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https://issues.apache.org/jira/browse/DRILL-848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14018192#comment-14018192
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Jacques Nadeau commented on DRILL-848:
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No query should ever hang. Please fix this so that it doesn't hang. A better
error message is a nice to have.
> sum() over a varchar column hangs sqlline
> -----------------------------------------
>
> Key: DRILL-848
> URL: https://issues.apache.org/jira/browse/DRILL-848
> Project: Apache Drill
> Issue Type: Bug
> Components: Functions - Drill
> Reporter: Chun Chang
> Fix For: 1.0.0-rc2
>
>
> #Wed May 28 10:41:14 PDT 2014
> git.commit.id.abbrev=01bf849
> If you do a sum over a varchar column, sqlline will hang:
> sqlline version 1.1.6
> 0: jdbc:drill:schema=dfs> select sum(c_groupby) from data;
> here c_groupby is a string column. This is over a parquet file.
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