数据库系统

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pg_statistic.h：源码内容

							/*-------------------------------------------------------------------------
 *
 * pg_statistic.h
 *	  definition of the system "statistic" relation (pg_statistic)
 *	  along with the relation's initial contents.
 *
 *
 * Copyright (c) 1994, Regents of the University of California
 *
 * $Id: pg_statistic.h,v 1.6 1999/02/13 23:21:15 momjian Exp $
 *
 * NOTES
 *	  the genbki.sh script reads this file and generates .bki
 *	  information from the DATA() statements.
 *
 *-------------------------------------------------------------------------
 */
#ifndef PG_STATISTIC_H
#define PG_STATISTIC_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_statistic definition.  cpp turns this into
 *		typedef struct FormData_pg_statistic
 * ----------------
 */
CATALOG(pg_statistic)
{
	Oid			starelid;
	int2		staattnum;
	Oid			staop;
	text		stalokey;		/* VARIABLE LENGTH FIELD */
	text		stahikey;		/* VARIABLE LENGTH FIELD */
} FormData_pg_statistic;
/* ----------------
 *		Form_pg_statistic corresponds to a pointer to a tuple with
 *		the format of pg_statistic relation.
 * ----------------
 */
typedef FormData_pg_statistic *Form_pg_statistic;
/* ----------------
 *		compiler constants for pg_statistic
 * ----------------
 */
#define Natts_pg_statistic				5
#define Anum_pg_statistic_starelid		1
#define Anum_pg_statistic_staattnum		2
#define Anum_pg_statistic_staop			3
#define Anum_pg_statistic_stalokey		4
#define Anum_pg_statistic_stahikey		5
#endif	 /* PG_STATISTIC_H */

						