/*-------------------------------------------------------------------------
*
* pg_shdepend.h
* definition of the system "shared dependency" relation (pg_shdepend)
* along with the relation's initial contents.
*
*
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/catalog/pg_shdepend.h,v 1.10 2009/06/11 14:49:10 momjian Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
* information from the DATA() statements.
*
*-------------------------------------------------------------------------
*/
#ifndef PG_SHDEPEND_H
#define PG_SHDEPEND_H
#include "catalog/genbki.h"
/* ----------------
* pg_shdepend definition. cpp turns this into
* typedef struct FormData_pg_shdepend
* ----------------
*/
#define SharedDependRelationId 1214
CATALOG(pg_shdepend,1214) BKI_SHARED_RELATION BKI_WITHOUT_OIDS
{
/*
* Identification of the dependent (referencing) object.
*
* These fields are all zeroes for a DEPENDENCY_PIN entry. Also, dbid can
* be zero to denote a shared object.
*/
Oid dbid; /* OID of database containing object */
Oid classid; /* OID of table containing object */
Oid objid; /* OID of object itself */
int4 objsubid; /* column number, or 0 if not used */
/*
* Identification of the independent (referenced) object. This is always
* a shared object, so we need no database ID field. We don't bother with
* a sub-object ID either.
*/
Oid refclassid; /* OID of table containing object */
Oid refobjid; /* OID of object itself */
/*
* Precise semantics of the relationship are specified by the deptype
* field. See SharedDependencyType in catalog/dependency.h.
*/
char deptype; /* see codes in dependency.h */
} FormData_pg_shdepend;
/* ----------------
* Form_pg_shdepend corresponds to a pointer to a row with
* the format of pg_shdepend relation.
* ----------------
*/
typedef FormData_pg_shdepend *Form_pg_shdepend;
/* ----------------
* compiler constants for pg_shdepend
* ----------------
*/
#define Natts_pg_shdepend 7
#define Anum_pg_shdepend_dbid 1
#define Anum_pg_shdepend_classid 2
#define Anum_pg_shdepend_objid 3
#define Anum_pg_shdepend_objsubid 4
#define Anum_pg_shdepend_refclassid 5
#define Anum_pg_shdepend_refobjid 6
#define Anum_pg_shdepend_deptype 7
/*
* pg_shdepend has no preloaded contents; system-defined dependencies are
* loaded into it during a late stage of the initdb process.
*
* NOTE: we do not represent all possible dependency pairs in pg_shdepend;
* for example, there's not much value in creating an explicit dependency
* from a relation to its database. Currently, only dependencies on roles
* are explicitly stored in pg_shdepend.
*/
#endif /* PG_SHDEPEND_H */
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