| /*------------------------------------------------------------------------- |
| * |
| * pg_description.h |
| * definition of the system "description" relation (pg_description) |
| * |
| * 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 function is identified by the OID of its pg_proc row |
| * plus the pg_class OID of table pg_proc. This allows unique identification |
| * of objects without assuming that OIDs are unique across tables. |
| * |
| * Since attributes don't have OIDs of their own, we identify an attribute |
| * comment by the objoid+classoid of its parent table, plus an "objsubid" |
| * giving the attribute column number. "objsubid" must be zero in a comment |
| * for a table itself, so that it is distinct from any column comment. |
| * Currently, objsubid is unused and zero for all other kinds of objects, |
| * but perhaps it might be useful someday to associate comments with |
| * constituent elements of other kinds of objects (arguments of a function, |
| * for example). |
| * |
| * |
| * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group |
| * Portions Copyright (c) 1994, Regents of the University of California |
| * |
| * $PostgreSQL: pgsql/src/include/catalog/pg_description.h,v 1.24 2006/03/05 15:58:54 momjian Exp $ |
| * |
| * NOTES |
| * the genbki.sh script reads this file and generates .bki |
| * information from the DATA() statements. |
| * |
| * XXX do NOT break up DATA() statements into multiple lines! |
| * the scripts are not as smart as you might think... |
| * |
| *------------------------------------------------------------------------- |
| */ |
| #ifndef PG_DESCRIPTION_H |
| #define PG_DESCRIPTION_H |
| |
| #include "catalog/genbki.h" |
| |
| /* TIDYCAT_BEGINFAKEDEF |
| |
| CREATE TABLE pg_description |
| with (oid=false, relid=2609, toast_oid=2834, toast_index=2835, content=MASTER_ONLY) |
| ( |
| objoid oid, |
| classoid oid, |
| objsubid integer, |
| description text |
| ); |
| |
| create unique index on pg_description(objoid, classoid, objsubid) with (indexid=2675, CamelCase=DescriptionObj); |
| |
| alter table pg_description add fk classoid on pg_class(oid); |
| |
| TIDYCAT_ENDFAKEDEF |
| */ |
| |
| /* ---------------- |
| * pg_description definition. cpp turns this into |
| * typedef struct FormData_pg_description |
| * ---------------- |
| */ |
| #define DescriptionRelationId 2609 |
| |
| CATALOG(pg_description,2609) BKI_WITHOUT_OIDS |
| { |
| Oid objoid; /* OID of object itself */ |
| Oid classoid; /* OID of table containing object */ |
| int4 objsubid; /* column number, or 0 if not used */ |
| text description; /* description of object */ |
| } FormData_pg_description; |
| |
| /* ---------------- |
| * Form_pg_description corresponds to a pointer to a tuple with |
| * the format of pg_description relation. |
| * ---------------- |
| */ |
| typedef FormData_pg_description *Form_pg_description; |
| |
| /* ---------------- |
| * compiler constants for pg_description |
| * ---------------- |
| */ |
| #define Natts_pg_description 4 |
| #define Anum_pg_description_objoid 1 |
| #define Anum_pg_description_classoid 2 |
| #define Anum_pg_description_objsubid 3 |
| #define Anum_pg_description_description 4 |
| |
| /* ---------------- |
| * initial contents of pg_description |
| * ---------------- |
| */ |
| |
| /* |
| * Because the contents of this table are taken from the other *.h files, |
| * there is no initialization here. The initial contents are extracted |
| * by genbki.sh and loaded during initdb. |
| */ |
| |
| #endif /* PG_DESCRIPTION_H */ |