66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/*-------------------------------------------------------------------------
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*
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* pg_version.h
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* definition of the system "version" relation (pg_version)
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* along with the relation's initial contents.
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*
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* NOTE: this table has nothing to do with the overall Postgres system
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* version or anything like that. It is for defining individual relations
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* that have multiple concurrently-existing versions. Yes, there used to
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* be such a feature in Postgres, but it's been broken for a long time
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* (see src/backend/commands/_deadcode/version.c). The pg_version table
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* isn't even created at present.
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*
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*
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: pg_version.h,v 1.11 2000/04/12 17:16:30 momjian 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_VERSION_H
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#define PG_VERSION_H
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/* ----------------
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* postgres.h contains the system type definintions 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_version definition. cpp turns this into
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* typedef struct FormData_pg_version
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* ----------------
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*/
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CATALOG(pg_version)
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{
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Oid verrelid;
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Oid verbaseid;
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int4 vertime; /* really should be some abstime */
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} FormData_pg_version;
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/* ----------------
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* Form_pg_version corresponds to a pointer to a tuple with
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* the format of pg_version relation.
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* ----------------
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*/
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typedef FormData_pg_version *Form_pg_version;
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/* ----------------
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* compiler constants for pg_version
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* ----------------
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*/
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#define Natts_pg_version 3
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#define Anum_pg_version_verrelid 1
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#define Anum_pg_version_verbaseid 2
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#define Anum_pg_version_vertime 3
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#endif /* PG_VERSION_H */
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