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[GitHub] [spark] ulysses-you opened a new pull request #35208: [SPARK-37904][SQL] Improve RebalancePartitions in rules of Optimizer
ulysses-you opened a new pull request #35208:
URL: https://github.com/apache/spark/pull/35208
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### What changes were proposed in this pull request?
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Improve `RebalancePartitions` in following rules:
- `NestedColumnAliasing`
- `CollapseRepartition `
- `EliminateSorts`
- `FoldablePropagation`
- `PropagateEmptyRelationBase`
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After SPARK-37267, we support do optimize rebalance partitions in everywhere of plan rather than limit to the root node. So It should make sense to also let `RebalancePartitions` work in all rules of Optimizer like `Repartition` and `RepartitionByExpression` did.
### Does this PR introduce _any_ user-facing change?
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no
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Add test in:
- `NestedColumnAliasingSuite`
- `CollapseRepartitionSuite`
- `EliminateSortsBeforeRepartitionSuite`
- `FoldablePropagationSuite`
- `PropagateEmptyRelationSuite`
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[GitHub] [spark] ulysses-you commented on pull request #35208: [SPARK-37904][SQL] Improve RebalancePartitions in rules of Optimizer
Posted by GitBox <gi...@apache.org>.
ulysses-you commented on pull request #35208:
URL: https://github.com/apache/spark/pull/35208#issuecomment-1013081584
cc @cloud-fan @viirya
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[GitHub] [spark] ulysses-you commented on a change in pull request #35208: [SPARK-37904][SQL] Improve RebalancePartitions in rules of Optimizer
Posted by GitBox <gi...@apache.org>.
ulysses-you commented on a change in pull request #35208:
URL: https://github.com/apache/spark/pull/35208#discussion_r785271933
##########
File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/trees/TreePatterns.scala
##########
@@ -111,6 +111,7 @@ object TreePattern extends Enumeration {
val PROJECT: Value = Value
val RELATION_TIME_TRAVEL: Value = Value
val REPARTITION_OPERATION: Value = Value
+ val REBALANCE: Value = Value
Review comment:
changed to `REBALANCE_PARTITIONS`
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[GitHub] [spark] viirya commented on a change in pull request #35208: [SPARK-37904][SQL] Improve RebalancePartitions in rules of Optimizer
Posted by GitBox <gi...@apache.org>.
viirya commented on a change in pull request #35208:
URL: https://github.com/apache/spark/pull/35208#discussion_r785058052
##########
File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/trees/TreePatterns.scala
##########
@@ -111,6 +111,7 @@ object TreePattern extends Enumeration {
val PROJECT: Value = Value
val RELATION_TIME_TRAVEL: Value = Value
val REPARTITION_OPERATION: Value = Value
+ val REBALANCE: Value = Value
Review comment:
nit: REBALANCE_PARTITION?
##########
File path: sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/PropagateEmptyRelationSuite.scala
##########
@@ -294,4 +294,20 @@ class PropagateEmptyRelationSuite extends PlanTest {
val expected = LocalRelation.fromExternalRows(Seq('a.int, 'b.int, 'c.int), Nil)
comparePlans(optimized, expected)
}
+
+ test("SPARK-37904: Improve rebalance in PropagateEmptyRelation") {
+ val emptyRelation = LocalRelation($"a".int)
+
+ // test root node
+ val plan1 = emptyRelation.rebalance($"a").analyze
+ val optimized1 = Optimize.execute(plan1)
+ val expected1 = emptyRelation.analyze
Review comment:
nit: `expected1` and `expected2` are same. Maybe just `expected`.
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[GitHub] [spark] cloud-fan commented on pull request #35208: [SPARK-37904][SQL] Improve RebalancePartitions in rules of Optimizer
Posted by GitBox <gi...@apache.org>.
cloud-fan commented on pull request #35208:
URL: https://github.com/apache/spark/pull/35208#issuecomment-1014254560
thanks, merging to master!
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[GitHub] [spark] ulysses-you commented on pull request #35208: [SPARK-37904][SQL] Improve RebalancePartitions in rules of Optimizer
Posted by GitBox <gi...@apache.org>.
ulysses-you commented on pull request #35208:
URL: https://github.com/apache/spark/pull/35208#issuecomment-1014332697
thank you all !
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[GitHub] [spark] HyukjinKwon commented on pull request #35208: [SPARK-37904][SQL] Improve RebalancePartitions in rules of Optimizer
Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on pull request #35208:
URL: https://github.com/apache/spark/pull/35208#issuecomment-1013559787
cc @wangyum too
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[GitHub] [spark] cloud-fan closed pull request #35208: [SPARK-37904][SQL] Improve RebalancePartitions in rules of Optimizer
Posted by GitBox <gi...@apache.org>.
cloud-fan closed pull request #35208:
URL: https://github.com/apache/spark/pull/35208
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