pg_attrdef.h

Go to the documentation of this file.

/*-------------------------------------------------------------------------
 *
 * pg_attrdef.h
 *    definition of the system "attribute defaults" relation (pg_attrdef)
 *    along with the relation's initial contents.
 *
 *
 * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/catalog/pg_attrdef.h
 *
 * NOTES
 *    the genbki.pl script reads this file and generates .bki
 *    information from the DATA() statements.
 *
 *-------------------------------------------------------------------------
 */
#ifndef PG_ATTRDEF_H
#define PG_ATTRDEF_H

#include "catalog/genbki.h"

/* ----------------
 *      pg_attrdef definition.  cpp turns this into
 *      typedef struct FormData_pg_attrdef
 * ----------------
 */
#define AttrDefaultRelationId  2604

CATALOG(pg_attrdef,2604)
{
    Oid         adrelid;        /* OID of table containing attribute */
    int16       adnum;          /* attnum of attribute */

#ifdef CATALOG_VARLEN           /* variable-length fields start here */
    pg_node_tree adbin;         /* nodeToString representation of default */
    text        adsrc;          /* human-readable representation of default */
#endif
} FormData_pg_attrdef;

/* ----------------
 *      Form_pg_attrdef corresponds to a pointer to a tuple with
 *      the format of pg_attrdef relation.
 * ----------------
 */
typedef FormData_pg_attrdef *Form_pg_attrdef;

/* ----------------
 *      compiler constants for pg_attrdef
 * ----------------
 */
#define Natts_pg_attrdef                4
#define Anum_pg_attrdef_adrelid         1
#define Anum_pg_attrdef_adnum           2
#define Anum_pg_attrdef_adbin           3
#define Anum_pg_attrdef_adsrc           4

#endif   /* PG_ATTRDEF_H */