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Viewing changes to src/include/catalog/pg_index.h

  • Committer: alvherre
  • Date: 2005-12-16 21:24:52 UTC
  • Revision ID: svn-v4:db760fc0-0f08-0410-9d63-cc6633f64896:trunk:1
Initial import of the REL8_0_3 sources from the Pgsql CVS repository.

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src/include/catalog/pg_index.h
 
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/*-------------------------------------------------------------------------
 
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 *
 
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 * pg_index.h
 
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 *        definition of the system "index" relation (pg_index)
 
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 *        along with the relation's initial contents.
 
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 *
 
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 *
 
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 * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
 
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 * Portions Copyright (c) 1994, Regents of the University of California
 
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 *
 
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 * $PostgreSQL: pgsql/src/include/catalog/pg_index.h,v 1.35 2004-12-31 22:03:24 pgsql Exp $
 
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 *
 
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 * NOTES
 
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 *        the genbki.sh script reads this file and generates .bki
 
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 *        information from the DATA() statements.
 
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 *
 
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 *-------------------------------------------------------------------------
 
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 */
 
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#ifndef PG_INDEX_H
 
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#define PG_INDEX_H
 
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/* ----------------
 
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 *              postgres.h contains the system type definitions and the
 
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 *              CATALOG(), BOOTSTRAP and DATA() sugar words so this file
 
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 *              can be read by both genbki.sh and the C compiler.
 
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 * ----------------
 
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 */
 
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/* ----------------
 
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 *              pg_index definition.  cpp turns this into
 
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 *              typedef struct FormData_pg_index.
 
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 * ----------------
 
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 */
 
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CATALOG(pg_index) BKI_WITHOUT_OIDS
 
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{
 
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        Oid                     indexrelid;             /* OID of the index */
 
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        Oid                     indrelid;               /* OID of the relation it indexes */
 
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        int2vector      indkey;                 /* column numbers of indexed cols, or 0 */
 
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        oidvector       indclass;               /* opclass identifiers */
 
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        int2            indnatts;               /* number of columns in index */
 
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        bool            indisunique;    /* is this a unique index? */
 
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        bool            indisprimary;   /* is this index for primary key? */
 
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        bool            indisclustered; /* is this the index last clustered by? */
 
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        /* VARIABLE LENGTH FIELDS: */
 
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        text            indexprs;               /* expression trees for index attributes
 
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                                                                 * that are not simple column references;
 
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                                                                 * one for each zero entry in indkey[] */
 
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        text            indpred;                /* expression tree for predicate, if a
 
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                                                                 * partial index; else NULL */
 
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} FormData_pg_index;
 
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/* ----------------
 
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 *              Form_pg_index corresponds to a pointer to a tuple with
 
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 *              the format of pg_index relation.
 
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 * ----------------
 
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 */
 
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typedef FormData_pg_index *Form_pg_index;
 
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/* ----------------
 
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 *              compiler constants for pg_index
 
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 * ----------------
 
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 */
 
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#define Natts_pg_index                                  10
 
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#define Anum_pg_index_indexrelid                1
 
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#define Anum_pg_index_indrelid                  2
 
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#define Anum_pg_index_indkey                    3
 
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#define Anum_pg_index_indclass                  4
 
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#define Anum_pg_index_indnatts                  5
 
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#define Anum_pg_index_indisunique               6
 
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#define Anum_pg_index_indisprimary              7
 
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#define Anum_pg_index_indisclustered    8
 
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#define Anum_pg_index_indexprs                  9
 
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#define Anum_pg_index_indpred                   10
 
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#endif   /* PG_INDEX_H */