Github user dongjoon-hyun commented on a diff in the pull request:
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/PropagateEmptyRelation.scala
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Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/13906#discussion_r69172328
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sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlanSuite.scala
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+/*
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Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/13906#discussion_r69171100
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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+/*
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Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/13906#discussion_r69171076
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/13906#discussion_r69141440
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sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlanSuite.scala
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Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/13906#discussion_r69141347
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sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlanSuite.scala
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Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/13906#discussion_r69140767
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sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlanSuite.scala
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Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/13906#discussion_r69140206
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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https://github.com/apache/spark/pull/13906#discussion_r69135765
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sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlanSuite.scala
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Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/13906#discussion_r69135496
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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Github user cloud-fan commented on a diff in the pull request:
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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https://github.com/apache/spark/pull/13906#discussion_r69131609
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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https://github.com/apache/spark/pull/13906#discussion_r69111733
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sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlanSuite.scala
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+/*
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https://github.com/apache/spark/pull/13906#discussion_r69111430
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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https://github.com/apache/spark/pull/13906#discussion_r69111287
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlanSuite.scala
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+/*
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Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/13906#discussion_r69111075
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlanSuite.scala
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https://github.com/apache/spark/pull/13906#discussion_r69110745
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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@@ -0,0 +1,70 @@
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Github user dongjoon-hyun commented on a diff in the pull request:
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--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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+/*
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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+/*
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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+/*
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--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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@@ -0,0 +1,49 @@
+/*
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--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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+/*
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--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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@@ -0,0 +1,49 @@
+/*
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--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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@@ -0,0 +1,49 @@
+/*
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https://github.com/apache/spark/pull/13906#discussion_r69064054
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlan.scala
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@@ -0,0 +1,49 @@
+/*
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https://github.com/apache/spark/pull/13906#discussion_r68839609
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1053,6 +1055,49 @@ object PruneFilters extends Rule[Logic
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--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1053,6 +1055,49 @@ object PruneFilters extends R
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1053,6 +1055,49 @@ object PruneFilters extends R
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1053,6 +1055,49 @@ object PruneFilters extends R
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1053,6 +1055,49 @@ object PruneFilters extends Rule[Logic
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--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1053,6 +1055,49 @@ object PruneFilters extends Rule[Logic
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--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlanSuite.scala
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@@ -0,0 +1,133 @@
+/*
+ * Licen
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1053,6 +1055,41 @@ object PruneFilters extends R
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--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1053,6 +1055,41 @@ object PruneFilters extends Rule[Logic
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--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlanSuite.scala
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@@ -0,0 +1,133 @@
+/*
+ * Licen
Github user rxin commented on a diff in the pull request:
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--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/CollapseEmptyPlanSuite.scala
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@@ -0,0 +1,133 @@
+/*
+ * Licensed to th
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https://github.com/apache/spark/pull/13906#discussion_r68495438
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1053,6 +1055,34 @@ object PruneFilters extends R
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
---
@@ -1053,6 +1055,34 @@ object PruneFilters extends R
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1053,6 +1055,34 @@ object PruneFilters extends Rule[Logic
GitHub user dongjoon-hyun opened a pull request:
https://github.com/apache/spark/pull/13906
[SPARK-16208][SQL] Add `CollapseEmptyPlan` optimizer
## What changes were proposed in this pull request?
This PR adds a new logical optimizer, `CollapseEmptyPlan`, to collapse a
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