1 /*------------------------------------------------------------------------- 2 * 3 * event_trigger.h 4 * Declarations for command trigger handling. 5 * 6 * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group 7 * Portions Copyright (c) 1994, Regents of the University of California 8 * 9 * src/include/commands/event_trigger.h 10 * 11 *------------------------------------------------------------------------- 12 */ 13 #ifndef EVENT_TRIGGER_H 14 #define EVENT_TRIGGER_H 15 16 #include "catalog/dependency.h" 17 #include "catalog/objectaddress.h" 18 #include "catalog/pg_event_trigger.h" 19 #include "nodes/parsenodes.h" 20 #include "tcop/cmdtag.h" 21 #include "tcop/deparse_utility.h" 22 #include "utils/aclchk_internal.h" 23 24 typedef struct EventTriggerData 25 { 26 NodeTag type; 27 const char *event; /* event name */ 28 Node *parsetree; /* parse tree */ 29 CommandTag tag; 30 } EventTriggerData; 31 32 #define AT_REWRITE_ALTER_PERSISTENCE 0x01 33 #define AT_REWRITE_DEFAULT_VAL 0x02 34 #define AT_REWRITE_COLUMN_REWRITE 0x04 35 36 /* 37 * EventTriggerData is the node type that is passed as fmgr "context" info 38 * when a function is called by the event trigger manager. 39 */ 40 #define CALLED_AS_EVENT_TRIGGER(fcinfo) \ 41 ((fcinfo)->context != NULL && IsA((fcinfo)->context, EventTriggerData)) 42 43 extern Oid CreateEventTrigger(CreateEventTrigStmt *stmt); 44 extern Oid get_event_trigger_oid(const char *trigname, bool missing_ok); 45 46 extern Oid AlterEventTrigger(AlterEventTrigStmt *stmt); 47 extern ObjectAddress AlterEventTriggerOwner(const char *name, Oid newOwnerId); 48 extern void AlterEventTriggerOwner_oid(Oid, Oid newOwnerId); 49 50 extern bool EventTriggerSupportsObjectType(ObjectType obtype); 51 extern bool EventTriggerSupportsObjectClass(ObjectClass objclass); 52 extern void EventTriggerDDLCommandStart(Node *parsetree); 53 extern void EventTriggerDDLCommandEnd(Node *parsetree); 54 extern void EventTriggerSQLDrop(Node *parsetree); 55 extern void EventTriggerTableRewrite(Node *parsetree, Oid tableOid, int reason); 56 57 extern bool EventTriggerBeginCompleteQuery(void); 58 extern void EventTriggerEndCompleteQuery(void); 59 extern bool trackDroppedObjectsNeeded(void); 60 extern void EventTriggerSQLDropAddObject(const ObjectAddress *object, 61 bool original, bool normal); 62 63 extern void EventTriggerInhibitCommandCollection(void); 64 extern void EventTriggerUndoInhibitCommandCollection(void); 65 66 extern void EventTriggerCollectSimpleCommand(ObjectAddress address, 67 ObjectAddress secondaryObject, 68 Node *parsetree); 69 70 extern void EventTriggerAlterTableStart(Node *parsetree); 71 extern void EventTriggerAlterTableRelid(Oid objectId); 72 extern void EventTriggerCollectAlterTableSubcmd(Node *subcmd, 73 ObjectAddress address); 74 extern void EventTriggerAlterTableEnd(void); 75 76 extern void EventTriggerCollectGrant(InternalGrant *istmt); 77 extern void EventTriggerCollectAlterOpFam(AlterOpFamilyStmt *stmt, 78 Oid opfamoid, List *operators, 79 List *procedures); 80 extern void EventTriggerCollectCreateOpClass(CreateOpClassStmt *stmt, 81 Oid opcoid, List *operators, 82 List *procedures); 83 extern void EventTriggerCollectAlterTSConfig(AlterTSConfigurationStmt *stmt, 84 Oid cfgId, Oid *dictIds, int ndicts); 85 extern void EventTriggerCollectAlterDefPrivs(AlterDefaultPrivilegesStmt *stmt); 86 87 #endif /* EVENT_TRIGGER_H */ 88