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https://issues.apache.org/jira/browse/CALCITE-3872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Liya Fan updated CALCITE-3872:
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Description: Support simplifying expression - ( - ( x ) ) as x. (was:
Support simplifying expression -(-( x ) ) as x.)
> Simplify expressions with unary minus
> -------------------------------------
>
> Key: CALCITE-3872
> URL: https://issues.apache.org/jira/browse/CALCITE-3872
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Liya Fan
> Priority: Minor
>
> Support simplifying expression - ( - ( x ) ) as x.
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