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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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Meenakshi updated IMPALA-7027:
------------------------------
Description:
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
The Query succeeds is we remove the distinct clause or add set
enable_expr_rewrites=false;
was:
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 CLAIM_COMMENTS,CAST('' as
VARCHAR(100)) as CA_USER_ID FROM tablename limit 1
Where as the below query succeeds
Query 2> Success
SELECT DISTINCT CAST('' as VARCHAR(100)) as CLAIM_COMMENTS,CAST('' as
VARCHAR(101)) as CA_USER_ID FROM tablename limit 1
The Query succeeds is we remove the distinct clause or add set
enable_expr_rewrites=false;
> 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 2.9.0
> Reporter: Meenakshi
> Priority: Critical
>
> 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
> The Query succeeds is we remove the distinct clause or add set
> enable_expr_rewrites=false;
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