From 3769fa5fc64298143cf535c8a06921793598e458 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Tue, 10 Apr 2012 21:42:46 -0400 Subject: [PATCH] Make pg_tablespace_location(0) return the database's default tablespace. This definition is convenient when applying the function to the reltablespace column of pg_class, since that's what zero means there; and it doesn't interfere with any other plausible use of the function. Per gripe from Bruce Momjian. --- src/backend/utils/adt/misc.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/src/backend/utils/adt/misc.c b/src/backend/utils/adt/misc.c index 6a1b477147..6bd7d531bb 100644 --- a/src/backend/utils/adt/misc.c +++ b/src/backend/utils/adt/misc.c @@ -335,7 +335,15 @@ pg_tablespace_location(PG_FUNCTION_ARGS) int rllen; /* - * Return empty string for our default tablespaces + * It's useful to apply this function to pg_class.reltablespace, wherein + * zero means "the database's default tablespace". So, rather than + * throwing an error for zero, we choose to assume that's what is meant. + */ + if (tablespaceOid == InvalidOid) + tablespaceOid = MyDatabaseTableSpace; + + /* + * Return empty string for the cluster's default tablespaces */ if (tablespaceOid == DEFAULTTABLESPACE_OID || tablespaceOid == GLOBALTABLESPACE_OID)