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pg_largeobject.h
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1 /*-------------------------------------------------------------------------
2  *
3  * pg_largeobject.h
4  * definition of the "large object" system catalog (pg_largeobject)
5  *
6  *
7  * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
8  * Portions Copyright (c) 1994, Regents of the University of California
9  *
10  * src/include/catalog/pg_largeobject.h
11  *
12  * NOTES
13  * The Catalog.pm module reads this file and derives schema
14  * information.
15  *
16  *-------------------------------------------------------------------------
17  */
18 #ifndef PG_LARGEOBJECT_H
19 #define PG_LARGEOBJECT_H
20 
21 #include "catalog/genbki.h"
22 #include "catalog/pg_largeobject_d.h"
23 
24 /* ----------------
25  * pg_largeobject definition. cpp turns this into
26  * typedef struct FormData_pg_largeobject
27  * ----------------
28  */
29 CATALOG(pg_largeobject,2613,LargeObjectRelationId)
30 {
31  Oid loid BKI_LOOKUP(pg_largeobject_metadata); /* Identifier of large
32  * object */
33  int32 pageno; /* Page number (starting from 0) */
34 
35  /* data has variable length, but we allow direct access; see inv_api.c */
36  bytea data BKI_FORCE_NOT_NULL; /* Data for page (may be
37  * zero-length) */
39 
40 /* ----------------
41  * Form_pg_largeobject corresponds to a pointer to a tuple with
42  * the format of pg_largeobject relation.
43  * ----------------
44  */
46 
47 DECLARE_UNIQUE_INDEX_PKEY(pg_largeobject_loid_pn_index, 2683, on pg_largeobject using btree(loid oid_ops, pageno int4_ops));
48 #define LargeObjectLOidPNIndexId 2683
49 
50 extern Oid LargeObjectCreate(Oid loid);
51 extern void LargeObjectDrop(Oid loid);
52 extern bool LargeObjectExists(Oid loid);
53 
54 #endif /* PG_LARGEOBJECT_H */
FormData_pg_largeobject
unsigned int Oid
Definition: postgres_ext.h:31
signed int int32
Definition: c.h:429
#define BKI_FORCE_NOT_NULL
Definition: genbki.h:33
#define BKI_LOOKUP(catalog)
Definition: genbki.h:46
DECLARE_UNIQUE_INDEX_PKEY(pg_largeobject_loid_pn_index, 2683, on pg_largeobject using btree(loid oid_ops, pageno int4_ops))
CATALOG(pg_largeobject, 2613, LargeObjectRelationId)
bool LargeObjectExists(Oid loid)
void LargeObjectDrop(Oid loid)
Definition: c.h:621
FormData_pg_largeobject * Form_pg_largeobject
Oid LargeObjectCreate(Oid loid)