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https://issues.apache.org/jira/browse/SPARK-18271?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan closed SPARK-18271.
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Resolution: Won't Fix
> hash udf in HiveSessionCatalog.hiveFunctions seq is redundant
> -------------------------------------------------------------
>
> Key: SPARK-18271
> URL: https://issues.apache.org/jira/browse/SPARK-18271
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.1
> Reporter: Song Jun
> Priority: Minor
>
> when lookupfunction in HiveSessionCatalog, first look up in spark's build-in
> functionRegistry, if it not existed, then look up the Hive'S build-in
> functions which are listed in Seq(hiveFunctions).
> But the [hash] function is already in spark's build-in functionRegistry list,
> so it will never to go to look up in Hive's hiveFunctions list, so the [hash]
> function which is in Hive's hiveFunctions is redundant, we can remove it.
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