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https://issues.apache.org/jira/browse/CALCITE-2556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16613664#comment-16613664
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Vladimir Sitnikov commented on CALCITE-2556:
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{quote}Where does the responsibility stop?{quote}
What do you mean by "stop"?
For instance, {{RexSimplify}} will hardly be able to fold "dynamic params"
and/or "inputs".
On the other hand, something like {{RelOptRule}} could identify that a given
"dynamic param" is a **runtime** constant, so it could use that extra info to
do more folding.
{{ReduceExpressionsRule}} uses {{RexSimplify}}.
That is basically the same code.
> RexSimplify: not(trueLiteral) could be simplified to false
> ----------------------------------------------------------
>
> Key: CALCITE-2556
> URL: https://issues.apache.org/jira/browse/CALCITE-2556
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.17.0
> Reporter: Vladimir Sitnikov
> Assignee: Julian Hyde
> Priority: Major
>
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