codekingpro/portable-devtools

1/*-------------------------------------------------------------------------2 *3 * pg_attrdef.h4 *	  definition of the "attribute defaults" system catalog (pg_attrdef)5 *6 *7 * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group8 * Portions Copyright (c) 1994, Regents of the University of California9 *10 * src/include/catalog/pg_attrdef.h11 *12 * NOTES13 *	  The Catalog.pm module reads this file and derives schema14 *	  information.15 *16 *-------------------------------------------------------------------------17 */18#ifndef PG_ATTRDEF_H19#define PG_ATTRDEF_H20 21#include "catalog/genbki.h"22#include "catalog/objectaddress.h"23#include "catalog/pg_attrdef_d.h"24 25/* ----------------26 *		pg_attrdef definition.  cpp turns this into27 *		typedef struct FormData_pg_attrdef28 * ----------------29 */30CATALOG(pg_attrdef,2604,AttrDefaultRelationId)31{32	Oid			oid;			/* oid */33 34	Oid			adrelid BKI_LOOKUP(pg_class);	/* OID of table containing35												 * attribute */36	int16		adnum;			/* attnum of attribute */37 38#ifdef CATALOG_VARLEN			/* variable-length fields start here */39	pg_node_tree adbin BKI_FORCE_NOT_NULL;	/* nodeToString representation of40											 * default */41#endif42} FormData_pg_attrdef;43 44/* ----------------45 *		Form_pg_attrdef corresponds to a pointer to a tuple with46 *		the format of pg_attrdef relation.47 * ----------------48 */49typedef FormData_pg_attrdef *Form_pg_attrdef;50 51DECLARE_TOAST(pg_attrdef, 2830, 2831);52 53DECLARE_UNIQUE_INDEX(pg_attrdef_adrelid_adnum_index, 2656, AttrDefaultIndexId, on pg_attrdef using btree(adrelid oid_ops, adnum int2_ops));54DECLARE_UNIQUE_INDEX_PKEY(pg_attrdef_oid_index, 2657, AttrDefaultOidIndexId, on pg_attrdef using btree(oid oid_ops));55 56DECLARE_FOREIGN_KEY((adrelid, adnum), pg_attribute, (attrelid, attnum));57 58 59extern Oid	StoreAttrDefault(Relation rel, AttrNumber attnum,60							 Node *expr, bool is_internal,61							 bool add_column_mode);62extern void RemoveAttrDefault(Oid relid, AttrNumber attnum,63							  DropBehavior behavior,64							  bool complain, bool internal);65extern void RemoveAttrDefaultById(Oid attrdefId);66 67extern Oid	GetAttrDefaultOid(Oid relid, AttrNumber attnum);68extern ObjectAddress GetAttrDefaultColumnAddress(Oid attrdefoid);69 70#endif							/* PG_ATTRDEF_H */71