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Diffstat (limited to 'src/include/catalog/pg_shdescription.h')
-rw-r--r-- | src/include/catalog/pg_shdescription.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/include/catalog/pg_shdescription.h b/src/include/catalog/pg_shdescription.h new file mode 100644 index 0000000..543e216 --- /dev/null +++ b/src/include/catalog/pg_shdescription.h @@ -0,0 +1,68 @@ +/*------------------------------------------------------------------------- + * + * pg_shdescription.h + * definition of the "shared description" system catalog + * (pg_shdescription) + * + * Because the contents of this table are taken from the *.dat files + * of other catalogs, there is no pg_shdescription.dat file. The initial + * contents are assembled by genbki.pl and loaded during initdb. + * + * NOTE: an object is identified by the OID of the row that primarily + * defines the object, plus the OID of the table that that row appears in. + * For example, a database is identified by the OID of its pg_database row + * plus the pg_class OID of table pg_database. This allows unique + * identification of objects without assuming that OIDs are unique + * across tables. + * + * + * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/catalog/pg_shdescription.h + * + * NOTES + * The Catalog.pm module reads this file and derives schema + * information. + * + *------------------------------------------------------------------------- + */ +#ifndef PG_SHDESCRIPTION_H +#define PG_SHDESCRIPTION_H + +#include "catalog/genbki.h" +#include "catalog/pg_shdescription_d.h" + +/* ---------------- + * pg_shdescription definition. cpp turns this into + * typedef struct FormData_pg_shdescription + * ---------------- + */ +CATALOG(pg_shdescription,2396,SharedDescriptionRelationId) BKI_SHARED_RELATION +{ + Oid objoid; /* OID of object itself */ + Oid classoid; /* OID of table containing object */ + +#ifdef CATALOG_VARLEN /* variable-length fields start here */ + text description BKI_FORCE_NOT_NULL; /* description of object */ +#endif +} FormData_pg_shdescription; + +/* ---------------- + * Form_pg_shdescription corresponds to a pointer to a tuple with + * the format of pg_shdescription relation. + * ---------------- + */ +typedef FormData_pg_shdescription * Form_pg_shdescription; + +DECLARE_TOAST(pg_shdescription, 2846, 2847); +#define PgShdescriptionToastTable 2846 +#define PgShdescriptionToastIndex 2847 + +DECLARE_UNIQUE_INDEX_PKEY(pg_shdescription_o_c_index, 2397, on pg_shdescription using btree(objoid oid_ops, classoid oid_ops)); +#define SharedDescriptionObjIndexId 2397 + +/* We do not use BKI_LOOKUP here because it causes problems for genbki.pl */ +DECLARE_FOREIGN_KEY((classoid), pg_class, (oid)); + +#endif /* PG_SHDESCRIPTION_H */ |