pg_database.h

来自「关系型数据库 Postgresql 6.5.2」· C头文件 代码 · 共 58 行

/*-------------------------------------------------------------------------
 *
 * pg_database.h
 *	  definition of the system "database" relation (pg_database)
 *	  along with the relation's initial contents.
 *
 *
 * Copyright (c) 1994, Regents of the University of California
 *
 * $Id: pg_database.h,v 1.8 1999/02/13 23:21:08 momjian Exp $
 *
 * NOTES
 *	  the genbki.sh script reads this file and generates .bki
 *	  information from the DATA() statements.
 *
 *-------------------------------------------------------------------------
 */
#ifndef PG_DATABASE_H
#define PG_DATABASE_H

/* ----------------
 *		postgres.h contains the system type definintions and the
 *		CATALOG(), BOOTSTRAP and DATA() sugar words so this file
 *		can be read by both genbki.sh and the C compiler.
 * ----------------
 */

/* ----------------
 *		pg_database definition.  cpp turns this into
 *		typedef struct FormData_pg_database
 * ----------------
 */
CATALOG(pg_database) BOOTSTRAP
{
	NameData	datname;
	int4		datdba;
	int4		encoding;
	text		datpath;		/* VARIABLE LENGTH FIELD */
} FormData_pg_database;

/* ----------------
 *		Form_pg_database corresponds to a pointer to a tuple with
 *		the format of pg_database relation.
 * ----------------
 */
typedef FormData_pg_database *Form_pg_database;

/* ----------------
 *		compiler constants for pg_database
 * ----------------
 */
#define Natts_pg_database				4
#define Anum_pg_database_datname		1
#define Anum_pg_database_datdba			2
#define Anum_pg_database_encoding		3
#define Anum_pg_database_datpath		4
#endif	 /* PG_DATABASE_H */