| /*------------------------------------------------------------------------- | |
| * | |
| * pg_depend.h | |
| * definition of the "dependency" system catalog (pg_depend) | |
| * | |
| * pg_depend has no preloaded contents, so there is no pg_depend.dat | |
| * file; dependencies for system-defined objects are loaded into it | |
| * on-the-fly during initdb. Most built-in objects are pinned anyway, | |
| * and hence need no explicit entries in pg_depend. | |
| * | |
| * NOTE: we do not represent all possible dependency pairs in pg_depend; | |
| * for example, there's not much value in creating an explicit dependency | |
| * from an attribute to its relation. Usually we make a dependency for | |
| * cases where the relationship is conditional rather than essential | |
| * (for example, not all triggers are dependent on constraints, but all | |
| * attributes are dependent on relations) or where the dependency is not | |
| * convenient to find from the contents of other catalogs. | |
| * | |
| * | |
| * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group | |
| * Portions Copyright (c) 1994, Regents of the University of California | |
| * | |
| * src/include/catalog/pg_depend.h | |
| * | |
| * NOTES | |
| * The Catalog.pm module reads this file and derives schema | |
| * information. | |
| * | |
| *------------------------------------------------------------------------- | |
| */ | |
| /* ---------------- | |
| * pg_depend definition. cpp turns this into | |
| * typedef struct FormData_pg_depend | |
| * ---------------- | |
| */ | |
| CATALOG(pg_depend,2608,DependRelationId) | |
| { | |
| /* | |
| * Identification of the dependent (referencing) object. | |
| */ | |
| Oid classid BKI_LOOKUP(pg_class); /* OID of table containing | |
| * object */ | |
| Oid objid; /* OID of object itself */ | |
| int32 objsubid; /* column number, or 0 if not used */ | |
| /* | |
| * Identification of the independent (referenced) object. | |
| */ | |
| Oid refclassid BKI_LOOKUP(pg_class); /* OID of table containing | |
| * object */ | |
| Oid refobjid; /* OID of object itself */ | |
| int32 refobjsubid; /* column number, or 0 if not used */ | |
| /* | |
| * Precise semantics of the relationship are specified by the deptype | |
| * field. See DependencyType in catalog/dependency.h. | |
| */ | |
| char deptype; /* see codes in dependency.h */ | |
| } FormData_pg_depend; | |
| /* ---------------- | |
| * Form_pg_depend corresponds to a pointer to a row with | |
| * the format of pg_depend relation. | |
| * ---------------- | |
| */ | |
| typedef FormData_pg_depend *Form_pg_depend; | |
| DECLARE_INDEX(pg_depend_depender_index, 2673, DependDependerIndexId, on pg_depend using btree(classid oid_ops, objid oid_ops, objsubid int4_ops)); | |
| DECLARE_INDEX(pg_depend_reference_index, 2674, DependReferenceIndexId, on pg_depend using btree(refclassid oid_ops, refobjid oid_ops, refobjsubid int4_ops)); | |