reltrigger.h

Go to the documentation of this file.

/*-------------------------------------------------------------------------
 *
 * reltrigger.h
 *    POSTGRES relation trigger definitions.
 *
 *
 * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/utils/reltrigger.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef RELTRIGGER_H
#define RELTRIGGER_H
 
 
/*
 * These struct really belongs to trigger.h, but we put it separately so that
 * it can be cleanly included in rel.h and other places.
 */
 
typedef struct Trigger
{
    Oid         tgoid;          /* OID of trigger (pg_trigger row) */
    /* Remaining fields are copied from pg_trigger, see pg_trigger.h */
    char       *tgname;
    Oid         tgfoid;
    int16       tgtype;
    char        tgenabled;
    bool        tgisinternal;
    bool        tgisclone;
    Oid         tgconstrrelid;
    Oid         tgconstrindid;
    Oid         tgconstraint;
    bool        tgdeferrable;
    bool        tginitdeferred;
    int16       tgnargs;
    int16       tgnattr;
    int16      *tgattr;
    char      **tgargs;
    char       *tgqual;
    char       *tgoldtable;
    char       *tgnewtable;
} Trigger;
 
typedef struct TriggerDesc
{
    Trigger    *triggers;       /* array of Trigger structs */
    int         numtriggers;    /* number of array entries */
 
    /*
     * These flags indicate whether the array contains at least one of each
     * type of trigger.  We use these to skip searching the array if not.
     */
    bool        trig_insert_before_row;
    bool        trig_insert_after_row;
    bool        trig_insert_instead_row;
    bool        trig_insert_before_statement;
    bool        trig_insert_after_statement;
    bool        trig_update_before_row;
    bool        trig_update_after_row;
    bool        trig_update_instead_row;
    bool        trig_update_before_statement;
    bool        trig_update_after_statement;
    bool        trig_delete_before_row;
    bool        trig_delete_after_row;
    bool        trig_delete_instead_row;
    bool        trig_delete_before_statement;
    bool        trig_delete_after_statement;
    /* there are no row-level truncate triggers */
    bool        trig_truncate_before_statement;
    bool        trig_truncate_after_statement;
    /* Is there at least one trigger specifying each transition relation? */
    bool        trig_insert_new_table;
    bool        trig_update_old_table;
    bool        trig_update_new_table;
    bool        trig_delete_old_table;
} TriggerDesc;
 
#endif                          /* RELTRIGGER_H */