Prevent assertion failure in contrib/pg_freespacemap.
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
Branch
------
REL_14_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/5ff827389e7739c05888218bd9cd123f0b9b3122
Modified Files
--------------
contrib/pg_freespacemap/pg_freespacemap.c | 7 +++++++
1 file changed, 7 insertions(+)
