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https://issues.apache.org/jira/browse/CALCITE-3785?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated CALCITE-3785:
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Labels: pull-request-available (was: )
> HepPlanner.belongToDag() doesn't have to use mapDigestToVertex
> --------------------------------------------------------------
>
> Key: CALCITE-3785
> URL: https://issues.apache.org/jira/browse/CALCITE-3785
> Project: Calcite
> Issue Type: Bug
> Reporter: Xiening Dai
> Priority: Major
> Labels: pull-request-available
>
> To test whether or not a vertex belongs to DAG, we can simply do
> graph.vertexSet().contains(vertex); There's no need to look up in
> mapDigestToVertex map, which incurs overhead of creating the map key. This
> problem was amplified by CALCITE-3713.
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