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https://issues.apache.org/jira/browse/SPARK-48472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17855742#comment-17855742
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Mihailo Aleksic commented on SPARK-48472:
-----------------------------------------
Working on this
> Enable reflect expressions with collated strings
> ------------------------------------------------
>
> Key: SPARK-48472
> URL: https://issues.apache.org/jira/browse/SPARK-48472
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Mihailo Milosevic
> Priority: Major
> Labels: pull-request-available
>
> As a movement to collated world, we need to make sure all expressions are
> supported by appropriate collations. Using expression walker testing
> `CallMethodViaReflection` was found to be erroneous. This expression is used
> as a replacement for all reflection methods and needs to be improved. This
> ticket needs to update methods of this expression. Relevant code could be
> found in these files: `CallMethodViaReflection.scala`, `TypeCoercion.scala`,
> `AnsiTypeCoercion.scala`, `CollationTypeCasts.scala`, and for testing
> `Collation*Suite.scala` files.
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