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https://issues.apache.org/jira/browse/CALCITE-3994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17108568#comment-17108568
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Jess Balint commented on CALCITE-3994:
--------------------------------------
that fixes it indeed. however it seems inconsistent with how the executor is
obtained just before calling {{reduceExpressionsInternal}}:
{code:java}
RexExecutor executor =
Util.first(cluster.getPlanner().getExecutor(), RexUtil.EXECUTOR)
{code}
why not pass this executor to the method?
> RexSimplify reduce concat calls with constant arguments
> -------------------------------------------------------
>
> Key: CALCITE-3994
> URL: https://issues.apache.org/jira/browse/CALCITE-3994
> Project: Calcite
> Issue Type: Improvement
> Affects Versions: 1.21.0
> Reporter: Jess Balint
> Priority: Minor
>
> would be good to implement support for string concat in RexSimplify
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