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https://issues.apache.org/jira/browse/SPARK-3911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14169207#comment-14169207
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Apache Spark commented on SPARK-3911:
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User 'chenghao-intel' has created a pull request for this issue:
https://github.com/apache/spark/pull/2771
> HiveSimpleUdf can not be optimized in constant folding
> ------------------------------------------------------
>
> Key: SPARK-3911
> URL: https://issues.apache.org/jira/browse/SPARK-3911
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Cheng Hao
> Assignee: Cheng Hao
> Priority: Minor
>
> {panel}
> explain extended select cos(null) from src limit 1;
> {panel}
> It outputs
> {panel}
> Project [HiveSimpleUdf#org.apache.hadoop.hive.ql.udf.UDFCos(null) AS c_0#5]
> MetastoreRelation default, src, None
> == Optimized Logical Plan ==
> Limit 1
> Project [HiveSimpleUdf#org.apache.hadoop.hive.ql.udf.UDFCos(null) AS c_0#5]
> MetastoreRelation default, src, None
> == Physical Plan ==
> Limit 1
> Project [HiveSimpleUdf#org.apache.hadoop.hive.ql.udf.UDFCos(null) AS c_0#5]
> HiveTableScan [], (MetastoreRelation default, src, None), None
> {panel}
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