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https://issues.apache.org/jira/browse/IMPALA-7027?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-7027:
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Target Version: Impala 3.2.0, Impala 2.13.0 (was: Impala 2.13.0, Impala
3.1.0)
> Multiple Cast to Varchar with different limit fails with "AnalysisException:
> null CAUSED BY: IllegalArgumentException: "
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: IMPALA-7027
> URL: https://issues.apache.org/jira/browse/IMPALA-7027
> Project: IMPALA
> Issue Type: Bug
> Components: Frontend
> Affects Versions: Impala 2.8.0, Impala 2.9.0, Impala 2.10.0, Impala
> 2.11.0, Impala 3.0, Impala 2.12.0
> Reporter: Meenakshi
> Priority: Major
> Labels: planner, regression
>
> If we have multiple cast of '' to varchar statements in a impala query which
> has a distinct like below, the query breaks for scenario when the cast to
> varchar limit in the SQL is lower than the previous cast.
>
> Query 1> Fails with " AnalysisException: null CAUSED BY:
> IllegalArgumentException: targetType=VARCHAR(100) type=VARCHAR(101)"
> SELECT DISTINCT CAST('' as VARCHAR(101)) as CL_COMMENTS,CAST('' as
> VARCHAR(100)) as CL_USER_ID FROM tablename limit 1
> Where as the below query succeeds
> Query 2> Success
> SELECT DISTINCT CAST('' as VARCHAR(100)) as CL_COMMENTS,CAST('' as
> VARCHAR(101)) as CL_USER_ID FROM tablename limit 1
> *Workaround*
> SET ENABLE_EXPR_REWRITES=false;
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