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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 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 trigOid)
 
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)
 
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_PERSISTENCE

#define AT_REWRITE_ALTER_PERSISTENCE   0x01

Definition at line 32 of file event_trigger.h.

Referenced by ATPrepCmd().

◆ AT_REWRITE_COLUMN_REWRITE

#define AT_REWRITE_COLUMN_REWRITE   0x04

Definition at line 34 of file event_trigger.h.

Referenced by ATPrepAlterColumnType().

◆ AT_REWRITE_DEFAULT_VAL

#define AT_REWRITE_DEFAULT_VAL   0x02

Definition at line 33 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 384 of file event_trigger.c.

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

Referenced by standard_ProcessUtility().

385 {
386  Relation tgrel;
387  HeapTuple tup;
388  Oid trigoid;
389  Form_pg_event_trigger evtForm;
390  char tgenabled = stmt->tgenabled;
391 
392  tgrel = table_open(EventTriggerRelationId, RowExclusiveLock);
393 
395  CStringGetDatum(stmt->trigname));
396  if (!HeapTupleIsValid(tup))
397  ereport(ERROR,
398  (errcode(ERRCODE_UNDEFINED_OBJECT),
399  errmsg("event trigger \"%s\" does not exist",
400  stmt->trigname)));
401 
402  evtForm = (Form_pg_event_trigger) GETSTRUCT(tup);
403  trigoid = evtForm->oid;
404 
405  if (!pg_event_trigger_ownercheck(trigoid, GetUserId()))
407  stmt->trigname);
408 
409  /* tuple is a copy, so we can modify it below */
410  evtForm->evtenabled = tgenabled;
411 
412  CatalogTupleUpdate(tgrel, &tup->t_self, tup);
413 
414  InvokeObjectPostAlterHook(EventTriggerRelationId,
415  trigoid, 0);
416 
417  /* clean up */
418  heap_freetuple(tup);
420 
421  return trigoid;
422 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:133
#define GETSTRUCT(TUP)
Definition: htup_details.h:655
Oid GetUserId(void)
Definition: miscinit.c:448
int errcode(int sqlerrcode)
Definition: elog.c:610
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
unsigned int Oid
Definition: postgres_ext.h:31
void aclcheck_error(AclResult aclerr, ObjectType objtype, const char *objectname)
Definition: aclchk.c:3327
#define ERROR
Definition: elog.h:43
bool pg_event_trigger_ownercheck(Oid et_oid, Oid roleid)
Definition: aclchk.c:5111
ItemPointerData t_self
Definition: htup.h:65
#define RowExclusiveLock
Definition: lockdefs.h:38
#define CStringGetDatum(X)
Definition: postgres.h:578
#define InvokeObjectPostAlterHook(classId, objectId, subId)
Definition: objectaccess.h:175
#define ereport(elevel,...)
Definition: elog.h:144
FormData_pg_event_trigger * Form_pg_event_trigger
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
void CatalogTupleUpdate(Relation heapRel, ItemPointer otid, HeapTuple tup)
Definition: indexing.c:224
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:174
int errmsg(const char *fmt,...)
Definition: elog.c:824
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39

◆ AlterEventTriggerOwner()

ObjectAddress AlterEventTriggerOwner ( const char *  name,
Oid  newOwnerId 
)

Definition at line 428 of file event_trigger.c.

References AlterEventTriggerOwner_internal(), CStringGetDatum, ereport, errcode(), errmsg(), ERROR, EVENTTRIGGERNAME, GETSTRUCT, heap_freetuple(), HeapTupleIsValid, ObjectAddressSet, RowExclusiveLock, SearchSysCacheCopy1, table_close(), and table_open().

Referenced by ExecAlterOwnerStmt().

429 {
430  Oid evtOid;
431  HeapTuple tup;
432  Form_pg_event_trigger evtForm;
433  Relation rel;
434  ObjectAddress address;
435 
436  rel = table_open(EventTriggerRelationId, RowExclusiveLock);
437 
439 
440  if (!HeapTupleIsValid(tup))
441  ereport(ERROR,
442  (errcode(ERRCODE_UNDEFINED_OBJECT),
443  errmsg("event trigger \"%s\" does not exist", name)));
444 
445  evtForm = (Form_pg_event_trigger) GETSTRUCT(tup);
446  evtOid = evtForm->oid;
447 
448  AlterEventTriggerOwner_internal(rel, tup, newOwnerId);
449 
450  ObjectAddressSet(address, EventTriggerRelationId, evtOid);
451 
452  heap_freetuple(tup);
453 
455 
456  return address;
457 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:133
#define GETSTRUCT(TUP)
Definition: htup_details.h:655
int errcode(int sqlerrcode)
Definition: elog.c:610
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
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:578
#define ereport(elevel,...)
Definition: elog.h:144
FormData_pg_event_trigger * Form_pg_event_trigger
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
const char * name
Definition: encode.c:555
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:174
int errmsg(const char *fmt,...)
Definition: elog.c:824
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39

◆ AlterEventTriggerOwner_oid()

void AlterEventTriggerOwner_oid ( Oid  ,
Oid  newOwnerId 
)

Definition at line 463 of file event_trigger.c.

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

Referenced by shdepReassignOwned().

464 {
465  HeapTuple tup;
466  Relation rel;
467 
468  rel = table_open(EventTriggerRelationId, RowExclusiveLock);
469 
471 
472  if (!HeapTupleIsValid(tup))
473  ereport(ERROR,
474  (errcode(ERRCODE_UNDEFINED_OBJECT),
475  errmsg("event trigger with OID %u does not exist", trigOid)));
476 
477  AlterEventTriggerOwner_internal(rel, tup, newOwnerId);
478 
479  heap_freetuple(tup);
480 
482 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:133
int errcode(int sqlerrcode)
Definition: elog.c:610
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1338
static void AlterEventTriggerOwner_internal(Relation rel, HeapTuple tup, Oid newOwnerId)
#define ObjectIdGetDatum(X)
Definition: postgres.h:507
#define ERROR
Definition: elog.h:43
#define RowExclusiveLock
Definition: lockdefs.h:38
#define ereport(elevel,...)
Definition: elog.h:144
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define SearchSysCacheCopy1(cacheId, key1)
Definition: syscache.h:174
int errmsg(const char *fmt,...)
Definition: elog.c:824
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39

◆ CreateEventTrigger()

Oid CreateEventTrigger ( CreateEventTrigStmt stmt)

Definition at line 108 of file event_trigger.c.

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

Referenced by standard_ProcessUtility().

109 {
110  HeapTuple tuple;
111  Oid funcoid;
112  Oid funcrettype;
113  Oid evtowner = GetUserId();
114  ListCell *lc;
115  List *tags = NULL;
116 
117  /*
118  * It would be nice to allow database owners or even regular users to do
119  * this, but there are obvious privilege escalation risks which would have
120  * to somehow be plugged first.
121  */
122  if (!superuser())
123  ereport(ERROR,
124  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
125  errmsg("permission denied to create event trigger \"%s\"",
126  stmt->trigname),
127  errhint("Must be superuser to create an event trigger.")));
128 
129  /* Validate event name. */
130  if (strcmp(stmt->eventname, "ddl_command_start") != 0 &&
131  strcmp(stmt->eventname, "ddl_command_end") != 0 &&
132  strcmp(stmt->eventname, "sql_drop") != 0 &&
133  strcmp(stmt->eventname, "table_rewrite") != 0)
134  ereport(ERROR,
135  (errcode(ERRCODE_SYNTAX_ERROR),
136  errmsg("unrecognized event name \"%s\"",
137  stmt->eventname)));
138 
139  /* Validate filter conditions. */
140  foreach(lc, stmt->whenclause)
141  {
142  DefElem *def = (DefElem *) lfirst(lc);
143 
144  if (strcmp(def->defname, "tag") == 0)
145  {
146  if (tags != NULL)
148  tags = (List *) def->arg;
149  }
150  else
151  ereport(ERROR,
152  (errcode(ERRCODE_SYNTAX_ERROR),
153  errmsg("unrecognized filter variable \"%s\"", def->defname)));
154  }
155 
156  /* Validate tag list, if any. */
157  if ((strcmp(stmt->eventname, "ddl_command_start") == 0 ||
158  strcmp(stmt->eventname, "ddl_command_end") == 0 ||
159  strcmp(stmt->eventname, "sql_drop") == 0)
160  && tags != NULL)
161  validate_ddl_tags("tag", tags);
162  else if (strcmp(stmt->eventname, "table_rewrite") == 0
163  && tags != NULL)
164  validate_table_rewrite_tags("tag", tags);
165 
166  /*
167  * Give user a nice error message if an event trigger of the same name
168  * already exists.
169  */
171  if (HeapTupleIsValid(tuple))
172  ereport(ERROR,
174  errmsg("event trigger \"%s\" already exists",
175  stmt->trigname)));
176 
177  /* Find and validate the trigger function. */
178  funcoid = LookupFuncName(stmt->funcname, 0, NULL, false);
179  funcrettype = get_func_rettype(funcoid);
180  if (funcrettype != EVTTRIGGEROID)
181  ereport(ERROR,
182  (errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
183  errmsg("function %s must return type %s",
184  NameListToString(stmt->funcname), "event_trigger")));
185 
186  /* Insert catalog entries. */
187  return insert_event_trigger_tuple(stmt->trigname, stmt->eventname,
188  evtowner, funcoid, tags);
189 }
static void validate_ddl_tags(const char *filtervar, List *taglist)
int errhint(const char *fmt,...)
Definition: elog.c:1071
Oid GetUserId(void)
Definition: miscinit.c:448
int errcode(int sqlerrcode)
Definition: elog.c:610
bool superuser(void)
Definition: superuser.c:46
unsigned int Oid
Definition: postgres_ext.h:31
Oid get_func_rettype(Oid funcid)
Definition: lsyscache.c:1567
#define ERROR
Definition: elog.h:43
static void validate_table_rewrite_tags(const char *filtervar, List *taglist)
Oid LookupFuncName(List *funcname, int nargs, const Oid *argtypes, bool missing_ok)
Definition: parse_func.c:2103
static void error_duplicate_filter_variable(const char *defname)
#define CStringGetDatum(X)
Definition: postgres.h:578
Node * arg
Definition: parsenodes.h:733
HeapTuple SearchSysCache1(int cacheId, Datum key1)
Definition: syscache.c:1116
char * NameListToString(List *names)
Definition: namespace.c:3102
static Oid insert_event_trigger_tuple(const char *trigname, const char *eventname, Oid evtOwner, Oid funcoid, List *tags)
#define ereport(elevel,...)
Definition: elog.h:144
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define lfirst(lc)
Definition: pg_list.h:190
int errmsg(const char *fmt,...)
Definition: elog.c:824
char * defname
Definition: parsenodes.h:732
#define ERRCODE_DUPLICATE_OBJECT
Definition: streamutil.c:31
Definition: pg_list.h:50

◆ EventTriggerAlterTableEnd()

void EventTriggerAlterTableEnd ( void  )

Definition at line 1656 of file event_trigger.c.

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

Referenced by AlterTableMoveAll(), ProcessUtilityForAlterTable(), and ProcessUtilitySlow().

1657 {
1658  CollectedCommand *parent;
1659 
1660  /* ignore if event trigger context not set, or collection disabled */
1661  if (!currentEventTriggerState ||
1663  return;
1664 
1666 
1667  /* If no subcommands, don't collect */
1669  {
1673  }
1674  else
1676 
1678 }
struct CollectedCommand::@109::@111 alterTable
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
void pfree(void *pointer)
Definition: mcxt.c:1056
CollectedCommand * currentCommand
Definition: event_trigger.c:67
struct CollectedCommand * parent
union CollectedCommand::@109 d
List * lappend(List *list, void *datum)
Definition: list.c:321
static int list_length(const List *l)
Definition: pg_list.h:169

◆ EventTriggerAlterTableRelid()

void EventTriggerAlterTableRelid ( Oid  objectId)

Definition at line 1603 of file event_trigger.c.

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

Referenced by AlterTableInternal(), ProcessUtilityForAlterTable(), and ProcessUtilitySlow().

1604 {
1605  if (!currentEventTriggerState ||
1607  return;
1608 
1609  currentEventTriggerState->currentCommand->d.alterTable.objectId = objectId;
1610 }
struct CollectedCommand::@109::@111 alterTable
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
CollectedCommand * currentCommand
Definition: event_trigger.c:67
union CollectedCommand::@109 d

◆ EventTriggerAlterTableStart()

void EventTriggerAlterTableStart ( Node parsetree)

Definition at line 1569 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::parent, CollectedCommand::parsetree, SCT_AlterTable, and CollectedCommand::type.

Referenced by AlterTableMoveAll(), ProcessUtilityForAlterTable(), and ProcessUtilitySlow().

1570 {
1571  MemoryContext oldcxt;
1572  CollectedCommand *command;
1573 
1574  /* ignore if event trigger context not set, or collection disabled */
1575  if (!currentEventTriggerState ||
1577  return;
1578 
1580 
1581  command = palloc(sizeof(CollectedCommand));
1582 
1583  command->type = SCT_AlterTable;
1584  command->in_extension = creating_extension;
1585 
1586  command->d.alterTable.classId = RelationRelationId;
1587  command->d.alterTable.objectId = InvalidOid;
1588  command->d.alterTable.subcmds = NIL;
1589  command->parsetree = copyObject(parsetree);
1590 
1593 
1594  MemoryContextSwitchTo(oldcxt);
1595 }
#define NIL
Definition: pg_list.h:65
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
struct CollectedCommand::@109::@111 alterTable
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
CollectedCommand * currentCommand
Definition: event_trigger.c:67
struct CollectedCommand * parent
union CollectedCommand::@109 d
#define InvalidOid
Definition: postgres_ext.h:36
bool creating_extension
Definition: extension.c:71
void * palloc(Size size)
Definition: mcxt.c:949
#define copyObject(obj)
Definition: nodes.h:645

◆ EventTriggerBeginCompleteQuery()

bool EventTriggerBeginCompleteQuery ( void  )

Definition at line 1097 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().

1098 {
1100  MemoryContext cxt;
1101 
1102  /*
1103  * Currently, sql_drop, table_rewrite, ddl_command_end events are the only
1104  * reason to have event trigger state at all; so if there are none, don't
1105  * install one.
1106  */
1108  return false;
1109 
1111  "event trigger state",
1113  state = MemoryContextAlloc(cxt, sizeof(EventTriggerQueryState));
1114  state->cxt = cxt;
1115  slist_init(&(state->SQLDropList));
1116  state->in_sql_drop = false;
1117  state->table_rewrite_oid = InvalidOid;
1118 
1121  state->currentCommand = NULL;
1122  state->commandList = NIL;
1124  currentEventTriggerState = state;
1125 
1126  return true;
1127 }
#define NIL
Definition: pg_list.h:65
#define AllocSetContextCreate
Definition: memutils.h:170
bool trackDroppedObjectsNeeded(void)
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
static void slist_init(slist_head *head)
Definition: ilist.h:554
#define ALLOCSET_DEFAULT_SIZES
Definition: memutils.h:192
CollectedCommand * currentCommand
Definition: event_trigger.c:67
struct EventTriggerQueryState * previous
Definition: event_trigger.c:70
MemoryContext TopMemoryContext
Definition: mcxt.c:44
#define InvalidOid
Definition: postgres_ext.h:36
Definition: regguts.h:298
void * MemoryContextAlloc(MemoryContext context, Size size)
Definition: mcxt.c:796

◆ EventTriggerCollectAlterDefPrivs()

void EventTriggerCollectAlterDefPrivs ( AlterDefaultPrivilegesStmt stmt)

Definition at line 1834 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().

1835 {
1836  MemoryContext oldcxt;
1837  CollectedCommand *command;
1838 
1839  /* ignore if event trigger context not set, or collection disabled */
1840  if (!currentEventTriggerState ||
1842  return;
1843 
1845 
1846  command = palloc0(sizeof(CollectedCommand));
1847  command->type = SCT_AlterDefaultPrivileges;
1848  command->d.defprivs.objtype = stmt->action->objtype;
1849  command->in_extension = creating_extension;
1850  command->parsetree = (Node *) copyObject(stmt);
1851 
1854  MemoryContextSwitchTo(oldcxt);
1855 }
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:529
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
union CollectedCommand::@109 d
List * lappend(List *list, void *datum)
Definition: list.c:321
void * palloc0(Size size)
Definition: mcxt.c:980
bool creating_extension
Definition: extension.c:71
struct CollectedCommand::@109::@116 defprivs
ObjectType objtype
Definition: parsenodes.h:1929
#define copyObject(obj)
Definition: nodes.h:645

◆ EventTriggerCollectAlterOpFam()

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

Definition at line 1732 of file event_trigger.c.

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

Referenced by AlterOpFamilyAdd(), and AlterOpFamilyDrop().

1734 {
1735  MemoryContext oldcxt;
1736  CollectedCommand *command;
1737 
1738  /* ignore if event trigger context not set, or collection disabled */
1739  if (!currentEventTriggerState ||
1741  return;
1742 
1744 
1745  command = palloc(sizeof(CollectedCommand));
1746  command->type = SCT_AlterOpFamily;
1747  command->in_extension = creating_extension;
1748  ObjectAddressSet(command->d.opfam.address,
1749  OperatorFamilyRelationId, opfamoid);
1750  command->d.opfam.operators = operators;
1751  command->d.opfam.procedures = procedures;
1752  command->parsetree = (Node *) copyObject(stmt);
1753 
1756 
1757  MemoryContextSwitchTo(oldcxt);
1758 }
struct CollectedCommand::@109::@113 opfam
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:529
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
union CollectedCommand::@109 d
List * lappend(List *list, void *datum)
Definition: list.c:321
bool creating_extension
Definition: extension.c:71
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
void * palloc(Size size)
Definition: mcxt.c:949
#define copyObject(obj)
Definition: nodes.h:645

◆ EventTriggerCollectAlterTableSubcmd()

void EventTriggerCollectAlterTableSubcmd ( Node subcmd,
ObjectAddress  address 
)

Definition at line 1621 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().

1622 {
1623  MemoryContext oldcxt;
1625 
1626  /* ignore if event trigger context not set, or collection disabled */
1627  if (!currentEventTriggerState ||
1629  return;
1630 
1631  Assert(IsA(subcmd, AlterTableCmd));
1634 
1636 
1637  newsub = palloc(sizeof(CollectedATSubcmd));
1638  newsub->address = address;
1639  newsub->parsetree = copyObject(subcmd);
1640 
1643 
1644  MemoryContextSwitchTo(oldcxt);
1645 }
#define IsA(nodeptr, _type_)
Definition: nodes.h:580
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
struct CollectedCommand::@109::@111 alterTable
#define OidIsValid(objectId)
Definition: c.h:644
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
CollectedCommand * currentCommand
Definition: event_trigger.c:67
union CollectedCommand::@109 d
List * lappend(List *list, void *datum)
Definition: list.c:321
#define Assert(condition)
Definition: c.h:738
void * palloc(Size size)
Definition: mcxt.c:949
#define copyObject(obj)
Definition: nodes.h:645
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 1799 of file event_trigger.c.

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

Referenced by DropConfigurationMapping(), and MakeConfigurationMapping().

1801 {
1802  MemoryContext oldcxt;
1803  CollectedCommand *command;
1804 
1805  /* ignore if event trigger context not set, or collection disabled */
1806  if (!currentEventTriggerState ||
1808  return;
1809 
1811 
1812  command = palloc0(sizeof(CollectedCommand));
1813  command->type = SCT_AlterTSConfig;
1814  command->in_extension = creating_extension;
1815  ObjectAddressSet(command->d.atscfg.address,
1816  TSConfigRelationId, cfgId);
1817  command->d.atscfg.dictIds = palloc(sizeof(Oid) * ndicts);
1818  memcpy(command->d.atscfg.dictIds, dictIds, sizeof(Oid) * ndicts);
1819  command->d.atscfg.ndicts = ndicts;
1820  command->parsetree = (Node *) copyObject(stmt);
1821 
1824 
1825  MemoryContextSwitchTo(oldcxt);
1826 }
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:529
CollectedCommandType type
unsigned int Oid
Definition: postgres_ext.h:31
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
union CollectedCommand::@109 d
List * lappend(List *list, void *datum)
Definition: list.c:321
void * palloc0(Size size)
Definition: mcxt.c:980
bool creating_extension
Definition: extension.c:71
struct CollectedCommand::@109::@115 atscfg
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
void * palloc(Size size)
Definition: mcxt.c:949
#define copyObject(obj)
Definition: nodes.h:645

◆ EventTriggerCollectCreateOpClass()

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

Definition at line 1765 of file event_trigger.c.

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

Referenced by DefineOpClass().

1767 {
1768  MemoryContext oldcxt;
1769  CollectedCommand *command;
1770 
1771  /* ignore if event trigger context not set, or collection disabled */
1772  if (!currentEventTriggerState ||
1774  return;
1775 
1777 
1778  command = palloc0(sizeof(CollectedCommand));
1779  command->type = SCT_CreateOpClass;
1780  command->in_extension = creating_extension;
1781  ObjectAddressSet(command->d.createopc.address,
1782  OperatorClassRelationId, opcoid);
1783  command->d.createopc.operators = operators;
1784  command->d.createopc.procedures = procedures;
1785  command->parsetree = (Node *) copyObject(stmt);
1786 
1789 
1790  MemoryContextSwitchTo(oldcxt);
1791 }
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Definition: nodes.h:529
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
union CollectedCommand::@109 d
List * lappend(List *list, void *datum)
Definition: list.c:321
void * palloc0(Size size)
Definition: mcxt.c:980
bool creating_extension
Definition: extension.c:71
struct CollectedCommand::@109::@114 createopc
#define ObjectAddressSet(addr, class_id, object_id)
Definition: objectaddress.h:40
#define copyObject(obj)
Definition: nodes.h:645

◆ EventTriggerCollectGrant()

void EventTriggerCollectGrant ( InternalGrant istmt)

Definition at line 1688 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().

1689 {
1690  MemoryContext oldcxt;
1691  CollectedCommand *command;
1692  InternalGrant *icopy;
1693  ListCell *cell;
1694 
1695  /* ignore if event trigger context not set, or collection disabled */
1696  if (!currentEventTriggerState ||
1698  return;
1699 
1701 
1702  /*
1703  * This is tedious, but necessary.
1704  */
1705  icopy = palloc(sizeof(InternalGrant));
1706  memcpy(icopy, istmt, sizeof(InternalGrant));
1707  icopy->objects = list_copy(istmt->objects);
1708  icopy->grantees = list_copy(istmt->grantees);
1709  icopy->col_privs = NIL;
1710  foreach(cell, istmt->col_privs)
1711  icopy->col_privs = lappend(icopy->col_privs, copyObject(lfirst(cell)));
1712 
1713  /* Now collect it, using the copied InternalGrant */
1714  command = palloc(sizeof(CollectedCommand));
1715  command->type = SCT_Grant;
1716  command->in_extension = creating_extension;
1717  command->d.grant.istmt = icopy;
1718  command->parsetree = NULL;
1719 
1722 
1723  MemoryContextSwitchTo(oldcxt);
1724 }
#define NIL
Definition: pg_list.h:65
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
List * list_copy(const List *oldlist)
Definition: list.c:1403
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
struct CollectedCommand::@109::@112 grant
union CollectedCommand::@109 d
List * lappend(List *list, void *datum)
Definition: list.c:321
bool creating_extension
Definition: extension.c:71
#define lfirst(lc)
Definition: pg_list.h:190
void * palloc(Size size)
Definition: mcxt.c:949
#define copyObject(obj)
Definition: nodes.h:645

◆ EventTriggerCollectSimpleCommand()

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

Definition at line 1531 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().

1534 {
1535  MemoryContext oldcxt;
1536  CollectedCommand *command;
1537 
1538  /* ignore if event trigger context not set, or collection disabled */
1539  if (!currentEventTriggerState ||
1541  return;
1542 
1544 
1545  command = palloc(sizeof(CollectedCommand));
1546 
1547  command->type = SCT_Simple;
1548  command->in_extension = creating_extension;
1549 
1550  command->d.simple.address = address;
1551  command->d.simple.secondaryObject = secondaryObject;
1552  command->parsetree = copyObject(parsetree);
1553 
1555  command);
1556 
1557  MemoryContextSwitchTo(oldcxt);
1558 }
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
CollectedCommandType type
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
union CollectedCommand::@109 d
struct CollectedCommand::@109::@110 simple
List * lappend(List *list, void *datum)
Definition: list.c:321
bool creating_extension
Definition: extension.c:71
void * palloc(Size size)
Definition: mcxt.c:949
#define copyObject(obj)
Definition: nodes.h:645

◆ EventTriggerDDLCommandEnd()

void EventTriggerDDLCommandEnd ( Node parsetree)

Definition at line 711 of file event_trigger.c.

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

Referenced by ProcessUtilitySlow().

712 {
713  List *runlist;
714  EventTriggerData trigdata;
715 
716  /*
717  * See EventTriggerDDLCommandStart for a discussion about why event
718  * triggers are disabled in single user mode.
719  */
720  if (!IsUnderPostmaster)
721  return;
722 
723  /*
724  * Also do nothing if our state isn't set up, which it won't be if there
725  * weren't any relevant event triggers at the start of the current DDL
726  * command. This test might therefore seem optional, but it's important
727  * because EventTriggerCommonSetup might find triggers that didn't exist
728  * at the time the command started. Although this function itself
729  * wouldn't crash, the event trigger functions would presumably call
730  * pg_event_trigger_ddl_commands which would fail. Better to do nothing
731  * until the next command.
732  */
734  return;
735 
736  runlist = EventTriggerCommonSetup(parsetree,
737  EVT_DDLCommandEnd, "ddl_command_end",
738  &trigdata);
739  if (runlist == NIL)
740  return;
741 
742  /*
743  * Make sure anything the main command did will be visible to the event
744  * triggers.
745  */
747 
748  /* Run the triggers. */
749  EventTriggerInvoke(runlist, &trigdata);
750 
751  /* Cleanup. */
752  list_free(runlist);
753 }
#define NIL
Definition: pg_list.h:65
static void EventTriggerInvoke(List *fn_oid_list, EventTriggerData *trigdata)
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
static List * EventTriggerCommonSetup(Node *parsetree, EventTriggerEvent event, const char *eventstr, EventTriggerData *trigdata)
bool IsUnderPostmaster
Definition: globals.c:109
void CommandCounterIncrement(void)
Definition: xact.c:1006
void list_free(List *list)
Definition: list.c:1376
Definition: pg_list.h:50

◆ EventTriggerDDLCommandStart()

void EventTriggerDDLCommandStart ( Node parsetree)

Definition at line 663 of file event_trigger.c.

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

Referenced by ProcessUtilitySlow().

664 {
665  List *runlist;
666  EventTriggerData trigdata;
667 
668  /*
669  * Event Triggers are completely disabled in standalone mode. There are
670  * (at least) two reasons for this:
671  *
672  * 1. A sufficiently broken event trigger might not only render the
673  * database unusable, but prevent disabling itself to fix the situation.
674  * In this scenario, restarting in standalone mode provides an escape
675  * hatch.
676  *
677  * 2. BuildEventTriggerCache relies on systable_beginscan_ordered, and
678  * therefore will malfunction if pg_event_trigger's indexes are damaged.
679  * To allow recovery from a damaged index, we need some operating mode
680  * wherein event triggers are disabled. (Or we could implement
681  * heapscan-and-sort logic for that case, but having disaster recovery
682  * scenarios depend on code that's otherwise untested isn't appetizing.)
683  */
684  if (!IsUnderPostmaster)
685  return;
686 
687  runlist = EventTriggerCommonSetup(parsetree,
689  "ddl_command_start",
690  &trigdata);
691  if (runlist == NIL)
692  return;
693 
694  /* Run the triggers. */
695  EventTriggerInvoke(runlist, &trigdata);
696 
697  /* Cleanup. */
698  list_free(runlist);
699 
700  /*
701  * Make sure anything the event triggers did will be visible to the main
702  * command.
703  */
705 }
#define NIL
Definition: pg_list.h:65
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:109
void CommandCounterIncrement(void)
Definition: xact.c:1006
void list_free(List *list)
Definition: list.c:1376
Definition: pg_list.h:50

◆ EventTriggerEndCompleteQuery()

void EventTriggerEndCompleteQuery ( void  )

Definition at line 1141 of file event_trigger.c.

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

Referenced by ProcessUtilitySlow().

1142 {
1143  EventTriggerQueryState *prevstate;
1144 
1145  prevstate = currentEventTriggerState->previous;
1146 
1147  /* this avoids the need for retail pfree of SQLDropList items: */
1149 
1150  currentEventTriggerState = prevstate;
1151 }
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:211
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
struct EventTriggerQueryState * previous
Definition: event_trigger.c:70

◆ EventTriggerInhibitCommandCollection()

void EventTriggerInhibitCommandCollection ( void  )

Definition at line 1497 of file event_trigger.c.

References EventTriggerQueryState::commandCollectionInhibited.

Referenced by ProcessUtilitySlow().

1498 {
1500  return;
1501 
1503 }
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73

◆ EventTriggerSQLDrop()

void EventTriggerSQLDrop ( Node parsetree)

Definition at line 759 of file event_trigger.c.

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

Referenced by ProcessUtilitySlow().

760 {
761  List *runlist;
762  EventTriggerData trigdata;
763 
764  /*
765  * See EventTriggerDDLCommandStart for a discussion about why event
766  * triggers are disabled in single user mode.
767  */
768  if (!IsUnderPostmaster)
769  return;
770 
771  /*
772  * Use current state to determine whether this event fires at all. If
773  * there are no triggers for the sql_drop event, then we don't have
774  * anything to do here. Note that dropped object collection is disabled
775  * if this is the case, so even if we were to try to run, the list would
776  * be empty.
777  */
780  return;
781 
782  runlist = EventTriggerCommonSetup(parsetree,
783  EVT_SQLDrop, "sql_drop",
784  &trigdata);
785 
786  /*
787  * Nothing to do if run list is empty. Note this typically can't happen,
788  * because if there are no sql_drop events, then objects-to-drop wouldn't
789  * have been collected in the first place and we would have quit above.
790  * But it could occur if event triggers were dropped partway through.
791  */
792  if (runlist == NIL)
793  return;
794 
795  /*
796  * Make sure anything the main command did will be visible to the event
797  * triggers.
798  */
800 
801  /*
802  * Make sure pg_event_trigger_dropped_objects only works when running
803  * these triggers. Use PG_TRY to ensure in_sql_drop is reset even when
804  * one trigger fails. (This is perhaps not necessary, as the currentState
805  * variable will be removed shortly by our caller, but it seems better to
806  * play safe.)
807  */
809 
810  /* Run the triggers. */
811  PG_TRY();
812  {
813  EventTriggerInvoke(runlist, &trigdata);
814  }
815  PG_FINALLY();
816  {
818  }
819  PG_END_TRY();
820 
821  /* Cleanup. */
822  list_free(runlist);
823 }
#define NIL
Definition: pg_list.h:65
static void EventTriggerInvoke(List *fn_oid_list, EventTriggerData *trigdata)
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
static List * EventTriggerCommonSetup(Node *parsetree, EventTriggerEvent event, const char *eventstr, EventTriggerData *trigdata)
bool IsUnderPostmaster
Definition: globals.c:109
static bool slist_is_empty(slist_head *head)
Definition: ilist.h:563
#define PG_FINALLY()
Definition: elog.h:312
void CommandCounterIncrement(void)
Definition: xact.c:1006
void list_free(List *list)
Definition: list.c:1376
#define PG_TRY()
Definition: elog.h:295
Definition: pg_list.h:50
#define PG_END_TRY()
Definition: elog.h:320

◆ EventTriggerSQLDropAddObject()

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

Definition at line 1191 of file event_trigger.c.

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

Referenced by deleteObjectsInList(), and DropSubscription().

1192 {
1193  SQLDropObject *obj;
1194  MemoryContext oldcxt;
1195 
1197  return;
1198 
1200 
1201  /* don't report temp schemas except my own */
1202  if (object->classId == NamespaceRelationId &&
1203  (isAnyTempNamespace(object->objectId) &&
1204  !isTempNamespace(object->objectId)))
1205  return;
1206 
1208 
1209  obj = palloc0(sizeof(SQLDropObject));
1210  obj->address = *object;
1211  obj->original = original;
1212  obj->normal = normal;
1213 
1214  /*
1215  * Obtain schema names from the object's catalog tuple, if one exists;
1216  * this lets us skip objects in temp schemas. We trust that
1217  * ObjectProperty contains all object classes that can be
1218  * schema-qualified.
1219  */
1220  if (is_objectclass_supported(object->classId))
1221  {
1222  Relation catalog;
1223  HeapTuple tuple;
1224 
1225  catalog = table_open(obj->address.classId, AccessShareLock);
1226  tuple = get_catalog_object_by_oid(catalog,
1227  get_object_attnum_oid(object->classId),
1228  obj->address.objectId);
1229 
1230  if (tuple)
1231  {
1233  Datum datum;
1234  bool isnull;
1235 
1237  if (attnum != InvalidAttrNumber)
1238  {
1239  datum = heap_getattr(tuple, attnum,
1240  RelationGetDescr(catalog), &isnull);
1241  if (!isnull)
1242  {
1243  Oid namespaceId;
1244 
1245  namespaceId = DatumGetObjectId(datum);
1246  /* temp objects are only reported if they are my own */
1247  if (isTempNamespace(namespaceId))
1248  {
1249  obj->schemaname = "pg_temp";
1250  obj->istemp = true;
1251  }
1252  else if (isAnyTempNamespace(namespaceId))
1253  {
1254  pfree(obj);
1255  table_close(catalog, AccessShareLock);
1256  MemoryContextSwitchTo(oldcxt);
1257  return;
1258  }
1259  else
1260  {
1261  obj->schemaname = get_namespace_name(namespaceId);
1262  obj->istemp = false;
1263  }
1264  }
1265  }
1266 
1268  obj->address.objectSubId == 0)
1269  {
1270  attnum = get_object_attnum_name(obj->address.classId);
1271  if (attnum != InvalidAttrNumber)
1272  {
1273  datum = heap_getattr(tuple, attnum,
1274  RelationGetDescr(catalog), &isnull);
1275  if (!isnull)
1276  obj->objname = pstrdup(NameStr(*DatumGetName(datum)));
1277  }
1278  }
1279  }
1280 
1281  table_close(catalog, AccessShareLock);
1282  }
1283  else
1284  {
1285  if (object->classId == NamespaceRelationId &&
1286  isTempNamespace(object->objectId))
1287  obj->istemp = true;
1288  }
1289 
1290  /* object identity, objname and objargs */
1291  obj->objidentity =
1292  getObjectIdentityParts(&obj->address, &obj->addrnames, &obj->addrargs);
1293 
1294  /* object type */
1296 
1298 
1299  MemoryContextSwitchTo(oldcxt);
1300 }
bool get_object_namensp_unique(Oid class_id)
slist_node next
Definition: event_trigger.c:88
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:133
ObjectAddress address
Definition: event_trigger.c:78
char * getObjectTypeDescription(const ObjectAddress *object)
AttrNumber get_object_attnum_oid(Oid class_id)
#define RelationGetDescr(relation)
Definition: rel.h:482
const char * objname
Definition: event_trigger.c:80
#define DatumGetObjectId(X)
Definition: postgres.h:500
char * pstrdup(const char *in)
Definition: mcxt.c:1186
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
List * addrnames
Definition: event_trigger.c:83
AttrNumber get_object_attnum_namespace(Oid class_id)
const char * objidentity
Definition: event_trigger.c:81
unsigned int Oid
Definition: postgres_ext.h:31
ObjectClass getObjectClass(const ObjectAddress *object)
Definition: dependency.c:2728
const char * objecttype
Definition: event_trigger.c:82
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
#define DatumGetName(X)
Definition: postgres.h:585
void pfree(void *pointer)
Definition: mcxt.c:1056
char * get_namespace_name(Oid nspid)
Definition: lsyscache.c:3191
bool isTempNamespace(Oid namespaceId)
Definition: namespace.c:3157
bool EventTriggerSupportsObjectClass(ObjectClass objclass)
const char * schemaname
Definition: event_trigger.c:79
#define heap_getattr(tup, attnum, tupleDesc, isnull)
Definition: htup_details.h:762
AttrNumber get_object_attnum_name(Oid class_id)
void * palloc0(Size size)
Definition: mcxt.c:980
HeapTuple get_catalog_object_by_oid(Relation catalog, AttrNumber oidcol, Oid objectId)
uintptr_t Datum
Definition: postgres.h:367
int16 attnum
Definition: pg_attribute.h:79
#define Assert(condition)
Definition: c.h:738
#define InvalidAttrNumber
Definition: attnum.h:23
#define NameStr(name)
Definition: c.h:615
bool isAnyTempNamespace(Oid namespaceId)
Definition: namespace.c:3195
bool is_objectclass_supported(Oid class_id)
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
int16 AttrNumber
Definition: attnum.h:21

◆ EventTriggerSupportsObjectClass()

bool EventTriggerSupportsObjectClass ( ObjectClass  objclass)

Definition at line 1032 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().

1033 {
1034  switch (objclass)
1035  {
1036  case OCLASS_DATABASE:
1037  case OCLASS_TBLSPACE:
1038  case OCLASS_ROLE:
1039  /* no support for global objects */
1040  return false;
1041  case OCLASS_EVENT_TRIGGER:
1042  /* no support for event triggers on event triggers */
1043  return false;
1044  case OCLASS_CLASS:
1045  case OCLASS_PROC:
1046  case OCLASS_TYPE:
1047  case OCLASS_CAST:
1048  case OCLASS_COLLATION:
1049  case OCLASS_CONSTRAINT:
1050  case OCLASS_CONVERSION:
1051  case OCLASS_DEFAULT:
1052  case OCLASS_LANGUAGE:
1053  case OCLASS_LARGEOBJECT:
1054  case OCLASS_OPERATOR:
1055  case OCLASS_OPCLASS:
1056  case OCLASS_OPFAMILY:
1057  case OCLASS_AM:
1058  case OCLASS_AMOP:
1059  case OCLASS_AMPROC:
1060  case OCLASS_REWRITE:
1061  case OCLASS_TRIGGER:
1062  case OCLASS_SCHEMA:
1063  case OCLASS_STATISTIC_EXT:
1064  case OCLASS_TSPARSER:
1065  case OCLASS_TSDICT:
1066  case OCLASS_TSTEMPLATE:
1067  case OCLASS_TSCONFIG:
1068  case OCLASS_FDW:
1069  case OCLASS_FOREIGN_SERVER:
1070  case OCLASS_USER_MAPPING:
1071  case OCLASS_DEFACL:
1072  case OCLASS_EXTENSION:
1073  case OCLASS_POLICY:
1074  case OCLASS_PUBLICATION:
1076  case OCLASS_SUBSCRIPTION:
1077  case OCLASS_TRANSFORM:
1078  return true;
1079 
1080  /*
1081  * There's intentionally no default: case here; we want the
1082  * compiler to warn if a new OCLASS hasn't been handled above.
1083  */
1084  }
1085 
1086  /* Shouldn't get here, but if we do, say "no support" */
1087  return false;
1088 }

◆ EventTriggerSupportsObjectType()

bool EventTriggerSupportsObjectType ( ObjectType  obtype)

Definition at line 958 of file event_trigger.c.

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

Referenced by ExecGrantStmt_oids(), and standard_ProcessUtility().

959 {
960  switch (obtype)
961  {
962  case OBJECT_DATABASE:
963  case OBJECT_TABLESPACE:
964  case OBJECT_ROLE:
965  /* no support for global objects */
966  return false;
968  /* no support for event triggers on event triggers */
969  return false;
971  case OBJECT_AGGREGATE:
972  case OBJECT_AMOP:
973  case OBJECT_AMPROC:
974  case OBJECT_ATTRIBUTE:
975  case OBJECT_CAST:
976  case OBJECT_COLUMN:
977  case OBJECT_COLLATION:
978  case OBJECT_CONVERSION:
979  case OBJECT_DEFACL:
980  case OBJECT_DEFAULT:
981  case OBJECT_DOMAIN:
983  case OBJECT_EXTENSION:
984  case OBJECT_FDW:
987  case OBJECT_FUNCTION:
988  case OBJECT_INDEX:
989  case OBJECT_LANGUAGE:
990  case OBJECT_LARGEOBJECT:
991  case OBJECT_MATVIEW:
992  case OBJECT_OPCLASS:
993  case OBJECT_OPERATOR:
994  case OBJECT_OPFAMILY:
995  case OBJECT_POLICY:
996  case OBJECT_PROCEDURE:
997  case OBJECT_PUBLICATION:
999  case OBJECT_ROUTINE:
1000  case OBJECT_RULE:
1001  case OBJECT_SCHEMA:
1002  case OBJECT_SEQUENCE:
1003  case OBJECT_SUBSCRIPTION:
1004  case OBJECT_STATISTIC_EXT:
1005  case OBJECT_TABCONSTRAINT:
1006  case OBJECT_TABLE:
1007  case OBJECT_TRANSFORM:
1008  case OBJECT_TRIGGER:
1010  case OBJECT_TSDICTIONARY:
1011  case OBJECT_TSPARSER:
1012  case OBJECT_TSTEMPLATE:
1013  case OBJECT_TYPE:
1014  case OBJECT_USER_MAPPING:
1015  case OBJECT_VIEW:
1016  return true;
1017 
1018  /*
1019  * There's intentionally no default: case here; we want the
1020  * compiler to warn if a new ObjectType hasn't been handled above.
1021  */
1022  }
1023 
1024  /* Shouldn't get here, but if we do, say "no support" */
1025  return false;
1026 }

◆ EventTriggerTableRewrite()

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

Definition at line 830 of file event_trigger.c.

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

Referenced by ATRewriteTables().

831 {
832  List *runlist;
833  EventTriggerData trigdata;
834 
835  /*
836  * See EventTriggerDDLCommandStart for a discussion about why event
837  * triggers are disabled in single user mode.
838  */
839  if (!IsUnderPostmaster)
840  return;
841 
842  /*
843  * Also do nothing if our state isn't set up, which it won't be if there
844  * weren't any relevant event triggers at the start of the current DDL
845  * command. This test might therefore seem optional, but it's
846  * *necessary*, because EventTriggerCommonSetup might find triggers that
847  * didn't exist at the time the command started.
848  */
850  return;
851 
852  runlist = EventTriggerCommonSetup(parsetree,
854  "table_rewrite",
855  &trigdata);
856  if (runlist == NIL)
857  return;
858 
859  /*
860  * Make sure pg_event_trigger_table_rewrite_oid only works when running
861  * these triggers. Use PG_TRY to ensure table_rewrite_oid is reset even
862  * when one trigger fails. (This is perhaps not necessary, as the
863  * currentState variable will be removed shortly by our caller, but it
864  * seems better to play safe.)
865  */
868 
869  /* Run the triggers. */
870  PG_TRY();
871  {
872  EventTriggerInvoke(runlist, &trigdata);
873  }
874  PG_FINALLY();
875  {
878  }
879  PG_END_TRY();
880 
881  /* Cleanup. */
882  list_free(runlist);
883 
884  /*
885  * Make sure anything the event triggers did will be visible to the main
886  * command.
887  */
889 }
#define NIL
Definition: pg_list.h:65
static void EventTriggerInvoke(List *fn_oid_list, EventTriggerData *trigdata)
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73
static List * EventTriggerCommonSetup(Node *parsetree, EventTriggerEvent event, const char *eventstr, EventTriggerData *trigdata)
bool IsUnderPostmaster
Definition: globals.c:109
#define PG_FINALLY()
Definition: elog.h:312
void CommandCounterIncrement(void)
Definition: xact.c:1006
#define InvalidOid
Definition: postgres_ext.h:36
void list_free(List *list)
Definition: list.c:1376
#define PG_TRY()
Definition: elog.h:295
Definition: pg_list.h:50
#define PG_END_TRY()
Definition: elog.h:320

◆ EventTriggerUndoInhibitCommandCollection()

void EventTriggerUndoInhibitCommandCollection ( void  )

Definition at line 1509 of file event_trigger.c.

References EventTriggerQueryState::commandCollectionInhibited.

Referenced by ProcessUtilitySlow().

1510 {
1512  return;
1513 
1515 }
static EventTriggerQueryState * currentEventTriggerState
Definition: event_trigger.c:73

◆ get_event_trigger_oid()

Oid get_event_trigger_oid ( const char *  trigname,
bool  missing_ok 
)

Definition at line 528 of file event_trigger.c.

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

Referenced by get_object_address_unqualified().

529 {
530  Oid oid;
531 
532  oid = GetSysCacheOid1(EVENTTRIGGERNAME, Anum_pg_event_trigger_oid,
533  CStringGetDatum(trigname));
534  if (!OidIsValid(oid) && !missing_ok)
535  ereport(ERROR,
536  (errcode(ERRCODE_UNDEFINED_OBJECT),
537  errmsg("event trigger \"%s\" does not exist", trigname)));
538  return oid;
539 }
#define GetSysCacheOid1(cacheId, oidcol, key1)
Definition: syscache.h:192
int errcode(int sqlerrcode)
Definition: elog.c:610
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:644
#define ERROR
Definition: elog.h:43
#define CStringGetDatum(X)
Definition: postgres.h:578
#define ereport(elevel,...)
Definition: elog.h:144
int errmsg(const char *fmt,...)
Definition: elog.c:824

◆ RemoveEventTriggerById()

void RemoveEventTriggerById ( Oid  trigOid)

Definition at line 362 of file event_trigger.c.

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

Referenced by doDeletion().

363 {
364  Relation tgrel;
365  HeapTuple tup;
366 
367  tgrel = table_open(EventTriggerRelationId, RowExclusiveLock);
368 
370  if (!HeapTupleIsValid(tup))
371  elog(ERROR, "cache lookup failed for event trigger %u", trigOid);
372 
373  CatalogTupleDelete(tgrel, &tup->t_self);
374 
375  ReleaseSysCache(tup);
376 
378 }
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:133
void CatalogTupleDelete(Relation heapRel, ItemPointer tid)
Definition: indexing.c:269
#define ObjectIdGetDatum(X)
Definition: postgres.h:507
#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:1116
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1164
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define elog(elevel,...)
Definition: elog.h:214
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39

◆ trackDroppedObjectsNeeded()

bool trackDroppedObjectsNeeded ( void  )

Definition at line 1159 of file event_trigger.c.

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

Referenced by deleteObjectsInList(), and EventTriggerBeginCompleteQuery().

1160 {
1161  /*
1162  * true if any sql_drop, table_rewrite, ddl_command_end event trigger
1163  * exists
1164  */
1165  return list_length(EventCacheLookup(EVT_SQLDrop)) > 0 ||
1168 }
static int list_length(const List *l)
Definition: pg_list.h:169
List * EventCacheLookup(EventTriggerEvent event)
Definition: evtcache.c:65