src/include/commands/event_trigger.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * event_trigger.h
   4  *        Declarations for command trigger handling.
   5  *
   6  * Portions Copyright (c) 1996-2019, 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 "utils/aclchk_internal.h"
  21 #include "tcop/deparse_utility.h"
  22
  23 typedef struct EventTriggerData
  24 {
  25         NodeTag         type;
  26         const char *event;                      /* event name */
  27         Node       *parsetree;          /* parse tree */
  28         const char *tag;                        /* command tag */
  29 } EventTriggerData;
  30
  31 #define AT_REWRITE_ALTER_PERSISTENCE    0x01
  32 #define AT_REWRITE_DEFAULT_VAL                  0x02
  33 #define AT_REWRITE_COLUMN_REWRITE               0x04
  34
  35 /*
  36  * EventTriggerData is the node type that is passed as fmgr "context" info
  37  * when a function is called by the event trigger manager.
  38  */
  39 #define CALLED_AS_EVENT_TRIGGER(fcinfo) \
  40         ((fcinfo)->context != NULL && IsA((fcinfo)->context, EventTriggerData))
  41
  42 extern Oid      CreateEventTrigger(CreateEventTrigStmt *stmt);
  43 extern void RemoveEventTriggerById(Oid trigOid);
  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 */