Github user dbtsai commented on a diff in the pull request:
https://github.com/apache/spark/pull/21904#discussion_r206333426
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
---
@@ -416,6 +450,12 @@ object SimplifyConditionals
Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/21904#discussion_r206318942
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
---
@@ -416,6 +450,12 @@ object SimplifyConditionals
Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/21904#discussion_r206319701
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
---
@@ -416,6 +450,12 @@ object SimplifyConditionals
Github user dbtsai commented on a diff in the pull request:
https://github.com/apache/spark/pull/21904#discussion_r205963712
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
---
@@ -416,6 +416,29 @@ object SimplifyConditionals
Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/21904#discussion_r205958402
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
---
@@ -416,6 +416,29 @@ object SimplifyConditionals
Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/21904#discussion_r205958393
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
---
@@ -416,6 +416,29 @@ object SimplifyConditionals
Github user mgaido91 commented on a diff in the pull request:
https://github.com/apache/spark/pull/21904#discussion_r205947535
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
---
@@ -416,6 +416,29 @@ object SimplifyConditionals
Github user mgaido91 commented on a diff in the pull request:
https://github.com/apache/spark/pull/21904#discussion_r205947481
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
---
@@ -416,6 +416,29 @@ object SimplifyConditionals
Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/21904#discussion_r205925217
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
---
@@ -416,6 +416,29 @@ object SimplifyConditionals
GitHub user dbtsai opened a pull request:
https://github.com/apache/spark/pull/21904
[SPARK-24953] [SQL] Prune a branch in `CaseWhen` if previously seen
## What changes were proposed in this pull request?
If a condition in a branch is previously seen, this branch can be
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