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[GitHub] [spark] MrDLontheway opened a new pull request, #38893: [Spark-40099] Merge adjacent CaseWhen branches if their values are the same

MrDLontheway opened a new pull request, #38893:
URL: https://github.com/apache/spark/pull/38893

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   ### What changes were proposed in this pull request?
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   Merge adjacent CaseWhen branches if their values are the same
   
   ### Why are the changes needed?
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   Improvement of Optimized Logical Plan
   
   ### Does this PR introduce _any_ user-facing change?
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   no
   
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   add unit test


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[GitHub] [spark] github-actions[bot] commented on pull request #38893: [Spark-40099][SQL] Merge adjacent CaseWhen branches if their values are the same

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #38893:
URL: https://github.com/apache/spark/pull/38893#issuecomment-1499784158

   We're closing this PR because it hasn't been updated in a while. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable.
   If you'd like to revive this PR, please reopen it and ask a committer to remove the Stale tag!


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[GitHub] [spark] AmplabJenkins commented on pull request #38893: [Spark-40099] Merge adjacent CaseWhen branches if their values are the same

Posted by GitBox <gi...@apache.org>.
AmplabJenkins commented on PR #38893:
URL: https://github.com/apache/spark/pull/38893#issuecomment-1336269907

   Can one of the admins verify this patch?


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[GitHub] [spark] MrDLontheway commented on a diff in pull request #38893: [Spark-40099][SQL] Merge adjacent CaseWhen branches if their values are the same

Posted by GitBox <gi...@apache.org>.
MrDLontheway commented on code in PR #38893:
URL: https://github.com/apache/spark/pull/38893#discussion_r1049199875


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:
##########
@@ -639,6 +639,26 @@ object RemoveNoopOperators extends Rule[LogicalPlan] {
   }
 }
 
+/**
+ * Merge case condition expression with same value.
+ */
+object MergeConditionWithValue extends Rule[LogicalPlan] {

Review Comment:
   @wangyum  have any update ?



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[GitHub] [spark] MrDLontheway commented on a diff in pull request #38893: [Spark-40099][SQL] Merge adjacent CaseWhen branches if their values are the same

Posted by GitBox <gi...@apache.org>.
MrDLontheway commented on code in PR #38893:
URL: https://github.com/apache/spark/pull/38893#discussion_r1043227501


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:
##########
@@ -639,6 +639,26 @@ object RemoveNoopOperators extends Rule[LogicalPlan] {
   }
 }
 
+/**
+ * Merge case condition expression with same value.
+ */
+object MergeConditionWithValue extends Rule[LogicalPlan] {

Review Comment:
   this is 2000 branches run time
   <img width="1260" alt="image" src="https://user-images.githubusercontent.com/29403543/206430556-08ffe134-2d3e-48ab-bdb1-d941957869e1.png">
   



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[GitHub] [spark] MrDLontheway commented on a diff in pull request #38893: [Spark-40099][SQL] Merge adjacent CaseWhen branches if their values are the same

Posted by GitBox <gi...@apache.org>.
MrDLontheway commented on code in PR #38893:
URL: https://github.com/apache/spark/pull/38893#discussion_r1043227501


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:
##########
@@ -639,6 +639,26 @@ object RemoveNoopOperators extends Rule[LogicalPlan] {
   }
 }
 
+/**
+ * Merge case condition expression with same value.
+ */
+object MergeConditionWithValue extends Rule[LogicalPlan] {

Review Comment:
   this is 2000 branches run time
   <img width="1260" alt="image" src="https://user-images.githubusercontent.com/29403543/206430556-08ffe134-2d3e-48ab-bdb1-d941957869e1.png">
   



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[GitHub] [spark] MrDLontheway commented on pull request #38893: [Spark-40099][SQL] Merge adjacent CaseWhen branches if their values are the same

Posted by GitBox <gi...@apache.org>.
MrDLontheway commented on PR #38893:
URL: https://github.com/apache/spark/pull/38893#issuecomment-1340248439

   @wangyum 
   pls help review.


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[GitHub] [spark] wangyum commented on a diff in pull request #38893: [Spark-40099][SQL] Merge adjacent CaseWhen branches if their values are the same

Posted by GitBox <gi...@apache.org>.
wangyum commented on code in PR #38893:
URL: https://github.com/apache/spark/pull/38893#discussion_r1043133092


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:
##########
@@ -639,6 +639,26 @@ object RemoveNoopOperators extends Rule[LogicalPlan] {
   }
 }
 
+/**
+ * Merge case condition expression with same value.
+ */
+object MergeConditionWithValue extends Rule[LogicalPlan] {

Review Comment:
   Do you have this rule execution time if it has thousands of branches.



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[GitHub] [spark] MrDLontheway commented on a diff in pull request #38893: [Spark-40099][SQL] Merge adjacent CaseWhen branches if their values are the same

Posted by GitBox <gi...@apache.org>.
MrDLontheway commented on code in PR #38893:
URL: https://github.com/apache/spark/pull/38893#discussion_r1043247947


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:
##########
@@ -639,6 +639,26 @@ object RemoveNoopOperators extends Rule[LogicalPlan] {
   }
 }
 
+/**
+ * Merge case condition expression with same value.
+ */
+object MergeConditionWithValue extends Rule[LogicalPlan] {

Review Comment:
   @wangyum 
   this is rule execution time for 2000 branches 
   <img width="1316" alt="image" src="https://user-images.githubusercontent.com/29403543/206434948-6146d550-a1e0-4bc4-b410-27f3bbaf794a.png">
   



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[GitHub] [spark] MrDLontheway commented on a diff in pull request #38893: [Spark-40099][SQL] Merge adjacent CaseWhen branches if their values are the same

Posted by GitBox <gi...@apache.org>.
MrDLontheway commented on code in PR #38893:
URL: https://github.com/apache/spark/pull/38893#discussion_r1043247947


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:
##########
@@ -639,6 +639,26 @@ object RemoveNoopOperators extends Rule[LogicalPlan] {
   }
 }
 
+/**
+ * Merge case condition expression with same value.
+ */
+object MergeConditionWithValue extends Rule[LogicalPlan] {

Review Comment:
   this is rule execution time for 2000 branches 
   <img width="1316" alt="image" src="https://user-images.githubusercontent.com/29403543/206434948-6146d550-a1e0-4bc4-b410-27f3bbaf794a.png">
   



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[GitHub] [spark] github-actions[bot] closed pull request #38893: [Spark-40099][SQL] Merge adjacent CaseWhen branches if their values are the same

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] closed pull request #38893: [Spark-40099][SQL] Merge adjacent CaseWhen branches if their values are the same
URL: https://github.com/apache/spark/pull/38893


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