Disallow MERGE cleanly for foreign partitions
While directly targetting a foreign table with MERGE was already
expressly forbidden, we failed to catch the case of a partitioned table
that has a foreign table as a partition; and the result if you try is an
incomprehensible error. Fix that by adding a specific check.
Backpatch to 15.
Reported-by: Tatsuhiro Nakamori <bt22nakamorit@oss.nttdata.com>
Discussion: https://postgr.es/m/bt22nakamorit@oss.nttdata.com
Branch
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REL_15_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/16d11d68437a6a37af1fea08d4a29ef463f0d62c
Modified Files
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contrib/postgres_fdw/expected/postgres_fdw.out | 5 +++++
contrib/postgres_fdw/sql/postgres_fdw.sql | 4 ++++
src/backend/optimizer/plan/createplan.c | 20 ++++++++++++++++++++
3 files changed, 29 insertions(+)