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https://issues.apache.org/jira/browse/IMPALA-14422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Smith resolved IMPALA-14422.
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Fix Version/s: Impala 5.0.0
Resolution: Fixed
> Calcite planner: Crash on Union with underlying Project and Values nodes
> ------------------------------------------------------------------------
>
> Key: IMPALA-14422
> URL: https://issues.apache.org/jira/browse/IMPALA-14422
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Steve Carlin
> Priority: Major
> Fix For: Impala 5.0.0
>
>
> In version 1.37, for the query
> select 1 union all select 5000
> Calcite was creating the following RelNode structure:
> LogicalUnion
> LogicalValues (1), (5000)
> Calcite changed the behavior in 1.40 to ensure that all datatypes are
> matching. Now it produces:
> LogicalUnion
> LogicalProject(CAST 1 as SMALLINT)
> LogicalValues
> LogicalProject(CAST 5000 as SMALLINT)
> LogicalValues
> The introduction of the Project between Values exposed a bug in the
> ImpalaValuesRel class.
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