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Use rte->updatedCols to determine if partition column exists 

Use rte->updatedCols to determine if partition column exists in the
target list in case of UPDATE.

Commit on PG:
86dc90056dfdbd9d1b891718d2e5614e3e432f35
pg14_support_after_rebase
Sait Talha Nisanci 2021-08-19 08:49:29 +03:00
parent 9d73845580
commit 84b1f74939
1 changed files with 21 additions and 2 deletions
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23
src/backend/distributed/planner/multi_router_planner.c
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@ -641,9 +641,26 @@ ModifyPartialQuerySupported(Query *queryTree, bool multiShardQuery,
{
targetEntryPartitionColumn = false;
}
else if (targetEntry->resno == partitionColumn->varattno)
else
{
targetEntryPartitionColumn = true;
if (commandType == CMD_UPDATE) {
/*
* For
*/
RangeTblEntry* resultRTE = ExtractResultRelationRTE(queryTree);
/*
* FirstLowInvalidHeapAttributeNumber is added as an offset to rte->updatedCols.
* So we substract that to get the column no for an updated column that matches
* resultRTE->updatedcols.
*/
int updatedColNoWithOffset = partitionColumn->varattno - FirstLowInvalidHeapAttributeNumber;
if (bms_is_member(updatedColNoWithOffset, resultRTE->updatedCols)) {
targetEntryPartitionColumn = true;
}
}else if (targetEntry->resno == partitionColumn->varattno) {
targetEntryPartitionColumn = true;
}
}
/* skip resjunk entries: UPDATE adds some for ctid, etc. */
@ -662,6 +679,8 @@ ModifyPartialQuerySupported(Query *queryTree, bool multiShardQuery,
NULL, NULL);
}
//TODO:: targetEntry->resno is wrong here, we SHOULD think about
//TargetEntryChangesValue for update case based on 86dc90056dfdbd9d1b891718d2e5614e3e432f35.
if (commandType == CMD_UPDATE && targetEntryPartitionColumn &&
TargetEntryChangesValue(targetEntry, partitionColumn,
queryTree->jointree))