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https://issues.apache.org/jira/browse/IMPALA-14405?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18059968#comment-18059968
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Steve Carlin commented on IMPALA-14405:
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There is still a little work to do here.
select count(*) from tbl will produce the label 'expr$0' by default, but the
workaround is to use an alias
> Calcite planner: labels for expressions not matching original planner
> ---------------------------------------------------------------------
>
> Key: IMPALA-14405
> URL: https://issues.apache.org/jira/browse/IMPALA-14405
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Steve Carlin
> Assignee: Steve Carlin
> Priority: Major
>
> The following query:
> select 1 + 1
> was returning $expr0 for the column label. This needs to match the original
> planner which has
> 1 + 1
> as the label.
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