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64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/*-------------------------------------------------------------------------
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*
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* pg_largeobject.h
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* definition of the system "largeobject" relation (pg_largeobject)
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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) 1996-2001, 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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* $Id: pg_largeobject.h,v 1.6 2001/01/24 19:43:21 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_LARGEOBJECT_H
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#define PG_LARGEOBJECT_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_largeobject definition. cpp turns this into
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* typedef struct FormData_pg_largeobject. Large object id
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* is stored in loid;
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* ----------------
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*/
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CATALOG(pg_largeobject)
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{
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Oid loid; /* Identifier of large object */
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int4 pageno; /* Page number (starting from 0) */
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bytea data; /* Data for page (may be zero-length) */
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} FormData_pg_largeobject;
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/* ----------------
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* Form_pg_largeobject corresponds to a pointer to a tuple with
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* the format of pg_largeobject relation.
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* ----------------
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*/
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typedef FormData_pg_largeobject *Form_pg_largeobject;
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/* ----------------
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* compiler constants for pg_largeobject
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* ----------------
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*/
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#define Natts_pg_largeobject 3
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#define Anum_pg_largeobject_loid 1
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#define Anum_pg_largeobject_pageno 2
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#define Anum_pg_largeobject_data 3
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extern Oid LargeObjectCreate(Oid loid);
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extern void LargeObjectDrop(Oid loid);
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extern bool LargeObjectExists(Oid loid);
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#endif /* PG_LARGEOBJECT_H */
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