[
https://issues.apache.org/jira/browse/SPARK-23760?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Apache Spark reassigned SPARK-23760:
------------------------------------
Assignee: Apache Spark
> CodegenContext.withSubExprEliminationExprs should save/restore CSE state
> correctly
> ----------------------------------------------------------------------------------
>
> Key: SPARK-23760
> URL: https://issues.apache.org/jira/browse/SPARK-23760
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0, 2.2.1, 2.3.0
> Reporter: Kris Mok
> Assignee: Apache Spark
> Priority: Major
>
> There's a bug in {{CodegenContext.withSubExprEliminationExprs()}} that makes
> it effectively always clear the subexpression elimination state after it's
> called.
> The original intent of this function was that it should save the old state,
> set the given new state as current and perform codegen (invoke
> {{Expression.genCode()}}), and at the end restore the subexpression
> elimination state back to the old state. This ticket tracks a fix to actually
> implement the original intent.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
