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author | Herman van Hovell <hvanhovell@databricks.com> | 2016-11-28 02:56:26 -0800 |
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committer | Herman van Hovell <hvanhovell@databricks.com> | 2016-11-28 02:56:26 -0800 |
commit | 454b8049916a0353772a0ea5cfe14b62cbd81df4 (patch) | |
tree | 95130442a7687844e76f6aca6e3553c8027f396c /sql/catalyst/src | |
parent | 87141622ee6b11ac177f68f58d0dc5f8b9a9f948 (diff) | |
download | spark-454b8049916a0353772a0ea5cfe14b62cbd81df4.tar.gz spark-454b8049916a0353772a0ea5cfe14b62cbd81df4.tar.bz2 spark-454b8049916a0353772a0ea5cfe14b62cbd81df4.zip |
[SPARK-18604][SQL] Make sure CollapseWindow returns the attributes in the same order.
## What changes were proposed in this pull request?
The `CollapseWindow` optimizer rule changes the order of output attributes. This modifies the output of the plan, which the optimizer cannot do. This also breaks things like `collect()` for which we use a `RowEncoder` that assumes that the output attributes of the executed plan are equal to those outputted by the logical plan.
## How was this patch tested?
I have updated an incorrect test in `CollapseWindowSuite`.
Author: Herman van Hovell <hvanhovell@databricks.com>
Closes #16027 from hvanhovell/SPARK-18604.
Diffstat (limited to 'sql/catalyst/src')
2 files changed, 9 insertions, 6 deletions
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala index 6ba8b33b3f..2679e026bb 100644 --- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala +++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala @@ -545,7 +545,7 @@ object CollapseRepartition extends Rule[LogicalPlan] { object CollapseWindow extends Rule[LogicalPlan] { def apply(plan: LogicalPlan): LogicalPlan = plan transformUp { case w @ Window(we1, ps1, os1, Window(we2, ps2, os2, grandChild)) if ps1 == ps2 && os1 == os2 => - w.copy(windowExpressions = we1 ++ we2, child = grandChild) + w.copy(windowExpressions = we2 ++ we1, child = grandChild) } } diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseWindowSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseWindowSuite.scala index 797076e55c..3f7d1d9fd9 100644 --- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseWindowSuite.scala +++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseWindowSuite.scala @@ -46,12 +46,15 @@ class CollapseWindowSuite extends PlanTest { .window(Seq(sum(b).as('sum_b)), partitionSpec1, orderSpec1) .window(Seq(avg(b).as('avg_b)), partitionSpec1, orderSpec1) - val optimized = Optimize.execute(query.analyze) + val analyzed = query.analyze + val optimized = Optimize.execute(analyzed) + assert(analyzed.output === optimized.output) + val correctAnswer = testRelation.window(Seq( - avg(b).as('avg_b), - sum(b).as('sum_b), - max(a).as('max_a), - min(a).as('min_a)), partitionSpec1, orderSpec1) + min(a).as('min_a), + max(a).as('max_a), + sum(b).as('sum_b), + avg(b).as('avg_b)), partitionSpec1, orderSpec1) comparePlans(optimized, correctAnswer) } |