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https://issues.apache.org/jira/browse/CALCITE-3898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez resolved CALCITE-3898.
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Fix Version/s: 1.23.0
Resolution: Fixed
Fixed in
[c3147f477f843d283c43d1e858534d58a7174544|https://github.com/apache/calcite/commit/c3147f477f843d283c43d1e858534d58a7174544].
> RelOptPredicateList may generate incorrect map of constant values
> -----------------------------------------------------------------
>
> Key: CALCITE-3898
> URL: https://issues.apache.org/jira/browse/CALCITE-3898
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.23.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> The method relies on {{RexUtil.predicateConstants}} which in turn calls
> {{RexUtil.canAssignFrom}}. {{RexUtil.canAssignFrom}} is skipping any check on
> precision and scale. I observed the error in Hive when two VARCHAR types with
> different precision were given to the method, which was resulting on
> considering the result of the narrowing cast as the value of the reference.
> This lead to incorrect results.
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