Function RelationBuildLocalRelation

src/backend/utils/cache/relcache.c:3612–3878

* RelationBuildLocalRelation * Build a relcache entry for an about-to-be-created relation, * and enter it into the relcache. */

 *			and enter it into the relcache.
 */
Relation
RelationBuildLocalRelation(const char *relname,
						   Oid relnamespace,
						   TupleDesc tupDesc,
						   Oid relid,
						   Oid accessmtd,
						   Oid relfilenode,
						   Oid reltablespace,
						   bool shared_relation,
						   bool mapped_relation,
						   char relpersistence,
						   char relkind)
{
	Relation	rel;
	MemoryContext oldcxt;
	int			natts = tupDesc->natts;
	int			i;
	bool		has_not_null;
	bool		nailit;

	AssertArg(natts >= 0);

	/*
	 * check for creation of a rel that must be nailed in cache.
	 *
	 * XXX this list had better match the relations specially handled in
	 * RelationCacheInitializePhase2/3.
	 */
	switch (relid)
	{
		case DatabaseRelationId:
		case AuthIdRelationId:
		case AuthMemRelationId:
		case AuthTimeConstraintRelationId:
		case RelationRelationId:
		case AttributeRelationId:
		case ProcedureRelationId:
		case TypeRelationId:
			nailit = true;
			break;
		default:
			nailit = false;
			break;
	}

	/*
	 * check that hardwired list of shared rels matches what's in the
	 * bootstrap .bki file.  If you get a failure here during initdb, you
	 * probably need to fix IsSharedRelation() to match whatever you've done
	 * to the set of shared relations.
	 */
	if (shared_relation != IsSharedRelation(relid))
		elog(ERROR, "shared_relation flag for \"%s\" does not match IsSharedRelation(%u)",
			 relname, relid);

	/* Shared relations had better be mapped, too */
	Assert(mapped_relation || !shared_relation);