Thread: pgsql: Fix bug in cbc127917 to handle nested Append correctly
Fix bug in cbc127917 to handle nested Append correctly A non-leaf partition with a subplan that is an Append node was omitted from PlannedStmt.unprunableRelids because it was mistakenly included in PlannerGlobal.prunableRelids due to the way PartitionedRelPruneInfo.leafpart_rti_map[] is constructed. This happened when a non-leaf partition used an unflattened Append or MergeAppend. As a result, ExecGetRangeTableRelation() reported an error when called from CreatePartitionPruneState() to process the partition's own PartitionPruneInfo, since it was treated as prunable when it should not have been. Reported-by: Alexander Lakhin <exclusion@gmail.com> (via sqlsmith) Diagnosed-by: Tender Wang <tndrwang@gmail.com> Reviewed-by: Tender Wang <tndrwang@gmail.com> Discussion: https://postgr.es/m/74839af6-aadc-4f60-ae77-ae65f94bf607@gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/cbb9086c9ef64b020cb9036f50afc14644bbf734 Modified Files -------------- src/backend/executor/execPartition.c | 13 +++++--- src/backend/partitioning/partprune.c | 9 ++++- src/test/regress/expected/partition_prune.out | 48 +++++++++++++++++++++++++++ src/test/regress/sql/partition_prune.sql | 12 +++++++ 4 files changed, 77 insertions(+), 5 deletions(-)