toasting.h

来自「PostgreSQL 8.2中增加了很多企业用户所需要的功能和性能上的提高,其开」· C头文件 代码 · 共 62 行

/*-------------------------------------------------------------------------
 *
 * toasting.h
 *	  This file provides some definitions to support creation of toast tables
 *
 *
 * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * $PostgreSQL: pgsql/src/include/catalog/toasting.h,v 1.2 2006/10/04 00:30:08 momjian Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef TOASTING_H
#define TOASTING_H

/*
 * toasting.c prototypes
 */
extern void AlterTableCreateToastTable(Oid relOid);
extern void BootstrapToastTable(char *relName,
					Oid toastOid, Oid toastIndexOid);


/*
 * This macro is just to keep the C compiler from spitting up on the
 * upcoming commands for genbki.sh.
 */
#define DECLARE_TOAST(name,toastoid,indexoid) extern int no_such_variable


/*
 * What follows are lines processed by genbki.sh to create the statements
 * the bootstrap parser will turn into BootstrapToastTable commands.
 * Each line specifies the system catalog that needs a toast table,
 * the OID to assign to the toast table, and the OID to assign to the
 * toast table's index.  The reason we hard-wire these OIDs is that we
 * need stable OIDs for shared relations, and that includes toast tables
 * of shared relations.
 */

/* normal catalogs */
DECLARE_TOAST(pg_attrdef, 2830, 2831);
DECLARE_TOAST(pg_constraint, 2832, 2833);
DECLARE_TOAST(pg_description, 2834, 2835);
DECLARE_TOAST(pg_proc, 2836, 2837);
DECLARE_TOAST(pg_rewrite, 2838, 2839);
DECLARE_TOAST(pg_statistic, 2840, 2841);

/* shared catalogs */
DECLARE_TOAST(pg_authid, 2842, 2843);
#define PgAuthidToastTable 2842
#define PgAuthidToastIndex 2843
DECLARE_TOAST(pg_database, 2844, 2845);
#define PgDatabaseToastTable 2844
#define PgDatabaseToastIndex 2845
DECLARE_TOAST(pg_shdescription, 2846, 2847);
#define PgShdescriptionToastTable 2846
#define PgShdescriptionToastIndex 2847

#endif   /* TOASTING_H */