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Prevent assertion failure in contrib/pg_freespacemap.

2025年3月27日 17:20:23 +0000 (13:20 -0400)

Applying pg_freespacemap() to a relation lacking storage (such as a
view) caused an assertion failure, although there was no ill effect
in non-assert builds. Add an error check for that case.

Bug: #18866
Reported-by: Robins Tharakan <tharakan@gmail.com>
Author: Tender Wang <tndrwang@gmail.com>
Reviewed-by: Euler Taveira <euler@eulerto.com>
Discussion: https://postgr.es/m/18866-d68926d0f1c72d44@postgresql.org
Backpatch-through: 13

contrib/pg_freespacemap/pg_freespacemap.c patch | blob | blame | history

diff --git a/contrib/pg_freespacemap/pg_freespacemap.c b/contrib/pg_freespacemap/pg_freespacemap.c

index b82cab2d97ef4deed9736211398efba47986ad68..2de3c764e7940400d5109fa52d8b76a27eeab15b 100644 (file)

--- a/contrib/pg_freespacemap/pg_freespacemap.c

+++ b/contrib/pg_freespacemap/pg_freespacemap.c

@@ -11,6 +11,7 @@

#include "access/relation.h"

#include "funcapi.h"

#include "storage/freespace.h"

+#include "utils/rel.h"

PG_MODULE_MAGIC;

@@ -30,6 +31,13 @@ pg_freespace(PG_FUNCTION_ARGS)