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Diffstat (limited to 'src/include/catalog/pg_largeobject.h')
| -rw-r--r-- | src/include/catalog/pg_largeobject.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/include/catalog/pg_largeobject.h b/src/include/catalog/pg_largeobject.h new file mode 100644 index 0000000000..7777604e27 --- /dev/null +++ b/src/include/catalog/pg_largeobject.h @@ -0,0 +1,63 @@ +/*------------------------------------------------------------------------- + * + * pg_largeobject.h + * definition of the system "largeobject" relation (pg_largeobject) + * along with the relation's initial contents. + * + * + * Portions Copyright (c) 1996-2000, PostgreSQL, Inc + * Portions Copyright (c) 1994, Regents of the University of California + * + * $Id: pg_largeobject.h,v 1.5 2000/10/24 01:38:41 tgl Exp $ + * + * NOTES + * the genbki.sh script reads this file and generates .bki + * information from the DATA() statements. + * + *------------------------------------------------------------------------- + */ +#ifndef PG_LARGEOBJECT_H +#define PG_LARGEOBJECT_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_largeobject definition. cpp turns this into + * typedef struct FormData_pg_largeobject. Large object id + * is stored in loid; + * ---------------- + */ + +CATALOG(pg_largeobject) +{ + Oid loid; /* Identifier of large object */ + int4 pageno; /* Page number (starting from 0) */ + bytea data; /* Data for page (may be zero-length) */ +} FormData_pg_largeobject; + +/* ---------------- + * Form_pg_largeobject corresponds to a pointer to a tuple with + * the format of pg_largeobject relation. + * ---------------- + */ +typedef FormData_pg_largeobject *Form_pg_largeobject; + +/* ---------------- + * compiler constants for pg_largeobject + * ---------------- + */ +#define Natts_pg_largeobject 3 +#define Anum_pg_largeobject_loid 1 +#define Anum_pg_largeobject_pageno 2 +#define Anum_pg_largeobject_data 3 + +extern Oid LargeObjectCreate(Oid loid); +extern void LargeObjectDrop(Oid loid); +extern bool LargeObjectExists(Oid loid); + +#endif /* PG_LARGEOBJECT_H */ |