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https://issues.apache.org/jira/browse/DRILL-2557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14492905#comment-14492905
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Mehant Baid commented on DRILL-2557:
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We should give a better error message that coalesce with no arguments is not
supported. Marking this as minor.
> COALESCE function returns ArrayIndexOutOfBoundsException when no arguments
> are passed in
> ----------------------------------------------------------------------------------------
>
> Key: DRILL-2557
> URL: https://issues.apache.org/jira/browse/DRILL-2557
> Project: Apache Drill
> Issue Type: Bug
> Components: Functions - Drill
> Affects Versions: 0.8.0
> Reporter: Victoria Markman
> Assignee: Mehant Baid
> Fix For: 0.9.0
>
>
> {code}
> 0: jdbc:drill:schema=dfs> select coalesce() from j2;
> Query failed: ArrayIndexOutOfBoundsException: -1
> Error: exception while executing query: Failure while executing query.
> (state=,code=0)
> {code}
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