diff options
| author | Dean Rasheed <dean.a.rasheed@gmail.com> | 2025-03-29 09:52:18 +0000 |
|---|---|---|
| committer | Dean Rasheed <dean.a.rasheed@gmail.com> | 2025-03-29 09:52:18 +0000 |
| commit | 14a33d3f0ae6dcbe9b91d33f64b795c2aef6a870 (patch) | |
| tree | 20f1861efa70fbcca348ded79000dee1ff004d7b /src/backend/executor | |
| parent | 0e86bad380997b3b6d39191df31ad7c1945ab389 (diff) | |
Fix MERGE with DO NOTHING actions into a partitioned table.
ExecInitPartitionInfo() duplicates much of the logic in
ExecInitMerge(), except that it failed to handle DO NOTHING
actions. This would cause an "unknown action in MERGE WHEN clause"
error if a MERGE with any DO NOTHING actions attempted to insert into
a partition not already initialised by ExecInitModifyTable().
Bug: #18871
Reported-by: Alexander Lakhin <exclusion@gmail.com>
Author: Tender Wang <tndrwang@gmail.com>
Reviewed-by: Gurjeet Singh <gurjeet@singh.im>
Discussion: https://postgr.es/m/18871-b44e3c96de3bd2e8%40postgresql.org
Backpatch-through: 15
Diffstat (limited to 'src/backend/executor')
| -rw-r--r-- | src/backend/executor/execPartition.c | 4 | ||||
| -rw-r--r-- | src/backend/executor/nodeModifyTable.c | 2 |
2 files changed, 4 insertions, 2 deletions
diff --git a/src/backend/executor/execPartition.c b/src/backend/executor/execPartition.c index 105753cd2d1..2fe21b7f2de 100644 --- a/src/backend/executor/execPartition.c +++ b/src/backend/executor/execPartition.c @@ -871,7 +871,7 @@ ExecInitPartitionInfo(ModifyTableState *mtstate, EState *estate, * reference and make copy for this relation, converting stuff that * references attribute numbers to match this relation's. * - * This duplicates much of the logic in ExecInitMerge(), so something + * This duplicates much of the logic in ExecInitMerge(), so if something * changes there, look here too. */ if (node && node->operation == CMD_MERGE) @@ -941,6 +941,8 @@ ExecInitPartitionInfo(ModifyTableState *mtstate, EState *estate, NULL); break; case CMD_DELETE: + case CMD_NOTHING: + /* Nothing to do */ break; default: diff --git a/src/backend/executor/nodeModifyTable.c b/src/backend/executor/nodeModifyTable.c index 56ef8815d2a..1b7379c97a4 100644 --- a/src/backend/executor/nodeModifyTable.c +++ b/src/backend/executor/nodeModifyTable.c @@ -3424,7 +3424,7 @@ ExecInitMerge(ModifyTableState *mtstate, EState *estate) case CMD_NOTHING: break; default: - elog(ERROR, "unknown operation"); + elog(ERROR, "unknown action in MERGE WHEN clause"); break; } } |