollectAlterTSConfig ( AlterTSConfigurationStmt stmt,
Oid  cfgId,
Oid dictIds,
int  ndicts 
)

Definition at line 1916 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, TSConfigRelationId, and CollectedCommand::type.

Referenced by DropConfigurationMapping(), and MakeConfigurationMapping().

1918 {
1919  MemoryContext oldcxt;
1920  CollectedCommand *command;
1921 
1922  /* ignore if event trigger context not set, or collection disabled */
1923  if (!currentEventTriggerState ||
1925  return;
1926 
1928 
1929  command = palloc0(sizeof(CollectedCommand));
1930  command->type = SCT_AlterTSConfig;
1931  command->in_extension = creating_extension;
1932  ObjectAddressSet(command->d.atscfg.address,
1933  TSConfigRelationId, cfgId);
1934  command->d.atscfg.dictIds = palloc(sizeof(Oid) * ndicts);
1935  memcpy(command->d.atscfg.dictIds, dictIds, sizeof(Oid) * ndicts);
1936  command->d.atscfg.ndicts = ndicts;
1937  command->parsetree = copyObject(stmt);
1938 
1941 
1942  MemoryContextSwitchTo(oldcxt);
1943 }
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
CollectedCommandType type
unsigned int Oid
Definition: postgres_ext.h:31
struct CollectedCommand::@58::@64 atscfg
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
void * copyObject(const void *from)
Definition: copyfuncs.c:4475
#define TSConfigRelationId
Definition: pg_ts_config.h:31
List * lappend(List *list, void *datum)
Definition: list.c:128
void * palloc0(Size size)
Definition: mcxt.c:920
bool creating_extension
Definition: extension.c:67
union CollectedCommand::@58 d
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
void * palloc(Size size)
Definition: mcxt.c:891
void EventTriggerCollectCreateOpClass ( CreateOpClassStmt stmt,
Oid  opcoid,
List operators,
List procedures 
)

Definition at line 1882 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, OperatorClassRelationId, palloc0(), CollectedCommand::parsetree, SCT_CreateOpClass, and CollectedCommand::type.

Referenced by DefineOpClass().

1884 {
1885  MemoryContext oldcxt;
1886  CollectedCommand *command;
1887 
1888  /* ignore if event trigger context not set, or collection disabled */
1889  if (!currentEventTriggerState ||
1891  return;
1892 
1894 
1895  command = palloc0(sizeof(CollectedCommand));
1896  command->type = SCT_CreateOpClass;
1897  command->in_extension = creating_extension;
1898  ObjectAddressSet(command->d.createopc.address,
1899  OperatorClassRelationId, opcoid);
1900  command->d.createopc.operators = operators;
1901  command->d.createopc.procedures = procedures;
1902  command->parsetree = copyObject(stmt);
1903 
1906 
1907  MemoryContextSwitchTo(oldcxt);
1908 }
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
#define OperatorClassRelationId
Definition: pg_opclass.h:49
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
void * copyObject(const void *from)
Definition: copyfuncs.c:4475
struct CollectedCommand::@58::@63 createopc
List * lappend(List *list, void *datum)
Definition: list.c:128
void * palloc0(Size size)
Definition: mcxt.c:920
bool creating_extension
Definition: extension.c:67
union CollectedCommand::@58 d
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
void EventTriggerCollectGrant ( InternalGrant istmt)

Definition at line 1805 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, NULL, InternalGrant::objects, palloc(), CollectedCommand::parsetree, SCT_Grant, and CollectedCommand::type.

Referenced by ExecGrantStmt_oids().

1806 {
1807  MemoryContext oldcxt;
1808  CollectedCommand *command;
1809  InternalGrant *icopy;
1810  ListCell *cell;
1811 
1812  /* ignore if event trigger context not set, or collection disabled */
1813  if (!currentEventTriggerState ||
1815  return;
1816 
1818 
1819  /*
1820  * This is tedious, but necessary.
1821  */
1822  icopy = palloc(sizeof(InternalGrant));
1823  memcpy(icopy, istmt, sizeof(InternalGrant));
1824  icopy->objects = list_copy(istmt->objects);
1825  icopy->grantees = list_copy(istmt->grantees);
1826  icopy->col_privs = NIL;
1827  foreach(cell, istmt->col_privs)
1828  icopy->col_privs = lappend(icopy->col_privs, copyObject(lfirst(cell)));
1829 
1830  /* Now collect it, using the copied InternalGrant */
1831  command = palloc(sizeof(CollectedCommand));
1832  command->type = SCT_Grant;
1833  command->in_extension = creating_extension;
1834  command->d.grant.istmt = icopy;
1835  command->parsetree = NULL;
1836 
1839 
1840  MemoryContextSwitchTo(oldcxt);
1841 }
#define NIL
Definition: pg_list.h:69
struct CollectedCommand::@58::@61 grant
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
List * list_copy(const List *oldlist)
Definition: list.c:1160
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
void * copyObject(const void *from)
Definition: copyfuncs.c:4475
List * lappend(List *list, void *datum)
Definition: list.c:128
bool creating_extension
Definition: extension.c:67
#define NULL
Definition: c.h:226
#define lfirst(lc)
Definition: pg_list.h:106
union CollectedCommand::@58 d
void * palloc(Size size)
Definition: mcxt.c:891
void EventTriggerCollectSimpleCommand ( ObjectAddress  address,
ObjectAddress  secondaryObject,
Node parsetree 
)

Definition at line 1649 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().

1652 {
1653  MemoryContext oldcxt;
1654  CollectedCommand *command;
1655 
1656  /* ignore if event trigger context not set, or collection disabled */
1657  if (!currentEventTriggerState ||
1659  return;
1660 
1662 
1663  command = palloc(sizeof(CollectedCommand));
1664 
1665  command->type = SCT_Simple;
1666  command->in_extension = creating_extension;
1667 
1668  command->d.simple.address = address;
1669  command->d.simple.secondaryObject = secondaryObject;
1670  command->parsetree = copyObject(parsetree);
1671 
1673  command);
1674 
1675  MemoryContextSwitchTo(oldcxt);
1676 }
struct CollectedCommand::@58::@59 simple
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
void * copyObject(const void *from)
Definition: copyfuncs.c:4475
List * lappend(List *list, void *datum)
Definition: list.c:128
bool creating_extension
Definition: extension.c:67
union CollectedCommand::@58 d
void * palloc(Size size)
Definition: mcxt.c:891
static List* EventTriggerCommonSetup ( Node parsetree,
EventTriggerEvent  event,
const char *  eventstr,
EventTriggerData trigdata 
)
static

Definition at line 691 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().

694 {
695  const char *tag;
696  List *cachelist;
697  ListCell *lc;
698  List *runlist = NIL;
699 
700  /*
701  * We want the list of command tags for which this procedure is actually
702  * invoked to match up exactly with the list that CREATE EVENT TRIGGER
703  * accepts. This debugging cross-check will throw an error if this
704  * function is invoked for a command tag that CREATE EVENT TRIGGER won't
705  * accept. (Unfortunately, there doesn't seem to be any simple, automated
706  * way to verify that CREATE EVENT TRIGGER doesn't accept extra stuff that
707  * never reaches this control point.)
708  *
709  * If this cross-check fails for you, you probably need to either adjust
710  * standard_ProcessUtility() not to invoke event triggers for the command
711  * type in question, or you need to adjust check_ddl_tag to accept the
712  * relevant command tag.
713  */
714 #ifdef USE_ASSERT_CHECKING
715  {
716  const char *dbgtag;
717 
718  dbgtag = CreateCommandTag(parsetree);
719  if (event == EVT_DDLCommandStart ||
720  event == EVT_DDLCommandEnd ||
721  event == EVT_SQLDrop)
722  {
724  elog(ERROR, "unexpected command tag \"%s\"", dbgtag);
725  }
726  else if (event == EVT_TableRewrite)
727  {
729  elog(ERROR, "unexpected command tag \"%s\"", dbgtag);
730  }
731  }
732 #endif
733 
734  /* Use cache to find triggers for this event; fast exit if none. */
735  cachelist = EventCacheLookup(event);
736  if (cachelist == NIL)
737  return NIL;
738 
739  /* Get the command tag. */
740  tag = CreateCommandTag(parsetree);
741 
742  /*
743  * Filter list of event triggers by command tag, and copy them into our
744  * memory context. Once we start running the command triggers, or indeed
745  * once we do anything at all that touches the catalogs, an invalidation
746  * might leave cachelist pointing at garbage, so we must do this before we
747  * can do much else.
748  */
749  foreach(lc, cachelist)
750  {
751  EventTriggerCacheItem *item = lfirst(lc);
752 
753  if (filter_event_trigger(&tag, item))
754  {
755  /* We must plan to fire this trigger. */
756  runlist = lappend_oid(runlist, item->fnoid);
757  }
758  }
759 
760  /* don't spend any more time on this if no functions to run */
761  if (runlist == NIL)
762  return NIL;
763 
764  trigdata->type = T_EventTriggerData;
765  trigdata->event = eventstr;
766  trigdata->parsetree = parsetree;
767  trigdata->tag = tag;
768 
769  return runlist;
770 }
#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:2012
#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
void EventTriggerDDLCommandEnd ( Node parsetree)

Definition at line 824 of file event_trigger.c.

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

Referenced by ProcessUtilitySlow().

825 {
826  List *runlist;
827  EventTriggerData trigdata;
828 
829  /*
830  * See EventTriggerDDLCommandStart for a discussion about why event
831  * triggers are disabled in single user mode.
832  */
833  if (!IsUnderPostmaster)
834  return;
835 
836  runlist = EventTriggerCommonSetup(parsetree,
837  EVT_DDLCommandEnd, "ddl_command_end",
838  &trigdata);
839  if (runlist == NIL)
840  return;
841 
842  /*
843  * Make sure anything the main command did will be visible to the event
844  * triggers.
845  */
847 
848  /* Run the triggers. */
849  EventTriggerInvoke(runlist, &trigdata);
850 
851  /* Cleanup. */
852  list_free(runlist);
853 }
#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:100
void CommandCounterIncrement(void)
Definition: xact.c:921
void list_free(List *list)
Definition: list.c:1133
Definition: pg_list.h:45
void EventTriggerDDLCommandStart ( Node parsetree)

Definition at line 776 of file event_trigger.c.

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

Referenced by ProcessUtilitySlow().

777 {
778  List *runlist;
779  EventTriggerData trigdata;
780 
781  /*
782  * Event Triggers are completely disabled in standalone mode. There are
783  * (at least) two reasons for this:
784  *
785  * 1. A sufficiently broken event trigger might not only render the
786  * database unusable, but prevent disabling itself to fix the situation.
787  * In this scenario, restarting in standalone mode provides an escape
788  * hatch.
789  *
790  * 2. BuildEventTriggerCache relies on systable_beginscan_ordered, and
791  * therefore will malfunction if pg_event_trigger's indexes are damaged.
792  * To allow recovery from a damaged index, we need some operating mode
793  * wherein event triggers are disabled. (Or we could implement
794  * heapscan-and-sort logic for that case, but having disaster recovery
795  * scenarios depend on code that's otherwise untested isn't appetizing.)
796  */
797  if (!IsUnderPostmaster)
798  return;
799 
800  runlist = EventTriggerCommonSetup(parsetree,
802  "ddl_command_start",
803  &trigdata);
804  if (runlist == NIL)
805  return;
806 
807  /* Run the triggers. */
808  EventTriggerInvoke(runlist, &trigdata);
809 
810  /* Cleanup. */
811  list_free(runlist);
812 
813  /*
814  * Make sure anything the event triggers did will be visible to the main
815  * command.
816  */
818 }
#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:100
void CommandCounterIncrement(void)
Definition: xact.c:921
void list_free(List *list)
Definition: list.c:1133
Definition: pg_list.h:45
void EventTriggerEndCompleteQuery ( void  )

Definition at line 1261 of file event_trigger.c.

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

Referenced by ProcessUtilitySlow().

1262 {
1263  EventTriggerQueryState *prevstate;
1264 
1265  prevstate = currentEventTriggerState->previous;
1266 
1267  /* this avoids the need for retail pfree of SQLDropList items: */
1269 
1270  currentEventTriggerState = prevstate;
1271 }
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:200
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
struct EventTriggerQueryState * previous
Definition: event_trigger.c:69
void EventTriggerInhibitCommandCollection ( void  )

Definition at line 1615 of file event_trigger.c.

References EventTriggerQueryState::commandCollectionInhibited.

Referenced by ProcessUtilitySlow().

1616 {
1618  return;
1619 
1621 }
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
static void EventTriggerInvoke ( List fn_oid_list,
EventTriggerData trigdata 
)
static

Definition at line 1004 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(), NULL, pgstat_end_function_usage(), and pgstat_init_function_usage().

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

1005 {
1006  MemoryContext context;
1007  MemoryContext oldcontext;
1008  ListCell *lc;
1009  bool first = true;
1010 
1011  /* Guard against stack overflow due to recursive event trigger */
1013 
1014  /*
1015  * Let's evaluate event triggers in their own memory context, so that any
1016  * leaks get cleaned up promptly.
1017  */
1019  "event trigger context",
1021  oldcontext = MemoryContextSwitchTo(context);
1022 
1023  /* Call each event trigger. */
1024  foreach(lc, fn_oid_list)
1025  {
1026  Oid fnoid = lfirst_oid(lc);
1027  FmgrInfo flinfo;
1028  FunctionCallInfoData fcinfo;
1029  PgStat_FunctionCallUsage fcusage;
1030 
1031  elog(DEBUG1, "EventTriggerInvoke %u", fnoid);
1032 
1033  /*
1034  * We want each event trigger to be able to see the results of the
1035  * previous event trigger's action. Caller is responsible for any
1036  * command-counter increment that is needed between the event trigger
1037  * and anything else in the transaction.
1038  */
1039  if (first)
1040  first = false;
1041  else
1043 
1044  /* Look up the function */
1045  fmgr_info(fnoid, &flinfo);
1046 
1047  /* Call the function, passing no arguments but setting a context. */
1048  InitFunctionCallInfoData(fcinfo, &flinfo, 0,
1049  InvalidOid, (Node *) trigdata, NULL);
1050  pgstat_init_function_usage(&fcinfo, &fcusage);
1051  FunctionCallInvoke(&fcinfo);
1052  pgstat_end_function_usage(&fcusage, true);
1053 
1054  /* Reclaim memory. */
1055  MemoryContextReset(context);
1056  }
1057 
1058  /* Restore old memory context and delete the temporary one. */
1059  MemoryContextSwitchTo(oldcontext);
1060  MemoryContextDelete(context);
1061 }
Definition: fmgr.h:53
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:200
#define DEBUG1
Definition: elog.h:25
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:508
void MemoryContextReset(MemoryContext context)
Definition: mcxt.c:135
unsigned int Oid
Definition: postgres_ext.h:31
void fmgr_info(Oid functionId, FmgrInfo *finfo)
Definition: fmgr.c:159
#define ALLOCSET_DEFAULT_SIZES
Definition: memutils.h:145
#define FunctionCallInvoke(fcinfo)
Definition: fmgr.h:129
void check_stack_depth(void)
Definition: postgres.c:3096
MemoryContext CurrentMemoryContext
Definition: mcxt.c:37
MemoryContext AllocSetContextCreate(MemoryContext parent, const char *name, Size minContextSize, Size initBlockSize, Size maxBlockSize)
Definition: aset.c:440
void CommandCounterIncrement(void)
Definition: xact.c:921
#define InvalidOid
Definition: postgres_ext.h:36
#define NULL
Definition: c.h:226
#define InitFunctionCallInfoData(Fcinfo, Flinfo, Nargs, Collation, Context, Resultinfo)
Definition: fmgr.h:112
void pgstat_end_function_usage(PgStat_FunctionCallUsage *fcu, bool finalize)
Definition: pgstat.c:1577
void pgstat_init_function_usage(FunctionCallInfoData *fcinfo, PgStat_FunctionCallUsage *fcu)
Definition: pgstat.c:1505
#define elog
Definition: elog.h:219
#define lfirst_oid(lc)
Definition: pg_list.h:108
void EventTriggerSQLDrop ( Node parsetree)

Definition at line 859 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().

860 {
861  List *runlist;
862  EventTriggerData trigdata;
863 
864  /*
865  * See EventTriggerDDLCommandStart for a discussion about why event
866  * triggers are disabled in single user mode.
867  */
868  if (!IsUnderPostmaster)
869  return;
870 
871  /*
872  * Use current state to determine whether this event fires at all. If
873  * there are no triggers for the sql_drop event, then we don't have
874  * anything to do here. Note that dropped object collection is disabled
875  * if this is the case, so even if we were to try to run, the list would
876  * be empty.
877  */
880  return;
881 
882  runlist = EventTriggerCommonSetup(parsetree,
883  EVT_SQLDrop, "sql_drop",
884  &trigdata);
885 
886  /*
887  * Nothing to do if run list is empty. Note this shouldn't happen,
888  * because if there are no sql_drop events, then objects-to-drop wouldn't
889  * have been collected in the first place and we would have quit above.
890  */
891  if (runlist == NIL)
892  return;
893 
894  /*
895  * Make sure anything the main command did will be visible to the event
896  * triggers.
897  */
899 
900  /*
901  * Make sure pg_event_trigger_dropped_objects only works when running
902  * these triggers. Use PG_TRY to ensure in_sql_drop is reset even when
903  * one trigger fails. (This is perhaps not necessary, as the currentState
904  * variable will be removed shortly by our caller, but it seems better to
905  * play safe.)
906  */
908 
909  /* Run the triggers. */
910  PG_TRY();
911  {
912  EventTriggerInvoke(runlist, &trigdata);
913  }
914  PG_CATCH();
915  {
917  PG_RE_THROW();
918  }
919  PG_END_TRY();
921 
922  /* Cleanup. */
923  list_free(runlist);
924 }
#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:100
static bool slist_is_empty(slist_head *head)
Definition: ilist.h:563
void CommandCounterIncrement(void)
Definition: xact.c:921
#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
void EventTriggerSQLDropAddObject ( const ObjectAddress object,
bool  original,
bool  normal 
)

Definition at line 1311 of file event_trigger.c.

References AccessShareLock, SQLDropObject::addrargs, SQLDropObject::address, SQLDropObject::addrnames, Assert, 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(), NamespaceRelationId, 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().

1312 {
1313  SQLDropObject *obj;
1314  MemoryContext oldcxt;
1315 
1317  return;
1318 
1320 
1321  /* don't report temp schemas except my own */
1322  if (object->classId == NamespaceRelationId &&
1323  (isAnyTempNamespace(object->objectId) &&
1324  !isTempNamespace(object->objectId)))
1325  return;
1326 
1328 
1329  obj = palloc0(sizeof(SQLDropObject));
1330  obj->address = *object;
1331  obj->original = original;
1332  obj->normal = normal;
1333 
1334  /*
1335  * Obtain schema names from the object's catalog tuple, if one exists;
1336  * this lets us skip objects in temp schemas. We trust that
1337  * ObjectProperty contains all object classes that can be
1338  * schema-qualified.
1339  */
1340  if (is_objectclass_supported(object->classId))
1341  {
1342  Relation catalog;
1343  HeapTuple tuple;
1344 
1345  catalog = heap_open(obj->address.classId, AccessShareLock);
1346  tuple = get_catalog_object_by_oid(catalog, obj->address.objectId);
1347 
1348  if (tuple)
1349  {
1350  AttrNumber attnum;
1351  Datum datum;
1352  bool isnull;
1353 
1355  if (attnum != InvalidAttrNumber)
1356  {
1357  datum = heap_getattr(tuple, attnum,
1358  RelationGetDescr(catalog), &isnull);
1359  if (!isnull)
1360  {
1361  Oid namespaceId;
1362 
1363  namespaceId = DatumGetObjectId(datum);
1364  /* temp objects are only reported if they are my own */
1365  if (isTempNamespace(namespaceId))
1366  {
1367  obj->schemaname = "pg_temp";
1368  obj->istemp = true;
1369  }
1370  else if (isAnyTempNamespace(namespaceId))
1371  {
1372  pfree(obj);
1373  heap_close(catalog, AccessShareLock);
1374  MemoryContextSwitchTo(oldcxt);
1375  return;
1376  }
1377  else
1378  {
1379  obj->schemaname = get_namespace_name(namespaceId);
1380  obj->istemp = false;
1381  }
1382  }
1383  }
1384 
1386  obj->address.objectSubId == 0)
1387  {
1388  attnum = get_object_attnum_name(obj->address.classId);
1389  if (attnum != InvalidAttrNumber)
1390  {
1391  datum = heap_getattr(tuple, attnum,
1392  RelationGetDescr(catalog), &isnull);
1393  if (!isnull)
1394  obj->objname = pstrdup(NameStr(*DatumGetName(datum)));
1395  }
1396  }
1397  }
1398 
1399  heap_close(catalog, AccessShareLock);
1400  }
1401  else
1402  {
1403  if (object->classId == NamespaceRelationId &&
1404  isTempNamespace(object->objectId))
1405  obj->istemp = true;
1406  }
1407 
1408  /* object identity, objname and objargs */
1409  obj->objidentity =
1410  getObjectIdentityParts(&obj->address, &obj->addrnames, &obj->addrargs);
1411 
1412  /* object type */
1414 
1416 
1417  MemoryContextSwitchTo(oldcxt);
1418 }
bool get_object_namensp_unique(Oid class_id)
slist_node next
#define NamespaceRelationId
Definition: pg_namespace.h:34
ObjectAddress address
char * getObjectTypeDescription(const ObjectAddress *object)
#define RelationGetDescr(relation)
Definition: rel.h:425
const char * objname
#define DatumGetObjectId(X)
Definition: postgres.h:508
char * pstrdup(const char *in)
Definition: mcxt.c:1165
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:2312
const char * objecttype
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
#define DatumGetName(X)
Definition: postgres.h:593
void pfree(void *pointer)
Definition: mcxt.c:992
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3006
bool isTempNamespace(Oid namespaceId)
Definition: namespace.c:2952
bool EventTriggerSupportsObjectClass(ObjectClass objclass)
const char * schemaname
#define heap_getattr(tup, attnum, tupleDesc, isnull)
Definition: htup_details.h:769
AttrNumber get_object_attnum_name(Oid class_id)
void * palloc0(Size size)
Definition: mcxt.c:920
uintptr_t Datum
Definition: postgres.h:374
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1287
#define Assert(condition)
Definition: c.h:670
HeapTuple get_catalog_object_by_oid(Relation catalog, Oid objectId)
#define InvalidAttrNumber
Definition: attnum.h:23
#define NameStr(name)
Definition: c.h:494
bool isAnyTempNamespace(Oid namespaceId)
Definition: namespace.c:2990
bool is_objectclass_supported(Oid class_id)
int16 AttrNumber
Definition: attnum.h:21
bool EventTriggerSupportsGrantObjectType ( GrantObjectType  objtype)

Definition at line 1183 of file event_trigger.c.

References ACL_OBJECT_COLUMN, ACL_OBJECT_DATABASE, ACL_OBJECT_DOMAIN, ACL_OBJECT_FDW, ACL_OBJECT_FOREIGN_SERVER, ACL_OBJECT_FUNCTION, ACL_OBJECT_LANGUAGE, ACL_OBJECT_LARGEOBJECT, ACL_OBJECT_NAMESPACE, ACL_OBJECT_RELATION, ACL_OBJECT_SEQUENCE, ACL_OBJECT_TABLESPACE, ACL_OBJECT_TYPE, and Assert.

Referenced by ExecGrantStmt_oids(), and standard_ProcessUtility().

1184 {
1185  switch (objtype)
1186  {
1187  case ACL_OBJECT_DATABASE:
1188  case ACL_OBJECT_TABLESPACE:
1189  /* no support for global objects */
1190  return false;
1191 
1192  case ACL_OBJECT_COLUMN:
1193  case ACL_OBJECT_RELATION:
1194  case ACL_OBJECT_SEQUENCE:
1195  case ACL_OBJECT_DOMAIN:
1196  case ACL_OBJECT_FDW:
1198  case ACL_OBJECT_FUNCTION:
1199  case ACL_OBJECT_LANGUAGE:
1201  case ACL_OBJECT_NAMESPACE:
1202  case ACL_OBJECT_TYPE:
1203  return true;
1204  default:
1205  Assert(false);
1206  return true;
1207  }
1208 }
#define Assert(condition)
Definition: c.h:670
bool EventTriggerSupportsObjectClass ( ObjectClass  objclass)

Definition at line 1131 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_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().

1132 {
1133  switch (objclass)
1134  {
1135  case OCLASS_DATABASE:
1136  case OCLASS_TBLSPACE:
1137  case OCLASS_ROLE:
1138  /* no support for global objects */
1139  return false;
1140  case OCLASS_EVENT_TRIGGER:
1141  /* no support for event triggers on event triggers */
1142  return false;
1143  case OCLASS_CLASS:
1144  case OCLASS_PROC:
1145  case OCLASS_TYPE:
1146  case OCLASS_CAST:
1147  case OCLASS_COLLATION:
1148  case OCLASS_CONSTRAINT:
1149  case OCLASS_CONVERSION:
1150  case OCLASS_DEFAULT:
1151  case OCLASS_LANGUAGE:
1152  case OCLASS_LARGEOBJECT:
1153  case OCLASS_OPERATOR:
1154  case OCLASS_OPCLASS:
1155  case OCLASS_OPFAMILY:
1156  case OCLASS_AMOP:
1157  case OCLASS_AMPROC:
1158  case OCLASS_REWRITE:
1159  case OCLASS_TRIGGER:
1160  case OCLASS_SCHEMA:
1161  case OCLASS_TRANSFORM:
1162  case OCLASS_TSPARSER:
1163  case OCLASS_TSDICT:
1164  case OCLASS_TSTEMPLATE:
1165  case OCLASS_TSCONFIG:
1166  case OCLASS_FDW:
1167  case OCLASS_FOREIGN_SERVER:
1168  case OCLASS_USER_MAPPING:
1169  case OCLASS_DEFACL:
1170  case OCLASS_EXTENSION:
1171  case OCLASS_POLICY:
1172  case OCLASS_AM:
1173  case OCLASS_PUBLICATION:
1175  case OCLASS_SUBSCRIPTION:
1176  return true;
1177  }
1178 
1179  return true;
1180 }
bool EventTriggerSupportsObjectType ( ObjectType  obtype)

Definition at line 1067 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_PUBLICATION, OBJECT_PUBLICATION_REL, OBJECT_ROLE, OBJECT_RULE, OBJECT_SCHEMA, OBJECT_SEQUENCE, 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 standard_ProcessUtility().

1068 {
1069  switch (obtype)
1070  {
1071  case OBJECT_DATABASE:
1072  case OBJECT_TABLESPACE:
1073  case OBJECT_ROLE:
1074  /* no support for global objects */
1075  return false;
1076  case OBJECT_EVENT_TRIGGER:
1077  /* no support for event triggers on event triggers */
1078  return false;
1079  case OBJECT_ACCESS_METHOD:
1080  case OBJECT_AGGREGATE:
1081  case OBJECT_AMOP:
1082  case OBJECT_AMPROC:
1083  case OBJECT_ATTRIBUTE:
1084  case OBJECT_CAST:
1085  case OBJECT_COLUMN:
1086  case OBJECT_COLLATION:
1087  case OBJECT_CONVERSION:
1088  case OBJECT_DEFACL:
1089  case OBJECT_DEFAULT:
1090  case OBJECT_DOMAIN:
1091  case OBJECT_DOMCONSTRAINT:
1092  case OBJECT_EXTENSION:
1093  case OBJECT_FDW:
1094  case OBJECT_FOREIGN_SERVER:
1095  case OBJECT_FOREIGN_TABLE:
1096  case OBJECT_FUNCTION:
1097  case OBJECT_INDEX:
1098  case OBJECT_LANGUAGE:
1099  case OBJECT_LARGEOBJECT:
1100  case OBJECT_MATVIEW:
1101  case OBJECT_OPCLASS:
1102  case OBJECT_OPERATOR:
1103  case OBJECT_OPFAMILY:
1104  case OBJECT_POLICY:
1105  case OBJECT_PUBLICATION:
1107  case OBJECT_RULE:
1108  case OBJECT_SCHEMA:
1109  case OBJECT_SEQUENCE:
1110  case OBJECT_SUBSCRIPTION:
1111  case OBJECT_TABCONSTRAINT:
1112  case OBJECT_TABLE:
1113  case OBJECT_TRANSFORM:
1114  case OBJECT_TRIGGER:
1116  case OBJECT_TSDICTIONARY:
1117  case OBJECT_TSPARSER:
1118  case OBJECT_TSTEMPLATE:
1119  case OBJECT_TYPE:
1120  case OBJECT_USER_MAPPING:
1121  case OBJECT_VIEW:
1122  return true;
1123  }
1124  return true;
1125 }
void EventTriggerTableRewrite ( Node parsetree,
Oid  tableOid,
int  reason 
)

Definition at line 931 of file event_trigger.c.

References CommandCounterIncrement(), DEBUG1, elog, 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().

932 {
933  List *runlist;
934  EventTriggerData trigdata;
935 
936  elog(DEBUG1, "EventTriggerTableRewrite(%u)", tableOid);
937 
938  /*
939  * Event Triggers are completely disabled in standalone mode. There are
940  * (at least) two reasons for this:
941  *
942  * 1. A sufficiently broken event trigger might not only render the
943  * database unusable, but prevent disabling itself to fix the situation.
944  * In this scenario, restarting in standalone mode provides an escape
945  * hatch.
946  *
947  * 2. BuildEventTriggerCache relies on systable_beginscan_ordered, and
948  * therefore will malfunction if pg_event_trigger's indexes are damaged.
949  * To allow recovery from a damaged index, we need some operating mode
950  * wherein event triggers are disabled. (Or we could implement
951  * heapscan-and-sort logic for that case, but having disaster recovery
952  * scenarios depend on code that's otherwise untested isn't appetizing.)
953  */
954  if (!IsUnderPostmaster)
955  return;
956 
957  runlist = EventTriggerCommonSetup(parsetree,
959  "table_rewrite",
960  &trigdata);
961  if (runlist == NIL)
962  return;
963 
964  /*
965  * Make sure pg_event_trigger_table_rewrite_oid only works when running
966  * these triggers. Use PG_TRY to ensure table_rewrite_oid is reset even
967  * when one trigger fails. (This is perhaps not necessary, as the
968  * currentState variable will be removed shortly by our caller, but it
969  * seems better to play safe.)
970  */
973 
974  /* Run the triggers. */
975  PG_TRY();
976  {
977  EventTriggerInvoke(runlist, &trigdata);
978  }
979  PG_CATCH();
980  {
983  PG_RE_THROW();
984  }
985  PG_END_TRY();
986 
989 
990  /* Cleanup. */
991  list_free(runlist);
992 
993  /*
994  * Make sure anything the event triggers did will be visible to the main
995  * command.
996  */
998 }
#define NIL
Definition: pg_list.h:69
#define DEBUG1
Definition: elog.h:25
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:100
void CommandCounterIncrement(void)
Definition: xact.c:921
#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 elog
Definition: elog.h:219
#define PG_TRY()
Definition: elog.h:284
Definition: pg_list.h:45
#define PG_END_TRY()
Definition: elog.h:300
void EventTriggerUndoInhibitCommandCollection ( void  )

Definition at line 1627 of file event_trigger.c.

References EventTriggerQueryState::commandCollectionInhibited.

Referenced by ProcessUtilitySlow().

1628 {
1630  return;
1631 
1633 }
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
static bool filter_event_trigger ( const char **  tag,
EventTriggerCacheItem item 
)
static

Definition at line 658 of file event_trigger.c.

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

Referenced by EventTriggerCommonSetup().

659 {
660  /*
661  * Filter by session replication role, knowing that we never see disabled
662  * items down here.
663  */
665  {
666  if (item->enabled == TRIGGER_FIRES_ON_ORIGIN)
667  return false;
668  }
669  else
670  {
671  if (item->enabled == TRIGGER_FIRES_ON_REPLICA)
672  return false;
673  }
674 
675  /* Filter by tags, if any were specified. */
676  if (item->ntags != 0 && bsearch(tag, item->tag,
677  item->ntags, sizeof(char *),
678  pg_qsort_strcmp) == NULL)
679  return false;
680 
681  /* if we reach that point, we're not filtering out this item */
682  return true;
683 }
#define TRIGGER_FIRES_ON_ORIGIN
Definition: trigger.h:109
int SessionReplicationRole
Definition: trigger.c:64
#define SESSION_REPLICATION_ROLE_REPLICA
Definition: trigger.h:101
#define NULL
Definition: c.h:226
int pg_qsort_strcmp(const void *a, const void *b)
Definition: qsort.c:232
#define TRIGGER_FIRES_ON_REPLICA
Definition: trigger.h:111
static Datum filter_list_to_array ( List filterlist)
static

Definition at line 447 of file event_trigger.c.

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

Referenced by insert_event_trigger_tuple().

448 {
449  ListCell *lc;
450  Datum *data;
451  int i = 0,
452  l = list_length(filterlist);
453 
454  data = (Datum *) palloc(l * sizeof(Datum));
455 
456  foreach(lc, filterlist)
457  {
458  const char *value = strVal(lfirst(lc));
459  char *result,
460  *p;
461 
462  result = pstrdup(value);
463  for (p = result; *p; p++)
464  *p = pg_ascii_toupper((unsigned char) *p);
465  data[i++] = PointerGetDatum(cstring_to_text(result));
466  pfree(result);
467  }
468 
469  return PointerGetDatum(construct_array(data, l, TEXTOID, -1, false, 'i'));
470 }
static struct @76 value
#define TEXTOID
Definition: pg_type.h:324
#define PointerGetDatum(X)
Definition: postgres.h:564
char * pstrdup(const char *in)
Definition: mcxt.c:1165
ArrayType * construct_array(Datum *elems, int nelems, Oid elmtype, int elmlen, bool elmbyval, char elmalign)
Definition: arrayfuncs.c:3306
#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:992
uintptr_t Datum
Definition: postgres.h:374
text * cstring_to_text(const char *s)
Definition: varlena.c:151
#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:891
int i
Oid get_event_trigger_oid ( const char *  trigname,
bool  missing_ok 
)

Definition at line 640 of file event_trigger.c.

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

Referenced by get_object_address_unqualified().

641 {
642  Oid oid;
643 
645  if (!OidIsValid(oid) && !missing_ok)
646  ereport(ERROR,
647  (errcode(ERRCODE_UNDEFINED_OBJECT),
648  errmsg("event trigger \"%s\" does not exist", trigname)));
649  return oid;
650 }
int errcode(int sqlerrcode)
Definition: elog.c:575
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:533
#define GetSysCacheOid1(cacheId, key1)
Definition: syscache.h:176
#define ERROR
Definition: elog.h:43
#define CStringGetDatum(X)
Definition: postgres.h:586
#define ereport(elevel, rest)
Definition: elog.h:122
int errmsg(const char *fmt,...)
Definition: elog.c:797
static Oid insert_event_trigger_tuple ( char *  trigname,
char *  eventname,
Oid  evtOwner,
Oid  funcoid,
List tags 
)
static

Definition at line 374 of file event_trigger.c.

References Anum_pg_event_trigger_evtenabled, Anum_pg_event_trigger_evtevent, Anum_pg_event_trigger_evtfoid, Anum_pg_event_trigger_evtname, Anum_pg_event_trigger_evtowner, Anum_pg_event_trigger_evttags, CatalogTupleInsert(), CharGetDatum, ObjectAddress::classId, DEPENDENCY_NORMAL, EventTriggerRelationId, filter_list_to_array(), heap_close, heap_form_tuple(), heap_freetuple(), heap_open(), InvokeObjectPostCreateHook, NameGetDatum, namestrcpy(), Natts_pg_trigger, NIL, ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, ProcedureRelationId, RelationData::rd_att, recordDependencyOn(), recordDependencyOnCurrentExtension(), recordDependencyOnOwner(), RowExclusiveLock, TRIGGER_FIRES_ON_ORIGIN, and values.

Referenced by CreateEventTrigger().

376 {
377  Relation tgrel;
378  Oid trigoid;
379  HeapTuple tuple;
381  bool nulls[Natts_pg_trigger];
382  NameData evtnamedata,
383  evteventdata;
384  ObjectAddress myself,
385  referenced;
386 
387  /* Open pg_event_trigger. */
389 
390  /* Build the new pg_trigger tuple. */
391  memset(nulls, false, sizeof(nulls));
392  namestrcpy(&evtnamedata, trigname);
393  values[Anum_pg_event_trigger_evtname - 1] = NameGetDatum(&evtnamedata);
394  namestrcpy(&evteventdata, eventname);
395  values[Anum_pg_event_trigger_evtevent - 1] = NameGetDatum(&evteventdata);
396  values[Anum_pg_event_trigger_evtowner - 1] = ObjectIdGetDatum(evtOwner);
397  values[Anum_pg_event_trigger_evtfoid - 1] = ObjectIdGetDatum(funcoid);
400  if (taglist == NIL)
401  nulls[Anum_pg_event_trigger_evttags - 1] = true;
402  else
403  values[Anum_pg_event_trigger_evttags - 1] =
404  filter_list_to_array(taglist);
405 
406  /* Insert heap tuple. */
407  tuple = heap_form_tuple(tgrel->rd_att, values, nulls);
408  trigoid = CatalogTupleInsert(tgrel, tuple);
409  heap_freetuple(tuple);
410 
411  /* Depend on owner. */
413 
414  /* Depend on event trigger function. */
416  myself.objectId = trigoid;
417  myself.objectSubId = 0;
418  referenced.classId = ProcedureRelationId;
419  referenced.objectId = funcoid;
420  referenced.objectSubId = 0;
421  recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
422 
423  /* Depend on extension, if any. */
424  recordDependencyOnCurrentExtension(&myself, false);
425 
426  /* Post creation hook for new event trigger */
428 
429  /* Close pg_event_trigger. */
431 
432  return trigoid;
433 }
#define Anum_pg_event_trigger_evtname
#define NIL
Definition: pg_list.h:69
#define Anum_pg_event_trigger_evtevent
#define NameGetDatum(X)
Definition: postgres.h:603
#define InvokeObjectPostCreateHook(classId, objectId, subId)
Definition: objectaccess.h:145
#define ProcedureRelationId
Definition: pg_proc.h:33
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:692
#define heap_close(r, l)
Definition: heapam.h:97
void recordDependencyOnOwner(Oid classId, Oid objectId, Oid owner)
Definition: pg_shdepend.c:158
#define Anum_pg_event_trigger_evtfoid
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1374
unsigned int Oid
Definition: postgres_ext.h:31
int namestrcpy(Name name, const char *str)
Definition: name.c:217
#define TRIGGER_FIRES_ON_ORIGIN
Definition: trigger.h:109
#define ObjectIdGetDatum(X)
Definition: postgres.h:515
Oid CatalogTupleInsert(Relation heapRel, HeapTuple tup)
Definition: indexing.c:162
static Datum filter_list_to_array(List *filterlist)
Definition: c.h:488
#define RowExclusiveLock
Definition: lockdefs.h:38
uintptr_t Datum
Definition: postgres.h:374
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1287
TupleDesc rd_att
Definition: rel.h:114
#define EventTriggerRelationId
void recordDependencyOnCurrentExtension(const ObjectAddress *object, bool isReplace)
Definition: pg_depend.c:139
#define Anum_pg_event_trigger_evttags
#define Anum_pg_event_trigger_evtenabled
#define CharGetDatum(X)
Definition: postgres.h:424
static Datum values[MAXATTR]
Definition: bootstrap.c:162
#define Anum_pg_event_trigger_evtowner
#define Natts_pg_trigger
Definition: pg_trigger.h:78
Datum pg_event_trigger_ddl_commands ( PG_FUNCTION_ARGS  )

Definition at line 1979 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, NULL, 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_grantobjtype(), tuplestore_begin_heap(), tuplestore_donestoring, tuplestore_putvalues(), CollectedCommand::type, TYPEFUNC_COMPOSITE, values, and work_mem.

1980 {
1981  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
1982  TupleDesc tupdesc;
1983  Tuplestorestate *tupstore;
1984  MemoryContext per_query_ctx;
1985  MemoryContext oldcontext;
1986  ListCell *lc;
1987 
1988  /*
1989  * Protect this function from being called out of context
1990  */
1992  ereport(ERROR,
1993  (errcode(ERRCODE_E_R_I_E_EVENT_TRIGGER_PROTOCOL_VIOLATED),
1994  errmsg("%s can only be called in an event trigger function",
1995  "pg_event_trigger_ddl_commands()")));
1996 
1997  /* check to see if caller supports us returning a tuplestore */
1998  if (rsinfo == NULL || !IsA(rsinfo, ReturnSetInfo))
1999  ereport(ERROR,
2000  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
2001  errmsg("set-valued function called in context that cannot accept a set")));
2002  if (!(rsinfo->allowedModes & SFRM_Materialize))
2003  ereport(ERROR,
2004  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
2005  errmsg("materialize mode required, but it is not allowed in this context")));
2006 
2007  /* Build a tuple descriptor for our result type */
2008  if (get_call_result_type(fcinfo, NULL, &tupdesc) != TYPEFUNC_COMPOSITE)
2009  elog(ERROR, "return type must be a row type");
2010 
2011  /* Build tuplestore to hold the result rows */
2012  per_query_ctx = rsinfo->econtext->ecxt_per_query_memory;
2013  oldcontext = MemoryContextSwitchTo(per_query_ctx);
2014 
2015  tupstore = tuplestore_begin_heap(true, false, work_mem);
2016  rsinfo->returnMode = SFRM_Materialize;
2017  rsinfo->setResult = tupstore;
2018  rsinfo->setDesc = tupdesc;
2019 
2020  MemoryContextSwitchTo(oldcontext);
2021 
2023  {
2024  CollectedCommand *cmd = lfirst(lc);
2025  Datum values[9];
2026  bool nulls[9];
2027  ObjectAddress addr;
2028  int i = 0;
2029 
2030  /*
2031  * For IF NOT EXISTS commands that attempt to create an existing
2032  * object, the returned OID is Invalid. Don't return anything.
2033  *
2034  * One might think that a viable alternative would be to look up the
2035  * Oid of the existing object and run the deparse with that. But
2036  * since the parse tree might be different from the one that created
2037  * the object in the first place, we might not end up in a consistent
2038  * state anyway.
2039  */
2040  if (cmd->type == SCT_Simple &&
2041  !OidIsValid(cmd->d.simple.address.objectId))
2042  continue;
2043 
2044  MemSet(nulls, 0, sizeof(nulls));
2045 
2046  switch (cmd->type)
2047  {
2048  case SCT_Simple:
2049  case SCT_AlterTable:
2050  case SCT_AlterOpFamily:
2051  case SCT_CreateOpClass:
2052  case SCT_AlterTSConfig:
2053  {
2054  char *identity;
2055  char *type;
2056  char *schema = NULL;
2057 
2058  if (cmd->type == SCT_Simple)
2059  addr = cmd->d.simple.address;
2060  else if (cmd->type == SCT_AlterTable)
2061  ObjectAddressSet(addr,
2062  cmd->d.alterTable.classId,
2063  cmd->d.alterTable.objectId);
2064  else if (cmd->type == SCT_AlterOpFamily)
2065  addr = cmd->d.opfam.address;
2066  else if (cmd->type == SCT_CreateOpClass)
2067  addr = cmd->d.createopc.address;
2068  else if (cmd->type == SCT_AlterTSConfig)
2069  addr = cmd->d.atscfg.address;
2070 
2071  type = getObjectTypeDescription(&addr);
2072  identity = getObjectIdentity(&addr);
2073 
2074  /*
2075  * Obtain schema name, if any ("pg_temp" if a temp
2076  * object). If the object class is not in the supported
2077  * list here, we assume it's a schema-less object type,
2078  * and thus "schema" remains set to NULL.
2079  */
2081  {
2082  AttrNumber nspAttnum;
2083 
2084  nspAttnum = get_object_attnum_namespace(addr.classId);
2085  if (nspAttnum != InvalidAttrNumber)
2086  {
2087  Relation catalog;
2088  HeapTuple objtup;
2089  Oid schema_oid;
2090  bool isnull;
2091 
2092  catalog = heap_open(addr.classId, AccessShareLock);
2093  objtup = get_catalog_object_by_oid(catalog,
2094  addr.objectId);
2095  if (!HeapTupleIsValid(objtup))
2096  elog(ERROR, "cache lookup failed for object %u/%u",
2097  addr.classId, addr.objectId);
2098  schema_oid =
2099  heap_getattr(objtup, nspAttnum,
2100  RelationGetDescr(catalog), &isnull);
2101  if (isnull)
2102  elog(ERROR,
2103  "invalid null namespace in object %u/%u/%d",
2104  addr.classId, addr.objectId, addr.objectSubId);
2105  /* XXX not quite get_namespace_name_or_temp */
2106  if (isAnyTempNamespace(schema_oid))
2107  schema = pstrdup("pg_temp");
2108  else
2109  schema = get_namespace_name(schema_oid);
2110 
2111  heap_close(catalog, AccessShareLock);
2112  }
2113  }
2114 
2115  /* classid */
2116  values[i++] = ObjectIdGetDatum(addr.classId);
2117  /* objid */
2118  values[i++] = ObjectIdGetDatum(addr.objectId);
2119  /* objsubid */
2120  values[i++] = Int32GetDatum(addr.objectSubId);
2121  /* command tag */
2122  values[i++] = CStringGetTextDatum(CreateCommandTag(cmd->parsetree));
2123  /* object_type */
2124  values[i++] = CStringGetTextDatum(type);
2125  /* schema */
2126  if (schema == NULL)
2127  nulls[i++] = true;
2128  else
2129  values[i++] = CStringGetTextDatum(schema);
2130  /* identity */
2131  values[i++] = CStringGetTextDatum(identity);
2132  /* in_extension */
2133  values[i++] = BoolGetDatum(cmd->in_extension);
2134  /* command */
2135  values[i++] = PointerGetDatum(cmd);
2136  }
2137  break;
2138 
2140  /* classid */
2141  nulls[i++] = true;
2142  /* objid */
2143  nulls[i++] = true;
2144  /* objsubid */
2145  nulls[i++] = true;
2146  /* command tag */
2147  values[i++] = CStringGetTextDatum(CreateCommandTag(cmd->parsetree));
2148  /* object_type */
2150  cmd->d.defprivs.objtype));
2151  /* schema */
2152  nulls[i++] = true;
2153  /* identity */
2154  nulls[i++] = true;
2155  /* in_extension */
2156  values[i++] = BoolGetDatum(cmd->in_extension);
2157  /* command */
2158  values[i++] = PointerGetDatum(cmd);
2159  break;
2160 
2161  case SCT_Grant:
2162  /* classid */
2163  nulls[i++] = true;
2164  /* objid */
2165  nulls[i++] = true;
2166  /* objsubid */
2167  nulls[i++] = true;
2168  /* command tag */
2169  values[i++] = CStringGetTextDatum(cmd->d.grant.istmt->is_grant ?
2170  "GRANT" : "REVOKE");
2171  /* object_type */
2173  cmd->d.grant.istmt->objtype));
2174  /* schema */
2175  nulls[i++] = true;
2176  /* identity */
2177  nulls[i++] = true;
2178  /* in_extension */
2179  values[i++] = BoolGetDatum(cmd->in_extension);
2180  /* command */
2181  values[i++] = PointerGetDatum(cmd);
2182  break;
2183  }
2184 
2185  tuplestore_putvalues(tupstore, tupdesc, values, nulls);
2186  }
2187 
2188  /* clean up and return the tuplestore */
2189  tuplestore_donestoring(tupstore);
2190 
2191  PG_RETURN_VOID();
2192 }
void tuplestore_putvalues(Tuplestorestate *state, TupleDesc tdesc, Datum *values, bool *isnull)
Definition: tuplestore.c:735
#define IsA(nodeptr, _type_)
Definition: nodes.h:559
TypeFuncClass get_call_result_type(FunctionCallInfo fcinfo, Oid *resultTypeId, TupleDesc *resultTupleDesc)
Definition: funcapi.c:211
char * getObjectTypeDescription(const ObjectAddress *object)
struct CollectedCommand::@58::@61 grant
#define RelationGetDescr(relation)
Definition: rel.h:425
#define PointerGetDatum(X)
Definition: postgres.h:564
char * pstrdup(const char *in)
Definition: mcxt.c:1165
struct CollectedCommand::@58::@59 simple
struct CollectedCommand::@58::@65 defprivs
#define tuplestore_donestoring(state)
Definition: tuplestore.h:60
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
#define AccessShareLock
Definition: lockdefs.h:36
static const char * stringify_adefprivs_objtype(GrantObjectType objtype)
int errcode(int sqlerrcode)
Definition: elog.c:575
#define MemSet(start, val, len)
Definition: c.h:852
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:533
struct CollectedCommand::@58::@64 atscfg
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
static const char * stringify_grantobjtype(GrantObjectType objtype)
#define ObjectIdGetDatum(X)
Definition: postgres.h:515
#define ERROR
Definition: elog.h:43
char * getObjectIdentity(const ObjectAddress *object)
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3006
struct CollectedCommand::@58::@63 createopc
struct CollectedCommand::@58::@62 opfam
#define ereport(elevel, rest)
Definition: elog.h:122
const char * CreateCommandTag(Node *parsetree)
Definition: utility.c:2012
#define heap_getattr(tup, attnum, tupleDesc, isnull)
Definition: htup_details.h:769
Tuplestorestate * tuplestore_begin_heap(bool randomAccess, bool interXact, int maxKBytes)
Definition: tuplestore.c:316
uintptr_t Datum
Definition: postgres.h:374
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1287
int work_mem
Definition: globals.c:112
#define BoolGetDatum(X)
Definition: postgres.h:410
int allowedModes
Definition: execnodes.h:199
#define PG_RETURN_VOID()
Definition: fmgr.h:293
SetFunctionReturnMode returnMode
Definition: execnodes.h:201
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define NULL
Definition: c.h:226
#define lfirst(lc)
Definition: pg_list.h:106
MemoryContext ecxt_per_query_memory
Definition: execnodes.h:133
HeapTuple get_catalog_object_by_oid(Relation catalog, Oid objectId)
#define InvalidAttrNumber
Definition: attnum.h:23
union CollectedCommand::@58 d
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
Tuplestorestate * setResult
Definition: execnodes.h:204
static Datum values[MAXATTR]
Definition: bootstrap.c:162
ExprContext * econtext
Definition: execnodes.h:197
#define Int32GetDatum(X)
Definition: postgres.h:487
TupleDesc setDesc
Definition: execnodes.h:205
int errmsg(const char *fmt,...)
Definition: elog.c:797
int i
#define CStringGetTextDatum(s)
Definition: builtins.h:90
bool isAnyTempNamespace(Oid namespaceId)
Definition: namespace.c:2990
#define elog
Definition: elog.h:219
bool is_objectclass_supported(Oid class_id)
struct CollectedCommand::@58::@60 alterTable
int16 AttrNumber
Definition: attnum.h:21
Datum pg_event_trigger_dropped_objects ( PG_FUNCTION_ARGS  )

Definition at line 1427 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, NULL, 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(), TEXTOID, tuplestore_begin_heap(), tuplestore_donestoring, tuplestore_putvalues(), TYPEFUNC_COMPOSITE, values, and work_mem.

1428 {
1429  ReturnSetInfo *rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
1430  TupleDesc tupdesc;
1431  Tuplestorestate *tupstore;
1432  MemoryContext per_query_ctx;
1433  MemoryContext oldcontext;
1434  slist_iter iter;
1435 
1436  /*
1437  * Protect this function from being called out of context
1438  */
1439  if (!currentEventTriggerState ||
1441  ereport(ERROR,
1442  (errcode(ERRCODE_E_R_I_E_EVENT_TRIGGER_PROTOCOL_VIOLATED),
1443  errmsg("%s can only be called in a sql_drop event trigger function",
1444  "pg_event_trigger_dropped_objects()")));
1445 
1446  /* check to see if caller supports us returning a tuplestore */
1447  if (rsinfo == NULL || !IsA(rsinfo, ReturnSetInfo))
1448  ereport(ERROR,
1449  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1450  errmsg("set-valued function called in context that cannot accept a set")));
1451  if (!(rsinfo->allowedModes & SFRM_Materialize))
1452  ereport(ERROR,
1453  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1454  errmsg("materialize mode required, but it is not allowed in this context")));
1455 
1456  /* Build a tuple descriptor for our result type */
1457  if (get_call_result_type(fcinfo, NULL, &tupdesc) != TYPEFUNC_COMPOSITE)
1458  elog(ERROR, "return type must be a row type");
1459 
1460  /* Build tuplestore to hold the result rows */
1461  per_query_ctx = rsinfo->econtext->ecxt_per_query_memory;
1462  oldcontext = MemoryContextSwitchTo(per_query_ctx);
1463 
1464  tupstore = tuplestore_begin_heap(true, false, work_mem);
1465  rsinfo->returnMode = SFRM_Materialize;
1466  rsinfo->setResult = tupstore;
1467  rsinfo->setDesc = tupdesc;
1468 
1469  MemoryContextSwitchTo(oldcontext);
1470 
1472  {
1473  SQLDropObject *obj;
1474  int i = 0;
1475  Datum values[12];
1476  bool nulls[12];
1477 
1478  obj = slist_container(SQLDropObject, next, iter.cur);
1479 
1480  MemSet(values, 0, sizeof(values));
1481  MemSet(nulls, 0, sizeof(nulls));
1482 
1483  /* classid */
1484  values[i++] = ObjectIdGetDatum(obj->address.classId);
1485 
1486  /* objid */
1487  values[i++] = ObjectIdGetDatum(obj->address.objectId);
1488 
1489  /* objsubid */
1490  values[i++] = Int32GetDatum(obj->address.objectSubId);
1491 
1492  /* original */
1493  values[i++] = BoolGetDatum(obj->original);
1494 
1495  /* normal */
1496  values[i++] = BoolGetDatum(obj->normal);
1497 
1498  /* is_temporary */
1499  values[i++] = BoolGetDatum(obj->istemp);
1500 
1501  /* object_type */
1502  values[i++] = CStringGetTextDatum(obj->objecttype);
1503 
1504  /* schema_name */
1505  if (obj->schemaname)
1506  values[i++] = CStringGetTextDatum(obj->schemaname);
1507  else
1508  nulls[i++] = true;
1509 
1510  /* object_name */
1511  if (obj->objname)
1512  values[i++] = CStringGetTextDatum(obj->objname);
1513  else
1514  nulls[i++] = true;
1515 
1516  /* object_identity */
1517  if (obj->objidentity)
1518  values[i++] = CStringGetTextDatum(obj->objidentity);
1519  else
1520  nulls[i++] = true;
1521 
1522  /* address_names and address_args */
1523  if (obj->addrnames)
1524  {
1525  values[i++] = PointerGetDatum(strlist_to_textarray(obj->addrnames));
1526 
1527  if (obj->addrargs)
1528  values[i++] = PointerGetDatum(strlist_to_textarray(obj->addrargs));
1529  else
1531  }
1532  else
1533  {
1534  nulls[i++] = true;
1535  nulls[i++] = true;
1536  }
1537 
1538  tuplestore_putvalues(tupstore, tupdesc, values, nulls);
1539  }
1540 
1541  /* clean up and return the tuplestore */
1542  tuplestore_donestoring(tupstore);
1543 
1544  return (Datum) 0;
1545 }
void tuplestore_putvalues(Tuplestorestate *state, TupleDesc tdesc, Datum *values, bool *isnull)
Definition: tuplestore.c:735
#define IsA(nodeptr, _type_)
Definition: nodes.h:559
TypeFuncClass get_call_result_type(FunctionCallInfo fcinfo, Oid *resultTypeId, TupleDesc *resultTupleDesc)
Definition: funcapi.c:211
static int32 next
Definition: blutils.c:210
ObjectAddress address
#define TEXTOID
Definition: pg_type.h:324
#define PointerGetDatum(X)
Definition: postgres.h:564
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:852
const char * objidentity
ArrayType * construct_empty_array(Oid elmtype)
Definition: arrayfuncs.c:3424
const char * objecttype
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
#define ObjectIdGetDatum(X)
Definition: postgres.h:515
#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:316
#define slist_container(type, membername, ptr)
Definition: ilist.h:674
uintptr_t Datum
Definition: postgres.h:374
int work_mem
Definition: globals.c:112
#define BoolGetDatum(X)
Definition: postgres.h:410
int allowedModes
Definition: execnodes.h:199
SetFunctionReturnMode returnMode
Definition: execnodes.h:201
#define NULL
Definition: c.h:226
MemoryContext ecxt_per_query_memory
Definition: execnodes.h:133
Tuplestorestate * setResult
Definition: execnodes.h:204
static Datum values[MAXATTR]
Definition: bootstrap.c:162
ExprContext * econtext
Definition: execnodes.h:197
#define slist_foreach(iter, lhead)
Definition: ilist.h:700
#define Int32GetDatum(X)
Definition: postgres.h:487
TupleDesc setDesc
Definition: execnodes.h:205
int errmsg(const char *fmt,...)
Definition: elog.c:797
int i
#define CStringGetTextDatum(s)
Definition: builtins.h:90
ArrayType * strlist_to_textarray(List *list)
#define elog
Definition: elog.h:219
Datum pg_event_trigger_table_rewrite_oid ( PG_FUNCTION_ARGS  )

Definition at line 1554 of file event_trigger.c.

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

1555 {
1556  /*
1557  * Protect this function from being called out of context
1558  */
1559  if (!currentEventTriggerState ||
1561  ereport(ERROR,
1562  (errcode(ERRCODE_E_R_I_E_EVENT_TRIGGER_PROTOCOL_VIOLATED),
1563  errmsg("%s can only be called in a table_rewrite event trigger function",
1564  "pg_event_trigger_table_rewrite_oid()")));
1565 
1567 }
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:304
Datum pg_event_trigger_table_rewrite_reason ( PG_FUNCTION_ARGS  )

Definition at line 1575 of file event_trigger.c.

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

1576 {
1577  /*
1578  * Protect this function from being called out of context
1579  */
1580  if (!currentEventTriggerState ||
1582  ereport(ERROR,
1583  (errcode(ERRCODE_E_R_I_E_EVENT_TRIGGER_PROTOCOL_VIOLATED),
1584  errmsg("%s can only be called in a table_rewrite event trigger function",
1585  "pg_event_trigger_table_rewrite_reason()")));
1586 
1588 }
#define PG_RETURN_INT32(x)
Definition: fmgr.h:298
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
void RemoveEventTriggerById ( Oid  trigOid)

Definition at line 476 of file event_trigger.c.

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

Referenced by doDeletion().

477 {
478  Relation tgrel;
479  HeapTuple tup;
480 
482 
484  if (!HeapTupleIsValid(tup))
485  elog(ERROR, "cache lookup failed for event trigger %u", trigOid);
486 
487  CatalogTupleDelete(tgrel, &tup->t_self);
488 
489  ReleaseSysCache(tup);
490 
492 }
void CatalogTupleDelete(Relation heapRel, ItemPointer tid)
Definition: indexing.c:255
#define heap_close(r, l)
Definition: heapam.h:97
#define SearchSysCache1(cacheId, key1)
Definition: syscache.h:149
#define ObjectIdGetDatum(X)
Definition: postgres.h:515
#define ERROR
Definition: elog.h:43
ItemPointerData t_self
Definition: htup.h:65
#define RowExclusiveLock
Definition: lockdefs.h:38
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1083
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1287
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define EventTriggerRelationId
#define elog
Definition: elog.h:219
static const char * stringify_adefprivs_objtype ( GrantObjectType  objtype)
static

Definition at line 2240 of file event_trigger.c.

References ACL_OBJECT_FUNCTION, ACL_OBJECT_RELATION, ACL_OBJECT_SEQUENCE, ACL_OBJECT_TYPE, elog, and ERROR.

Referenced by pg_event_trigger_ddl_commands().

2241 {
2242  switch (objtype)
2243  {
2244  case ACL_OBJECT_RELATION:
2245  return "TABLES";
2246  break;
2247  case ACL_OBJECT_FUNCTION:
2248  return "FUNCTIONS";
2249  break;
2250  case ACL_OBJECT_SEQUENCE:
2251  return "SEQUENCES";
2252  break;
2253  case ACL_OBJECT_TYPE:
2254  return "TYPES";
2255  break;
2256  default:
2257  elog(ERROR, "unrecognized type %d", objtype);
2258  return "???"; /* keep compiler quiet */
2259  }
2260 }
#define ERROR
Definition: elog.h:43
#define elog
Definition: elog.h:219
static const char * stringify_grantobjtype ( GrantObjectType  objtype)
static

Definition at line 2199 of file event_trigger.c.

References ACL_OBJECT_COLUMN, ACL_OBJECT_DATABASE, ACL_OBJECT_DOMAIN, ACL_OBJECT_FDW, ACL_OBJECT_FOREIGN_SERVER, ACL_OBJECT_FUNCTION, ACL_OBJECT_LANGUAGE, ACL_OBJECT_LARGEOBJECT, ACL_OBJECT_NAMESPACE, ACL_OBJECT_RELATION, ACL_OBJECT_SEQUENCE, ACL_OBJECT_TABLESPACE, ACL_OBJECT_TYPE, elog, and ERROR.

Referenced by pg_event_trigger_ddl_commands().

2200 {
2201  switch (objtype)
2202  {
2203  case ACL_OBJECT_COLUMN:
2204  return "COLUMN";
2205  case ACL_OBJECT_RELATION:
2206  return "TABLE";
2207  case ACL_OBJECT_SEQUENCE:
2208  return "SEQUENCE";
2209  case ACL_OBJECT_DATABASE:
2210  return "DATABASE";
2211  case ACL_OBJECT_DOMAIN:
2212  return "DOMAIN";
2213  case ACL_OBJECT_FDW:
2214  return "FOREIGN DATA WRAPPER";
2216  return "FOREIGN SERVER";
2217  case ACL_OBJECT_FUNCTION:
2218  return "FUNCTION";
2219  case ACL_OBJECT_LANGUAGE:
2220  return "LANGUAGE";
2222  return "LARGE OBJECT";
2223  case ACL_OBJECT_NAMESPACE:
2224  return "SCHEMA";
2225  case ACL_OBJECT_TABLESPACE:
2226  return "TABLESPACE";
2227  case ACL_OBJECT_TYPE:
2228  return "TYPE";
2229  default:
2230  elog(ERROR, "unrecognized type %d", objtype);
2231  return "???"; /* keep compiler quiet */
2232  }
2233 }
#define ERROR
Definition: elog.h:43
#define elog
Definition: elog.h:219
bool trackDroppedObjectsNeeded ( void  )

Definition at line 1279 of file event_trigger.c.

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

Referenced by deleteObjectsInList(), and EventTriggerBeginCompleteQuery().

1280 {
1281  /*
1282  * true if any sql_drop, table_rewrite, ddl_command_end event trigger
1283  * exists
1284  */
1285  return list_length(EventCacheLookup(EVT_SQLDrop)) > 0 ||
1288 }
static int list_length(const List *l)
Definition: pg_list.h:89
List * EventCacheLookup(EventTriggerEvent event)
Definition: evtcache.c:64
static void validate_ddl_tags ( const char *  filtervar,
List taglist 
)
static

Definition at line 254 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().

255 {
256  ListCell *lc;
257 
258  foreach(lc, taglist)
259  {
260  const char *tag = strVal(lfirst(lc));
262 
263  result = check_ddl_tag(tag);
265  ereport(ERROR,
266  (errcode(ERRCODE_SYNTAX_ERROR),
267  errmsg("filter value \"%s\" not recognized for filter variable \"%s\"",
268  tag, filtervar)));
270  ereport(ERROR,
271  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
272  /* translator: %s represents an SQL statement name */
273  errmsg("event triggers are not supported for %s",
274  tag)));
275  }
276 }
#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
static void validate_table_rewrite_tags ( const char *  filtervar,
List taglist 
)
static

Definition at line 329 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().

330 {
331  ListCell *lc;
332 
333  foreach(lc, taglist)
334  {
335  const char *tag = strVal(lfirst(lc));
337 
338  result = check_table_rewrite_ddl_tag(tag);
340  ereport(ERROR,
341  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
342  /* translator: %s represents an SQL statement name */
343  errmsg("event triggers are not supported for %s",
344  tag)));
345  }
346 }
#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

EventTriggerQueryState* currentEventTriggerState = NULL
static

Definition at line 72 of file event_trigger.c.

Referenced by EventTriggerBeginCompleteQuery().

event_trigger_support_data event_trigger_support[]
static

Definition at line 88 of file event_trigger.c.