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https://issues.apache.org/jira/browse/SPARK-5383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-5383.
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Resolution: Fixed
Fix Version/s: 1.3.0
Issue resolved by pull request 4186
[https://github.com/apache/spark/pull/4186]
> support alias for udfs with multi output columns
> ------------------------------------------------
>
> Key: SPARK-5383
> URL: https://issues.apache.org/jira/browse/SPARK-5383
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.2.0
> Reporter: wangfei
> Fix For: 1.3.0
>
>
> when a udf output multi columns, now we can not use alias for them in
> spark-sql, see this flowing sql:
> select stack(1, key, value, key, value) as (a, b, c, d) from src limit 5;
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