pgsql: Prevent satisfies_hash_partition from crashing with VARIADIC NUL - Mailing list pgsql-committers

Prevent satisfies_hash_partition from crashing with VARIADIC NULL.

Commit f3b0897a1213f46b4d3a99a7f8ef3a4b32e03572 fixed some
related problems, but overlooked this one. That commit first
appeared in PostgreSQL 11, so back-patch to all supported branches.

Backpatch-through: 14
Discussion: http://postgr.es/m/CA+TgmobsvQw3F+KRYT83=N3teh8D2t-oPR=U06QDZJE3viCJRg@mail.gmail.com
Reviewed-by: Tender Wang <tndrwang@gmail.com>
Reviewed-by: Ewan Young <kdbase.hack@gmail.com>

Branch
------
REL_18_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/0c06ebf126a0d5df39d9c4298193d9887443ce93

Modified Files
--------------
src/backend/partitioning/partbounds.c   | 14 +++++++++++++-
src/test/regress/expected/hash_part.out |  7 +++++++
src/test/regress/sql/hash_part.sql      |  3 +++
3 files changed, 23 insertions(+), 1 deletion(-)