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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, candidatePartitionMethod,
candidateTable); candidateTable);
} }
else else if (currentPartitionMethod == DISTRIBUTE_BY_RANGE)
{ {
return MakeJoinOrderNode(candidateTable, return MakeJoinOrderNode(candidateTable,
SINGLE_RANGE_PARTITION_JOIN, SINGLE_RANGE_PARTITION_JOIN,

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

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