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/*-------------------------------------------------------------------------
*
* pg_index.h
* definition of the system "index" relation (pg_index)
* along with the relation's initial contents.
*
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pg_index.h,v 1.16 2001/01/24 19:43:21 momjian Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
* information from the DATA() statements.
*
*-------------------------------------------------------------------------
*/
#ifndef PG_INDEX_H
#define PG_INDEX_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_index definition. cpp turns this into
* typedef struct FormData_pg_index. The oid of the index relation
* is stored in indexrelid; the oid of the indexed relation is stored
* in indrelid.
* ----------------
*/
/*
* it seems that all variable length fields should go at the _end_,
* because the system cache routines only copy the fields up to the
* first variable length field. so I moved indislossy, indhaskeytype,
* and indisunique before indpred. --djm 8/20/96
*/
CATALOG(pg_index)
{
Oid indexrelid;
Oid indrelid;
Oid indproc; /* registered procedure for functional
* index */
int2vector indkey;
oidvector indclass;
bool indisclustered;
bool indislossy; /* do we fetch false tuples (lossy
* compression)? */
bool indhaskeytype; /* does key type != attribute type? */
bool indisunique; /* is this a unique index? */
bool indisprimary; /* is this index for primary key */
Oid indreference; /* oid of index of referenced relation (ie
* - this index for foreign key */
text indpred; /* query plan for partial index predicate */
} FormData_pg_index;
/* ----------------
* Form_pg_index corresponds to a pointer to a tuple with
* the format of pg_index relation.
* ----------------
*/
typedef FormData_pg_index *Form_pg_index;
/* ----------------
* compiler constants for pg_index
* ----------------
*/
#define Natts_pg_index 12
#define Anum_pg_index_indexrelid 1
#define Anum_pg_index_indrelid 2
#define Anum_pg_index_indproc 3
#define Anum_pg_index_indkey 4
#define Anum_pg_index_indclass 5
#define Anum_pg_index_indisclustered 6
#define Anum_pg_index_indislossy 7
#define Anum_pg_index_indhaskeytype 8
#define Anum_pg_index_indisunique 9
#define Anum_pg_index_indisprimary 10
#define Anum_pg_index_indreference 11
#define Anum_pg_index_indpred 12
#endif /* PG_INDEX_H */
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