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event_trigger.h File Reference
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Data Structures

struct  EventTriggerData
 

Macros

#define AT_REWRITE_ALTER_PERSISTENCE   0x01
 
#define AT_REWRITE_DEFAULT_VAL   0x02
 
#define AT_REWRITE_COLUMN_REWRITE   0x04
 
#define AT_REWRITE_ALTER_OID   0x08
 
#define CALLED_AS_EVENT_TRIGGER(fcinfo)   ((fcinfo)->context != NULL && IsA((fcinfo)->context, EventTriggerData))
 

Typedefs

typedef struct EventTriggerData EventTriggerData
 

Functions

Oid CreateEventTrigger (CreateEventTrigStmt *stmt)
 
void RemoveEventTriggerById (Oid ctrigOid)
 
Oid get_event_trigger_oid (const char *trigname, bool missing_ok)
 
Oid AlterEventTrigger (AlterEventTrigStmt *stmt)
 
ObjectAddress AlterEventTriggerOwner (const char *name, Oid newOwnerId)
 
void AlterEventTriggerOwner_oid (Oid, Oid newOwnerId)
 
bool EventTriggerSupportsObjectType (ObjectType obtype)
 
bool EventTriggerSupportsObjectClass (ObjectClass objclass)
 
bool EventTriggerSupportsGrantObjectType (GrantObjectType objtype)
 
void EventTriggerDDLCommandStart (Node *parsetree)
 
void EventTriggerDDLCommandEnd (Node *parsetree)
 
void EventTriggerSQLDrop (Node *parsetree)
 
void EventTriggerTableRewrite (Node *parsetree, Oid tableOid, int reason)
 
bool EventTriggerBeginCompleteQuery (void)
 
void EventTriggerEndCompleteQuery (void)
 
bool trackDroppedObjectsNeeded (void)
 
void EventTriggerSQLDropAddObject (const ObjectAddress *object, bool original, bool normal)
 
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)
 

Macro Definition Documentation

◆ AT_REWRITE_ALTER_OID

#define AT_REWRITE_ALTER_OID   0x08

Definition at line 34 of file event_trigger.h.

Referenced by ATExecAddColumn(), and ATExecDropColumn().

◆ AT_REWRITE_ALTER_PERSISTENCE

#define AT_REWRITE_ALTER_PERSISTENCE   0x01

Definition at line 31 of file event_trigger.h.

Referenced by ATPrepCmd().

◆ AT_REWRITE_COLUMN_REWRITE

#define AT_REWRITE_COLUMN_REWRITE   0x04

Definition at line 33 of file event_trigger.h.

Referenced by ATPrepAlterColumnType().

◆ AT_REWRITE_DEFAULT_VAL

#define AT_REWRITE_DEFAULT_VAL   0x02

Definition at line 32 of file event_trigger.h.

Referenced by ATExecAddColumn().

◆ CALLED_AS_EVENT_TRIGGER

#define CALLED_AS_EVENT_TRIGGER (   fcinfo)    ((fcinfo)->context != NULL && IsA((fcinfo)->context, EventTriggerData))

Typedef Documentation

◆ EventTriggerData

Function Documentation

◆ AlterEventTrigger()

Oid AlterEventTrigger ( AlterEventTrigStmt stmt)

Definition at line 501 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().

502 {
503  Relation tgrel;
504  HeapTuple tup;
505  Oid trigoid;
506  Form_pg_event_trigger evtForm;
507  char tgenabled = stmt->tgenabled;
508 
510 
512  CStringGetDatum(stmt->trigname));
513  if (!HeapTupleIsValid(tup))
514  ereport(ERROR,
515  (errcode(ERRCODE_UNDEFINED_OBJECT),
516  errmsg("event trigger \"%s\" does not exist",
517  stmt->trigname)));
518 
519  trigoid = HeapTupleGetOid(tup);
520 
521  if (!pg_event_trigger_ownercheck(trigoid, GetUserId()))
523  stmt->trigname);
524 
525  /* tuple is a copy, so we can modify it below */
526  evtForm = (Form_pg_event_trigger) GETSTRUCT(tup);
527  evtForm->evtenabled = tgenabled;
528 
529  CatalogTupleUpdate(tgrel, &tup->t_self, tup);
530 
532  trigoid, 0);
533 
534  /* clean up */
535  heap_freetuple(tup);
537 
538  return trigoid;
539 }
#define GETSTRUCT(TUP)
Definition: htup_details.h:661
Oid GetUserId(void)
Definition: miscinit.c:284
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:1373
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:4995
ItemPointerData t_self
Definition: htup.h:65
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3457
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:584
#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:1290
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:173
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:700

◆ AlterEventTriggerOwner()

ObjectAddress AlterEventTriggerOwner ( const char *  name,
Oid  newOwnerId 
)

Definition at line 545 of file event_trigger.c.

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

Referenced by ExecAlterOwnerStmt().

546 {
547  Oid evtOid;
548  HeapTuple tup;
549  Relation rel;
550  ObjectAddress address;
551 
553 
555 
556  if (!HeapTupleIsValid(tup))
557  ereport(ERROR,
558  (errcode(ERRCODE_UNDEFINED_OBJECT),
559  errmsg("event trigger \"%s\" does not exist", name)));
560 
561  evtOid = HeapTupleGetOid(tup);
562 
563  AlterEventTriggerOwner_internal(rel, tup, newOwnerId);
564 
565  ObjectAddressSet(address, EventTriggerRelationId, evtOid);
566 
567  heap_freetuple(tup);
568 
570 
571  return address;
572 }
int errcode(int sqlerrcode)
Definition: elog.c:575
#define heap_close(r, l)
Definition: heapam.h:97
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1373
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:584
#define ereport(elevel, rest)
Definition: elog.h:122
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1290
#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:173
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define HeapTupleGetOid(tuple)
Definition: htup_details.h:700

◆ AlterEventTriggerOwner_oid()

void AlterEventTriggerOwner_oid ( Oid  ,
Oid  newOwnerId 
)

Definition at line 578 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().

579 {
580  HeapTuple tup;
581  Relation rel;
582 
584 
586 
587  if (!HeapTupleIsValid(tup))
588  ereport(ERROR,
589  (errcode(ERRCODE_UNDEFINED_OBJECT),
590  errmsg("event trigger with OID %u does not exist", trigOid)));
591 
592  AlterEventTriggerOwner_internal(rel, tup, newOwnerId);
593 
594  heap_freetuple(tup);
595 
597 }
int errcode(int sqlerrcode)
Definition: elog.c:575
#define heap_close(r, l)
Definition: heapam.h:97
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1373
static void AlterEventTriggerOwner_internal(Relation rel, HeapTuple tup, Oid newOwnerId)
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#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:1290
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define EventTriggerRelationId
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:173
int errmsg(const char *fmt,...)
Definition: elog.c:797

◆ CreateEventTrigger()

Oid CreateEventTrigger ( CreateEventTrigStmt stmt)

Definition at line 169 of file event_trigger.c.

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

Referenced by standard_ProcessUtility().

170 {
171  HeapTuple tuple;
172  Oid funcoid;
173  Oid funcrettype;
174  Oid fargtypes[1]; /* dummy */
175  Oid evtowner = GetUserId();
176  ListCell *lc;
177  List *tags = NULL;
178 
179  /*
180  * It would be nice to allow database owners or even regular users to do
181  * this, but there are obvious privilege escalation risks which would have
182  * to somehow be plugged first.
183  */
184  if (!superuser())
185  ereport(ERROR,
186  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
187  errmsg("permission denied to create event trigger \"%s\"",
188  stmt->trigname),
189  errhint("Must be superuser to create an event trigger.")));
190 
191  /* Validate event name. */
192  if (strcmp(stmt->eventname, "ddl_command_start") != 0 &&
193  strcmp(stmt->eventname, "ddl_command_end") != 0 &&
194  strcmp(stmt->eventname, "sql_drop") != 0 &&
195  strcmp(stmt->eventname, "table_rewrite") != 0)
196  ereport(ERROR,
197  (errcode(ERRCODE_SYNTAX_ERROR),
198  errmsg("unrecognized event name \"%s\"",
199  stmt->eventname)));
200 
201  /* Validate filter conditions. */
202  foreach(lc, stmt->whenclause)
203  {
204  DefElem *def = (DefElem *) lfirst(lc);
205 
206  if (strcmp(def->defname, "tag") == 0)
207  {
208  if (tags != NULL)
210  tags = (List *) def->arg;
211  }
212  else
213  ereport(ERROR,
214  (errcode(ERRCODE_SYNTAX_ERROR),
215  errmsg("unrecognized filter variable \"%s\"", def->defname)));
216  }
217 
218  /* Validate tag list, if any. */
219  if ((strcmp(stmt->eventname, "ddl_command_start") == 0 ||
220  strcmp(stmt->eventname, "ddl_command_end") == 0 ||
221  strcmp(stmt->eventname, "sql_drop") == 0)
222  && tags != NULL)
223  validate_ddl_tags("tag", tags);
224  else if (strcmp(stmt->eventname, "table_rewrite") == 0
225  && tags != NULL)
226  validate_table_rewrite_tags("tag", tags);
227 
228  /*
229  * Give user a nice error message if an event trigger of the same name
230  * already exists.
231  */
233  if (HeapTupleIsValid(tuple))
234  ereport(ERROR,
236  errmsg("event trigger \"%s\" already exists",
237  stmt->trigname)));
238 
239  /* Find and validate the trigger function. */
240  funcoid = LookupFuncName(stmt->funcname, 0, fargtypes, false);
241  funcrettype = get_func_rettype(funcoid);
242  if (funcrettype != EVTTRIGGEROID)
243  ereport(ERROR,
244  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
245  errmsg("function %s must return type %s",
246  NameListToString(stmt->funcname), "event_trigger")));
247 
248  /* Insert catalog entries. */
249  return insert_event_trigger_tuple(stmt->trigname, stmt->eventname,
250  evtowner, funcoid, tags);
251 }
static void validate_ddl_tags(const char *filtervar, List *taglist)
int errhint(const char *fmt,...)
Definition: elog.c:987
Oid GetUserId(void)
Definition: miscinit.c:284
int errcode(int sqlerrcode)
Definition: elog.c:575
bool superuser(void)
Definition: superuser.c:47
unsigned int Oid
Definition: postgres_ext.h:31
Oid get_func_rettype(Oid funcid)
Definition: lsyscache.c:1459
#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:584
#define ereport(elevel, rest)
Definition: elog.h:122
Node * arg
Definition: parsenodes.h:720
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1112
char * NameListToString(List *names)
Definition: namespace.c:3063
static Oid insert_event_trigger_tuple(const char *trigname, const char *eventname, Oid evtOwner, Oid funcoid, List *tags)
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define EVTTRIGGEROID
Definition: pg_type.h:694
#define lfirst(lc)
Definition: pg_list.h:106
Oid LookupFuncName(List *funcname, int nargs, const Oid *argtypes, bool noError)
Definition: parse_func.c:1961
int errmsg(const char *fmt,...)
Definition: elog.c:797
char * defname
Definition: parsenodes.h:719
#define ERRCODE_DUPLICATE_OBJECT
Definition: streamutil.c:30
Definition: pg_list.h:45

◆ EventTriggerAlterTableEnd()

void EventTriggerAlterTableEnd ( void  )

Definition at line 1804 of file event_trigger.c.

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

Referenced by AlterTableMoveAll(), and ProcessUtilitySlow().

1805 {
1806  /* ignore if event trigger context not set, or collection disabled */
1807  if (!currentEventTriggerState ||
1809  return;
1810 
1811  /* If no subcommands, don't collect */
1813  {
1817  }
1818  else
1820 
1822 }
union CollectedCommand::@111 d
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
void pfree(void *pointer)
Definition: mcxt.c:936
CollectedCommand * currentCommand
Definition: event_trigger.c:66
List * lappend(List *list, void *datum)
Definition: list.c:128
static int list_length(const List *l)
Definition: pg_list.h:89
struct CollectedCommand::@111::@113 alterTable

◆ EventTriggerAlterTableRelid()

void EventTriggerAlterTableRelid ( Oid  objectId)

Definition at line 1752 of file event_trigger.c.

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

Referenced by AlterTableInternal(), and ProcessUtilitySlow().

1753 {
1754  if (!currentEventTriggerState ||
1756  return;
1757 
1758  currentEventTriggerState->currentCommand->d.alterTable.objectId = objectId;
1759 }
union CollectedCommand::@111 d
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
CollectedCommand * currentCommand
Definition: event_trigger.c:66
struct CollectedCommand::@111::@113 alterTable

◆ EventTriggerAlterTableStart()

void EventTriggerAlterTableStart ( Node parsetree)

Definition at line 1719 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().

1720 {
1721  MemoryContext oldcxt;
1722  CollectedCommand *command;
1723 
1724  /* ignore if event trigger context not set, or collection disabled */
1725  if (!currentEventTriggerState ||
1727  return;
1728 
1730 
1731  command = palloc(sizeof(CollectedCommand));
1732 
1733  command->type = SCT_AlterTable;
1734  command->in_extension = creating_extension;
1735 
1736  command->d.alterTable.classId = RelationRelationId;
1737  command->d.alterTable.objectId = InvalidOid;
1738  command->d.alterTable.subcmds = NIL;
1739  command->parsetree = copyObject(parsetree);
1740 
1742 
1743  MemoryContextSwitchTo(oldcxt);
1744 }
#define NIL
Definition: pg_list.h:69
union CollectedCommand::@111 d
#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
CollectedCommand * currentCommand
Definition: event_trigger.c:66
#define InvalidOid
Definition: postgres_ext.h:36
bool creating_extension
Definition: extension.c:67
struct CollectedCommand::@111::@113 alterTable
void * palloc(Size size)
Definition: mcxt.c:835
#define copyObject(obj)
Definition: nodes.h:625

◆ EventTriggerBeginCompleteQuery()

bool EventTriggerBeginCompleteQuery ( void  )

Definition at line 1244 of file event_trigger.c.

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

Referenced by ProcessUtilitySlow().

1245 {
1247  MemoryContext cxt;
1248 
1249  /*
1250  * Currently, sql_drop, table_rewrite, ddl_command_end events are the only
1251  * reason to have event trigger state at all; so if there are none, don't
1252  * install one.
1253  */
1255  return false;
1256 
1258  "event trigger state",
1260  state = MemoryContextAlloc(cxt, sizeof(EventTriggerQueryState));
1261  state->cxt = cxt;
1262  slist_init(&(state->SQLDropList));
1263  state->in_sql_drop = false;
1264  state->table_rewrite_oid = InvalidOid;
1265 
1268  state->currentCommand = NULL;
1269  state->commandList = NIL;
1271  currentEventTriggerState = state;
1272 
1273  return true;
1274 }
#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:197
CollectedCommand * currentCommand
Definition: event_trigger.c:66
struct EventTriggerQueryState * previous
Definition: event_trigger.c:69
MemoryContext TopMemoryContext
Definition: mcxt.c:43
#define AllocSetContextCreate(parent, name, allocparams)
Definition: memutils.h:165
#define InvalidOid
Definition: postgres_ext.h:36
Definition: regguts.h:298
void * MemoryContextAlloc(MemoryContext context, Size size)
Definition: mcxt.c:693

◆ EventTriggerCollectAlterDefPrivs()

void EventTriggerCollectAlterDefPrivs ( AlterDefaultPrivilegesStmt stmt)

Definition at line 1978 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().

1979 {
1980  MemoryContext oldcxt;
1981  CollectedCommand *command;
1982 
1983  /* ignore if event trigger context not set, or collection disabled */
1984  if (!currentEventTriggerState ||
1986  return;
1987 
1989 
1990  command = palloc0(sizeof(CollectedCommand));
1991  command->type = SCT_AlterDefaultPrivileges;
1992  command->d.defprivs.objtype = stmt->action->objtype;
1993  command->in_extension = creating_extension;
1994  command->parsetree = (Node *) copyObject(stmt);
1995 
1998  MemoryContextSwitchTo(oldcxt);
1999 }
union CollectedCommand::@111 d
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:512
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
struct CollectedCommand::@111::@118 defprivs
List * lappend(List *list, void *datum)
Definition: list.c:128
void * palloc0(Size size)
Definition: mcxt.c:864
bool creating_extension
Definition: extension.c:67
GrantObjectType objtype
Definition: parsenodes.h:1872
#define copyObject(obj)
Definition: nodes.h:625

◆ EventTriggerCollectAlterOpFam()

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

Definition at line 1876 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().

1878 {
1879  MemoryContext oldcxt;
1880  CollectedCommand *command;
1881 
1882  /* ignore if event trigger context not set, or collection disabled */
1883  if (!currentEventTriggerState ||
1885  return;
1886 
1888 
1889  command = palloc(sizeof(CollectedCommand));
1890  command->type = SCT_AlterOpFamily;
1891  command->in_extension = creating_extension;
1892  ObjectAddressSet(command->d.opfam.address,
1893  OperatorFamilyRelationId, opfamoid);
1894  command->d.opfam.operators = operators;
1895  command->d.opfam.procedures = procedures;
1896  command->parsetree = (Node *) copyObject(stmt);
1897 
1900 
1901  MemoryContextSwitchTo(oldcxt);
1902 }
union CollectedCommand::@111 d
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:512
#define OperatorFamilyRelationId
Definition: pg_opfamily.h:29
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
List * lappend(List *list, void *datum)
Definition: list.c:128
bool creating_extension
Definition: extension.c:67
struct CollectedCommand::@111::@115 opfam
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
void * palloc(Size size)
Definition: mcxt.c:835
#define copyObject(obj)
Definition: nodes.h:625

◆ EventTriggerCollectAlterTableSubcmd()

void EventTriggerCollectAlterTableSubcmd ( Node subcmd,
ObjectAddress  address 
)

Definition at line 1770 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().

1771 {
1772  MemoryContext oldcxt;
1774 
1775  /* ignore if event trigger context not set, or collection disabled */
1776  if (!currentEventTriggerState ||
1778  return;
1779 
1780  Assert(IsA(subcmd, AlterTableCmd));
1782 
1784 
1785  newsub = palloc(sizeof(CollectedATSubcmd));
1786  newsub->address = address;
1787  newsub->parsetree = copyObject(subcmd);
1788 
1791 
1792  MemoryContextSwitchTo(oldcxt);
1793 }
union CollectedCommand::@111 d
#define IsA(nodeptr, _type_)
Definition: nodes.h:563
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
#define OidIsValid(objectId)
Definition: c.h:586
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
CollectedCommand * currentCommand
Definition: event_trigger.c:66
List * lappend(List *list, void *datum)
Definition: list.c:128
#define Assert(condition)
Definition: c.h:680
struct CollectedCommand::@111::@113 alterTable
void * palloc(Size size)
Definition: mcxt.c:835
#define copyObject(obj)
Definition: nodes.h:625
static color newsub(struct colormap *cm, color co)
Definition: regc_color.c:389
ObjectAddress address

◆ EventTriggerCollectAlterTSConfig()

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

Definition at line 1943 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().

1945 {
1946  MemoryContext oldcxt;
1947  CollectedCommand *command;
1948 
1949  /* ignore if event trigger context not set, or collection disabled */
1950  if (!currentEventTriggerState ||
1952  return;
1953 
1955 
1956  command = palloc0(sizeof(CollectedCommand));
1957  command->type = SCT_AlterTSConfig;
1958  command->in_extension = creating_extension;
1959  ObjectAddressSet(command->d.atscfg.address,
1960  TSConfigRelationId, cfgId);
1961  command->d.atscfg.dictIds = palloc(sizeof(Oid) * ndicts);
1962  memcpy(command->d.atscfg.dictIds, dictIds, sizeof(Oid) * ndicts);
1963  command->d.atscfg.ndicts = ndicts;
1964  command->parsetree = (Node *) copyObject(stmt);
1965 
1968 
1969  MemoryContextSwitchTo(oldcxt);
1970 }
union CollectedCommand::@111 d
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:512
CollectedCommandType type
unsigned int Oid
Definition: postgres_ext.h:31
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
#define TSConfigRelationId
Definition: pg_ts_config.h:31
struct CollectedCommand::@111::@117 atscfg
List * lappend(List *list, void *datum)
Definition: list.c:128
void * palloc0(Size size)
Definition: mcxt.c:864
bool creating_extension
Definition: extension.c:67
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
void * palloc(Size size)
Definition: mcxt.c:835
#define copyObject(obj)
Definition: nodes.h:625

◆ EventTriggerCollectCreateOpClass()

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

Definition at line 1909 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().

1911 {
1912  MemoryContext oldcxt;
1913  CollectedCommand *command;
1914 
1915  /* ignore if event trigger context not set, or collection disabled */
1916  if (!currentEventTriggerState ||
1918  return;
1919 
1921 
1922  command = palloc0(sizeof(CollectedCommand));
1923  command->type = SCT_CreateOpClass;
1924  command->in_extension = creating_extension;
1925  ObjectAddressSet(command->d.createopc.address,
1926  OperatorClassRelationId, opcoid);
1927  command->d.createopc.operators = operators;
1928  command->d.createopc.procedures = procedures;
1929  command->parsetree = (Node *) copyObject(stmt);
1930 
1933 
1934  MemoryContextSwitchTo(oldcxt);
1935 }
union CollectedCommand::@111 d
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
#define OperatorClassRelationId
Definition: pg_opclass.h:49
Definition: nodes.h:512
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
struct CollectedCommand::@111::@116 createopc
List * lappend(List *list, void *datum)
Definition: list.c:128
void * palloc0(Size size)
Definition: mcxt.c:864
bool creating_extension
Definition: extension.c:67
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define copyObject(obj)
Definition: nodes.h:625

◆ EventTriggerCollectGrant()

void EventTriggerCollectGrant ( InternalGrant istmt)

Definition at line 1832 of file event_trigger.c.

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

Referenced by ExecGrantStmt_oids().

1833 {
1834  MemoryContext oldcxt;
1835  CollectedCommand *command;
1836  InternalGrant *icopy;
1837  ListCell *cell;
1838 
1839  /* ignore if event trigger context not set, or collection disabled */
1840  if (!currentEventTriggerState ||
1842  return;
1843 
1845 
1846  /*
1847  * This is tedious, but necessary.
1848  */
1849  icopy = palloc(sizeof(InternalGrant));
1850  memcpy(icopy, istmt, sizeof(InternalGrant));
1851  icopy->objects = list_copy(istmt->objects);
1852  icopy->grantees = list_copy(istmt->grantees);
1853  icopy->col_privs = NIL;
1854  foreach(cell, istmt->col_privs)
1855  icopy->col_privs = lappend(icopy->col_privs, copyObject(lfirst(cell)));
1856 
1857  /* Now collect it, using the copied InternalGrant */
1858  command = palloc(sizeof(CollectedCommand));
1859  command->type = SCT_Grant;
1860  command->in_extension = creating_extension;
1861  command->d.grant.istmt = icopy;
1862  command->parsetree = NULL;
1863 
1866 
1867  MemoryContextSwitchTo(oldcxt);
1868 }
#define NIL
Definition: pg_list.h:69
union CollectedCommand::@111 d
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
List * list_copy(const List *oldlist)
Definition: list.c:1160
struct CollectedCommand::@111::@114 grant
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
List * lappend(List *list, void *datum)
Definition: list.c:128
bool creating_extension
Definition: extension.c:67
#define lfirst(lc)
Definition: pg_list.h:106
void * palloc(Size size)
Definition: mcxt.c:835
#define copyObject(obj)
Definition: nodes.h:625

◆ EventTriggerCollectSimpleCommand()

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

Definition at line 1676 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().

1679 {
1680  MemoryContext oldcxt;
1681  CollectedCommand *command;
1682 
1683  /* ignore if event trigger context not set, or collection disabled */
1684  if (!currentEventTriggerState ||
1686  return;
1687 
1689 
1690  command = palloc(sizeof(CollectedCommand));
1691 
1692  command->type = SCT_Simple;
1693  command->in_extension = creating_extension;
1694 
1695  command->d.simple.address = address;
1696  command->d.simple.secondaryObject = secondaryObject;
1697  command->parsetree = copyObject(parsetree);
1698 
1700  command);
1701 
1702  MemoryContextSwitchTo(oldcxt);
1703 }
union CollectedCommand::@111 d
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
struct CollectedCommand::@111::@112 simple
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
List * lappend(List *list, void *datum)
Definition: list.c:128
bool creating_extension
Definition: extension.c:67
void * palloc(Size size)
Definition: mcxt.c:835
#define copyObject(obj)
Definition: nodes.h:625

◆ EventTriggerDDLCommandEnd()

void EventTriggerDDLCommandEnd ( Node parsetree)

Definition at line 827 of file event_trigger.c.

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

Referenced by ProcessUtilitySlow().

828 {
829  List *runlist;
830  EventTriggerData trigdata;
831 
832  /*
833  * See EventTriggerDDLCommandStart for a discussion about why event
834  * triggers are disabled in single user mode.
835  */
836  if (!IsUnderPostmaster)
837  return;
838 
839  runlist = EventTriggerCommonSetup(parsetree,
840  EVT_DDLCommandEnd, "ddl_command_end",
841  &trigdata);
842  if (runlist == NIL)
843  return;
844 
845  /*
846  * Make sure anything the main command did will be visible to the event
847  * triggers.
848  */
850 
851  /* Run the triggers. */
852  EventTriggerInvoke(runlist, &trigdata);
853 
854  /* Cleanup. */
855  list_free(runlist);
856 }
#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:101
void CommandCounterIncrement(void)
Definition: xact.c:915
void list_free(List *list)
Definition: list.c:1133
Definition: pg_list.h:45

◆ EventTriggerDDLCommandStart()

void EventTriggerDDLCommandStart ( Node parsetree)

Definition at line 779 of file event_trigger.c.

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

Referenced by ProcessUtilitySlow().

780 {
781  List *runlist;
782  EventTriggerData trigdata;
783 
784  /*
785  * Event Triggers are completely disabled in standalone mode. There are
786  * (at least) two reasons for this:
787  *
788  * 1. A sufficiently broken event trigger might not only render the
789  * database unusable, but prevent disabling itself to fix the situation.
790  * In this scenario, restarting in standalone mode provides an escape
791  * hatch.
792  *
793  * 2. BuildEventTriggerCache relies on systable_beginscan_ordered, and
794  * therefore will malfunction if pg_event_trigger's indexes are damaged.
795  * To allow recovery from a damaged index, we need some operating mode
796  * wherein event triggers are disabled. (Or we could implement
797  * heapscan-and-sort logic for that case, but having disaster recovery
798  * scenarios depend on code that's otherwise untested isn't appetizing.)
799  */
800  if (!IsUnderPostmaster)
801  return;
802 
803  runlist = EventTriggerCommonSetup(parsetree,
805  "ddl_command_start",
806  &trigdata);
807  if (runlist == NIL)
808  return;
809 
810  /* Run the triggers. */
811  EventTriggerInvoke(runlist, &trigdata);
812 
813  /* Cleanup. */
814  list_free(runlist);
815 
816  /*
817  * Make sure anything the event triggers did will be visible to the main
818  * command.
819  */
821 }
#define NIL
Definition: pg_list.h:69
static void EventTriggerInvoke(List *fn_oid_list, EventTriggerData *trigdata)
static List * EventTriggerCommonSetup(Node *parsetree, EventTriggerEvent event, const char *eventstr, EventTriggerData *trigdata)
bool IsUnderPostmaster
Definition: globals.c:101
void CommandCounterIncrement(void)
Definition: xact.c:915
void list_free(List *list)
Definition: list.c:1133
Definition: pg_list.h:45

◆ EventTriggerEndCompleteQuery()

void EventTriggerEndCompleteQuery ( void  )

Definition at line 1288 of file event_trigger.c.

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

Referenced by ProcessUtilitySlow().

1289 {
1290  EventTriggerQueryState *prevstate;
1291 
1292  prevstate = currentEventTriggerState->previous;
1293 
1294  /* this avoids the need for retail pfree of SQLDropList items: */
1296 
1297  currentEventTriggerState = prevstate;
1298 }
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:198
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
struct EventTriggerQueryState * previous
Definition: event_trigger.c:69

◆ EventTriggerInhibitCommandCollection()

void EventTriggerInhibitCommandCollection ( void  )

Definition at line 1642 of file event_trigger.c.

References EventTriggerQueryState::commandCollectionInhibited.

Referenced by ProcessUtilitySlow().

1643 {
1645  return;
1646 
1648 }
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72

◆ EventTriggerSQLDrop()

void EventTriggerSQLDrop ( Node parsetree)

Definition at line 862 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().

863 {
864  List *runlist;
865  EventTriggerData trigdata;
866 
867  /*
868  * See EventTriggerDDLCommandStart for a discussion about why event
869  * triggers are disabled in single user mode.
870  */
871  if (!IsUnderPostmaster)
872  return;
873 
874  /*
875  * Use current state to determine whether this event fires at all. If
876  * there are no triggers for the sql_drop event, then we don't have
877  * anything to do here. Note that dropped object collection is disabled
878  * if this is the case, so even if we were to try to run, the list would
879  * be empty.
880  */
883  return;
884 
885  runlist = EventTriggerCommonSetup(parsetree,
886  EVT_SQLDrop, "sql_drop",
887  &trigdata);
888 
889  /*
890  * Nothing to do if run list is empty. Note this shouldn't happen,
891  * because if there are no sql_drop events, then objects-to-drop wouldn't
892  * have been collected in the first place and we would have quit above.
893  */
894  if (runlist == NIL)
895  return;
896 
897  /*
898  * Make sure anything the main command did will be visible to the event
899  * triggers.
900  */
902 
903  /*
904  * Make sure pg_event_trigger_dropped_objects only works when running
905  * these triggers. Use PG_TRY to ensure in_sql_drop is reset even when
906  * one trigger fails. (This is perhaps not necessary, as the currentState
907  * variable will be removed shortly by our caller, but it seems better to
908  * play safe.)
909  */
911 
912  /* Run the triggers. */
913  PG_TRY();
914  {
915  EventTriggerInvoke(runlist, &trigdata);
916  }
917  PG_CATCH();
918  {
920  PG_RE_THROW();
921  }
922  PG_END_TRY();
924 
925  /* Cleanup. */
926  list_free(runlist);
927 }
#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:101
static bool slist_is_empty(slist_head *head)
Definition: ilist.h:563
void CommandCounterIncrement(void)
Definition: xact.c:915
#define PG_CATCH()
Definition: elog.h:293
#define PG_RE_THROW()
Definition: elog.h:314
void list_free(List *list)
Definition: list.c:1133
#define PG_TRY()
Definition: elog.h:284
Definition: pg_list.h:45
#define PG_END_TRY()
Definition: elog.h:300

◆ EventTriggerSQLDropAddObject()

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

Definition at line 1338 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().

1339 {
1340  SQLDropObject *obj;
1341  MemoryContext oldcxt;
1342 
1344  return;
1345 
1347 
1348  /* don't report temp schemas except my own */
1349  if (object->classId == NamespaceRelationId &&
1350  (isAnyTempNamespace(object->objectId) &&
1351  !isTempNamespace(object->objectId)))
1352  return;
1353 
1355 
1356  obj = palloc0(sizeof(SQLDropObject));
1357  obj->address = *object;
1358  obj->original = original;
1359  obj->normal = normal;
1360 
1361  /*
1362  * Obtain schema names from the object's catalog tuple, if one exists;
1363  * this lets us skip objects in temp schemas. We trust that
1364  * ObjectProperty contains all object classes that can be
1365  * schema-qualified.
1366  */
1367  if (is_objectclass_supported(object->classId))
1368  {
1369  Relation catalog;
1370  HeapTuple tuple;
1371 
1372  catalog = heap_open(obj->address.classId, AccessShareLock);
1373  tuple = get_catalog_object_by_oid(catalog, obj->address.objectId);
1374 
1375  if (tuple)
1376  {
1377  AttrNumber attnum;
1378  Datum datum;
1379  bool isnull;
1380 
1382  if (attnum != InvalidAttrNumber)
1383  {
1384  datum = heap_getattr(tuple, attnum,
1385  RelationGetDescr(catalog), &isnull);
1386  if (!isnull)
1387  {
1388  Oid namespaceId;
1389 
1390  namespaceId = DatumGetObjectId(datum);
1391  /* temp objects are only reported if they are my own */
1392  if (isTempNamespace(namespaceId))
1393  {
1394  obj->schemaname = "pg_temp";
1395  obj->istemp = true;
1396  }
1397  else if (isAnyTempNamespace(namespaceId))
1398  {
1399  pfree(obj);
1400  heap_close(catalog, AccessShareLock);
1401  MemoryContextSwitchTo(oldcxt);
1402  return;
1403  }
1404  else
1405  {
1406  obj->schemaname = get_namespace_name(namespaceId);
1407  obj->istemp = false;
1408  }
1409  }
1410  }
1411 
1413  obj->address.objectSubId == 0)
1414  {
1415  attnum = get_object_attnum_name(obj->address.classId);
1416  if (attnum != InvalidAttrNumber)
1417  {
1418  datum = heap_getattr(tuple, attnum,
1419  RelationGetDescr(catalog), &isnull);
1420  if (!isnull)
1421  obj->objname = pstrdup(NameStr(*DatumGetName(datum)));
1422  }
1423  }
1424  }
1425 
1426  heap_close(catalog, AccessShareLock);
1427  }
1428  else
1429  {
1430  if (object->classId == NamespaceRelationId &&
1431  isTempNamespace(object->objectId))
1432  obj->istemp = true;
1433  }
1434 
1435  /* object identity, objname and objargs */
1436  obj->objidentity =
1437  getObjectIdentityParts(&obj->address, &obj->addrnames, &obj->addrargs);
1438 
1439  /* object type */
1441 
1443 
1444  MemoryContextSwitchTo(oldcxt);
1445 }
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:437
const char * objname
#define DatumGetObjectId(X)
Definition: postgres.h:506
char * pstrdup(const char *in)
Definition: mcxt.c:1063
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:2391
const char * objecttype
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72
#define DatumGetName(X)
Definition: postgres.h:591
void pfree(void *pointer)
Definition: mcxt.c:936
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3066
bool isTempNamespace(Oid namespaceId)
Definition: namespace.c:3118
bool EventTriggerSupportsObjectClass(ObjectClass objclass)
const char * schemaname
#define heap_getattr(tup, attnum, tupleDesc, isnull)
Definition: htup_details.h:774
AttrNumber get_object_attnum_name(Oid class_id)
void * palloc0(Size size)
Definition: mcxt.c:864
uintptr_t Datum
Definition: postgres.h:372
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1290
#define Assert(condition)
Definition: c.h:680
HeapTuple get_catalog_object_by_oid(Relation catalog, Oid objectId)
#define InvalidAttrNumber
Definition: attnum.h:23
#define NameStr(name)
Definition: c.h:557
bool isAnyTempNamespace(Oid namespaceId)
Definition: namespace.c:3156
bool is_objectclass_supported(Oid class_id)
int16 AttrNumber
Definition: attnum.h:21

◆ EventTriggerSupportsGrantObjectType()

bool EventTriggerSupportsGrantObjectType ( GrantObjectType  objtype)

Definition at line 1203 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_PROCEDURE, ACL_OBJECT_RELATION, ACL_OBJECT_ROUTINE, ACL_OBJECT_SEQUENCE, ACL_OBJECT_TABLESPACE, and ACL_OBJECT_TYPE.

Referenced by ExecGrantStmt_oids(), and standard_ProcessUtility().

1204 {
1205  switch (objtype)
1206  {
1207  case ACL_OBJECT_DATABASE:
1208  case ACL_OBJECT_TABLESPACE:
1209  /* no support for global objects */
1210  return false;
1211 
1212  case ACL_OBJECT_COLUMN:
1213  case ACL_OBJECT_RELATION:
1214  case ACL_OBJECT_SEQUENCE:
1215  case ACL_OBJECT_DOMAIN:
1216  case ACL_OBJECT_FDW:
1218  case ACL_OBJECT_FUNCTION:
1219  case ACL_OBJECT_LANGUAGE:
1221  case ACL_OBJECT_NAMESPACE:
1222  case ACL_OBJECT_PROCEDURE:
1223  case ACL_OBJECT_ROUTINE:
1224  case ACL_OBJECT_TYPE:
1225  return true;
1226 
1227  /*
1228  * There's intentionally no default: case here; we want the
1229  * compiler to warn if a new ACL class hasn't been handled above.
1230  */
1231  }
1232 
1233  /* Shouldn't get here, but if we do, say "no support" */
1234  return false;
1235 }

◆ EventTriggerSupportsObjectClass()

bool EventTriggerSupportsObjectClass ( ObjectClass  objclass)

Definition at line 1144 of file event_trigger.c.

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

Referenced by deleteObjectsInList(), and EventTriggerSQLDropAddObject().

1145 {
1146  switch (objclass)
1147  {
1148  case OCLASS_DATABASE:
1149  case OCLASS_TBLSPACE:
1150  case OCLASS_ROLE:
1151  /* no support for global objects */
1152  return false;
1153  case OCLASS_EVENT_TRIGGER:
1154  /* no support for event triggers on event triggers */
1155  return false;
1156  case OCLASS_CLASS:
1157  case OCLASS_PROC:
1158  case OCLASS_TYPE:
1159  case OCLASS_CAST:
1160  case OCLASS_COLLATION:
1161  case OCLASS_CONSTRAINT:
1162  case OCLASS_CONVERSION:
1163  case OCLASS_DEFAULT:
1164  case OCLASS_LANGUAGE:
1165  case OCLASS_LARGEOBJECT:
1166  case OCLASS_OPERATOR:
1167  case OCLASS_OPCLASS:
1168  case OCLASS_OPFAMILY:
1169  case OCLASS_AM:
1170  case OCLASS_AMOP:
1171  case OCLASS_AMPROC:
1172  case OCLASS_REWRITE:
1173  case OCLASS_TRIGGER:
1174  case OCLASS_SCHEMA:
1175  case OCLASS_STATISTIC_EXT:
1176  case OCLASS_TSPARSER:
1177  case OCLASS_TSDICT:
1178  case OCLASS_TSTEMPLATE:
1179  case OCLASS_TSCONFIG:
1180  case OCLASS_FDW:
1181  case OCLASS_FOREIGN_SERVER:
1182  case OCLASS_USER_MAPPING:
1183  case OCLASS_DEFACL:
1184  case OCLASS_EXTENSION:
1185  case OCLASS_POLICY:
1186  case OCLASS_PUBLICATION:
1188  case OCLASS_SUBSCRIPTION:
1189  case OCLASS_TRANSFORM:
1190  return true;
1191 
1192  /*
1193  * There's intentionally no default: case here; we want the
1194  * compiler to warn if a new OCLASS hasn't been handled above.
1195  */
1196  }
1197 
1198  /* Shouldn't get here, but if we do, say "no support" */
1199  return false;
1200 }

◆ EventTriggerSupportsObjectType()

bool EventTriggerSupportsObjectType ( ObjectType  obtype)

Definition at line 1070 of file event_trigger.c.

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

Referenced by standard_ProcessUtility().

1071 {
1072  switch (obtype)
1073  {
1074  case OBJECT_DATABASE:
1075  case OBJECT_TABLESPACE:
1076  case OBJECT_ROLE:
1077  /* no support for global objects */
1078  return false;
1079  case OBJECT_EVENT_TRIGGER:
1080  /* no support for event triggers on event triggers */
1081  return false;
1082  case OBJECT_ACCESS_METHOD:
1083  case OBJECT_AGGREGATE:
1084  case OBJECT_AMOP:
1085  case OBJECT_AMPROC:
1086  case OBJECT_ATTRIBUTE:
1087  case OBJECT_CAST:
1088  case OBJECT_COLUMN:
1089  case OBJECT_COLLATION:
1090  case OBJECT_CONVERSION:
1091  case OBJECT_DEFACL:
1092  case OBJECT_DEFAULT:
1093  case OBJECT_DOMAIN:
1094  case OBJECT_DOMCONSTRAINT:
1095  case OBJECT_EXTENSION:
1096  case OBJECT_FDW:
1097  case OBJECT_FOREIGN_SERVER:
1098  case OBJECT_FOREIGN_TABLE:
1099  case OBJECT_FUNCTION:
1100  case OBJECT_INDEX:
1101  case OBJECT_LANGUAGE:
1102  case OBJECT_LARGEOBJECT:
1103  case OBJECT_MATVIEW:
1104  case OBJECT_OPCLASS:
1105  case OBJECT_OPERATOR:
1106  case OBJECT_OPFAMILY:
1107  case OBJECT_POLICY:
1108  case OBJECT_PROCEDURE:
1109  case OBJECT_PUBLICATION:
1111  case OBJECT_ROUTINE:
1112  case OBJECT_RULE:
1113  case OBJECT_SCHEMA:
1114  case OBJECT_SEQUENCE:
1115  case OBJECT_SUBSCRIPTION:
1116  case OBJECT_STATISTIC_EXT:
1117  case OBJECT_TABCONSTRAINT:
1118  case OBJECT_TABLE:
1119  case OBJECT_TRANSFORM:
1120  case OBJECT_TRIGGER:
1122  case OBJECT_TSDICTIONARY:
1123  case OBJECT_TSPARSER:
1124  case OBJECT_TSTEMPLATE:
1125  case OBJECT_TYPE:
1126  case OBJECT_USER_MAPPING:
1127  case OBJECT_VIEW:
1128  return true;
1129 
1130  /*
1131  * There's intentionally no default: case here; we want the
1132  * compiler to warn if a new ObjectType hasn't been handled above.
1133  */
1134  }
1135 
1136  /* Shouldn't get here, but if we do, say "no support" */
1137  return false;
1138 }

◆ EventTriggerTableRewrite()

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

Definition at line 934 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().

935 {
936  List *runlist;
937  EventTriggerData trigdata;
938 
939  elog(DEBUG1, "EventTriggerTableRewrite(%u)", tableOid);
940 
941  /*
942  * Event Triggers are completely disabled in standalone mode. There are
943  * (at least) two reasons for this:
944  *
945  * 1. A sufficiently broken event trigger might not only render the
946  * database unusable, but prevent disabling itself to fix the situation.
947  * In this scenario, restarting in standalone mode provides an escape
948  * hatch.
949  *
950  * 2. BuildEventTriggerCache relies on systable_beginscan_ordered, and
951  * therefore will malfunction if pg_event_trigger's indexes are damaged.
952  * To allow recovery from a damaged index, we need some operating mode
953  * wherein event triggers are disabled. (Or we could implement
954  * heapscan-and-sort logic for that case, but having disaster recovery
955  * scenarios depend on code that's otherwise untested isn't appetizing.)
956  */
957  if (!IsUnderPostmaster)
958  return;
959 
960  runlist = EventTriggerCommonSetup(parsetree,
962  "table_rewrite",
963  &trigdata);
964  if (runlist == NIL)
965  return;
966 
967  /*
968  * Make sure pg_event_trigger_table_rewrite_oid only works when running
969  * these triggers. Use PG_TRY to ensure table_rewrite_oid is reset even
970  * when one trigger fails. (This is perhaps not necessary, as the
971  * currentState variable will be removed shortly by our caller, but it
972  * seems better to play safe.)
973  */
976 
977  /* Run the triggers. */
978  PG_TRY();
979  {
980  EventTriggerInvoke(runlist, &trigdata);
981  }
982  PG_CATCH();
983  {
986  PG_RE_THROW();
987  }
988  PG_END_TRY();
989 
992 
993  /* Cleanup. */
994  list_free(runlist);
995 
996  /*
997  * Make sure anything the event triggers did will be visible to the main
998  * command.
999  */
1001 }
#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:101
void CommandCounterIncrement(void)
Definition: xact.c:915
#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

◆ EventTriggerUndoInhibitCommandCollection()

void EventTriggerUndoInhibitCommandCollection ( void  )

Definition at line 1654 of file event_trigger.c.

References EventTriggerQueryState::commandCollectionInhibited.

Referenced by ProcessUtilitySlow().

1655 {
1657  return;
1658 
1660 }
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:72

◆ get_event_trigger_oid()

Oid get_event_trigger_oid ( const char *  trigname,
bool  missing_ok 
)

Definition at line 643 of file event_trigger.c.

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

Referenced by get_object_address_unqualified().

644 {
645  Oid oid;
646 
648  if (!OidIsValid(oid) && !missing_ok)
649  ereport(ERROR,
650  (errcode(ERRCODE_UNDEFINED_OBJECT),
651  errmsg("event trigger \"%s\" does not exist", trigname)));
652  return oid;
653 }
int errcode(int sqlerrcode)
Definition: elog.c:575
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:586
#define GetSysCacheOid1(cacheId, key1)
Definition: syscache.h:191
#define ERROR
Definition: elog.h:43
#define CStringGetDatum(X)
Definition: postgres.h:584
#define ereport(elevel, rest)
Definition: elog.h:122
int errmsg(const char *fmt,...)
Definition: elog.c:797

◆ RemoveEventTriggerById()

void RemoveEventTriggerById ( Oid  ctrigOid)

Definition at line 479 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().

480 {
481  Relation tgrel;
482  HeapTuple tup;
483 
485 
487  if (!HeapTupleIsValid(tup))
488  elog(ERROR, "cache lookup failed for event trigger %u", trigOid);
489 
490  CatalogTupleDelete(tgrel, &tup->t_self);
491 
492  ReleaseSysCache(tup);
493 
495 }
void CatalogTupleDelete(Relation heapRel, ItemPointer tid)
Definition: indexing.c:255
#define heap_close(r, l)
Definition: heapam.h:97
#define ObjectIdGetDatum(X)
Definition: postgres.h:513
#define ERROR
Definition: elog.h:43
ItemPointerData t_self
Definition: htup.h:65
#define RowExclusiveLock
Definition: lockdefs.h:38
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1112
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1160
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1290
#define HeapTupleIsValid(tuple)
Definition: htup.h:77
#define EventTriggerRelationId
#define elog
Definition: elog.h:219

◆ trackDroppedObjectsNeeded()

bool trackDroppedObjectsNeeded ( void  )

Definition at line 1306 of file event_trigger.c.

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

Referenced by deleteObjectsInList(), and EventTriggerBeginCompleteQuery().

1307 {
1308  /*
1309  * true if any sql_drop, table_rewrite, ddl_command_end event trigger
1310  * exists
1311  */
1312  return list_length(EventCacheLookup(EVT_SQLDrop)) > 0 ||
1315 }
static int list_length(const List *l)
Definition: pg_list.h:89
List * EventCacheLookup(EventTriggerEvent event)
Definition: evtcache.c:64