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https://issues.apache.org/jira/browse/SPARK-22155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon updated SPARK-22155:
---------------------------------
Labels: bulk-closed (was: )
> Generates a simple default alias for the function in select
> -----------------------------------------------------------
>
> Key: SPARK-22155
> URL: https://issues.apache.org/jira/browse/SPARK-22155
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Lijia Liu
> Priority: Minor
> Labels: bulk-closed
>
> When execute some query witch has function in select clause, Spark use
> Pretty SQL as default alias.
> But, Consider the following case:
> {code:java}
> create table tmp1
> As
> Select func(a, b)
> From tb1;
> create table tmp2
> As
> Select func(a, b)
> From tb2;
> Insert overwrite table tb3
> select *
> From
> tb1 a
> Union
> Tb2 b;
> {code}
> Create table will fail due to func(a, b) has comma. Therefore, we can use
> simple alias refer to hive.
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