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29275b1d17
Reported-by: Michael Paquier Discussion: https://postgr.es/m/ZZKTDPxBBMt3C0J9@paquier.xyz Backpatch-through: 12
66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
/*-------------------------------------------------------------------------
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*
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* pg_shdescription.h
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* definition of the "shared description" system catalog
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* (pg_shdescription)
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*
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* Because the contents of this table are taken from the *.dat files
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* of other catalogs, there is no pg_shdescription.dat file. The initial
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* contents are assembled by genbki.pl and loaded during initdb.
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*
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* NOTE: an object is identified by the OID of the row that primarily
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* defines the object, plus the OID of the table that that row appears in.
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* For example, a database is identified by the OID of its pg_database row
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* plus the pg_class OID of table pg_database. This allows unique
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* identification of objects without assuming that OIDs are unique
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* across tables.
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*
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*
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* Portions Copyright (c) 1996-2024, 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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* src/include/catalog/pg_shdescription.h
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*
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* NOTES
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* The Catalog.pm module reads this file and derives schema
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* information.
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PG_SHDESCRIPTION_H
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#define PG_SHDESCRIPTION_H
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#include "catalog/genbki.h"
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#include "catalog/pg_shdescription_d.h"
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/* ----------------
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* pg_shdescription definition. cpp turns this into
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* typedef struct FormData_pg_shdescription
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* ----------------
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*/
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CATALOG(pg_shdescription,2396,SharedDescriptionRelationId) BKI_SHARED_RELATION
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{
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Oid objoid; /* OID of object itself */
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Oid classoid; /* OID of table containing object */
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#ifdef CATALOG_VARLEN /* variable-length fields start here */
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text description BKI_FORCE_NOT_NULL; /* description of object */
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#endif
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} FormData_pg_shdescription;
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/* ----------------
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* Form_pg_shdescription corresponds to a pointer to a tuple with
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* the format of pg_shdescription relation.
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* ----------------
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*/
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typedef FormData_pg_shdescription * Form_pg_shdescription;
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DECLARE_TOAST_WITH_MACRO(pg_shdescription, 2846, 2847, PgShdescriptionToastTable, PgShdescriptionToastIndex);
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DECLARE_UNIQUE_INDEX_PKEY(pg_shdescription_o_c_index, 2397, SharedDescriptionObjIndexId, pg_shdescription, btree(objoid oid_ops, classoid oid_ops));
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/* We do not use BKI_LOOKUP here because it causes problems for genbki.pl */
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DECLARE_FOREIGN_KEY((classoid), pg_class, (oid));
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#endif /* PG_SHDESCRIPTION_H */
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