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Disable single-repartition joins for append tables

pull/5359/head
Marco Slot 2021-10-07 20:05:34 +02:00
parent 6ff2083311
commit 2206e64e42
2 changed files with 18 additions and 7 deletions
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2
src/backend/distributed/planner/multi_join_order.c
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@ -1059,7 +1059,7 @@ SinglePartitionJoin(JoinOrderNode *currentJoinNode, TableEntry *candidateTable,
candidatePartitionMethod,
candidateTable);
}
else
else if (currentPartitionMethod == DISTRIBUTE_BY_RANGE)
{
return MakeJoinOrderNode(candidateTable,
SINGLE_RANGE_PARTITION_JOIN,

23
src/test/regress/expected/multi_explain.out
View File

@ -1070,11 +1070,14 @@ Aggregate
Task Count: 4
Tasks Shown: None, not supported for re-partition queries
-> MapMergeJob
Map Task Count: 1
Map Task Count: 4
Merge Task Count: 4
-> MapMergeJob
Map Task Count: 2
Merge Task Count: 1
Merge Task Count: 4
-> MapMergeJob
Map Task Count: 1
Merge Task Count: 4
-> MapMergeJob
Map Task Count: 1
Merge Task Count: 4
@ -1102,12 +1105,16 @@ EXPLAIN (COSTS FALSE, FORMAT JSON)
"Tasks Shown": "None, not supported for re-partition queries",
"Dependent Jobs": [
{
"Map Task Count": 1,
"Map Task Count": 4,
"Merge Task Count": 4,
"Dependent Jobs": [
{
"Map Task Count": 2,
"Merge Task Count": 1
"Merge Task Count": 4
},
{
"Map Task Count": 1,
"Merge Task Count": 4
}
]
},
@ -1154,12 +1161,16 @@ EXPLAIN (COSTS FALSE, FORMAT XML)
<Tasks-Shown>None, not supported for re-partition queries</Tasks-Shown>
<Dependent-Jobs>
<MapMergeJob>
<Map-Task-Count>1</Map-Task-Count>
<Map-Task-Count>4</Map-Task-Count>
<Merge-Task-Count>4</Merge-Task-Count>
<Dependent-Jobs>
<MapMergeJob>
<Map-Task-Count>2</Map-Task-Count>
<Merge-Task-Count>1</Merge-Task-Count>
<Merge-Task-Count>4</Merge-Task-Count>
</MapMergeJob>
<MapMergeJob>
<Map-Task-Count>1</Map-Task-Count>
<Merge-Task-Count>4</Merge-Task-Count>
</MapMergeJob>
</Dependent-Jobs>
</MapMergeJob>