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-rw-r--r--contrib/pg_freespacemap/pg_freespacemap.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/contrib/pg_freespacemap/pg_freespacemap.c b/contrib/pg_freespacemap/pg_freespacemap.c
index c0eac7a2016..610fc90b5ba 100644
--- a/contrib/pg_freespacemap/pg_freespacemap.c
+++ b/contrib/pg_freespacemap/pg_freespacemap.c
@@ -11,6 +11,7 @@
#include "access/relation.h"
#include "fmgr.h"
#include "storage/freespace.h"
+#include "utils/rel.h"
PG_MODULE_MAGIC_EXT(
.name = "pg_freespacemap",
@@ -33,6 +34,13 @@ pg_freespace(PG_FUNCTION_ARGS)
rel = relation_open(relid, AccessShareLock);
+ if (!RELKIND_HAS_STORAGE(rel->rd_rel->relkind))
+ ereport(ERROR,
+ (errcode(ERRCODE_WRONG_OBJECT_TYPE),
+ errmsg("relation \"%s\" does not have storage",
+ RelationGetRelationName(rel)),
+ errdetail_relkind_not_supported(rel->rd_rel->relkind)));
+
if (blkno < 0 || blkno > MaxBlockNumber)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),