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https://issues.apache.org/jira/browse/CALCITE-5943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jiajun Xie closed CALCITE-5943.
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Resolution: Duplicate
> RelMdSelectivity can return more precise selectivity for Sample
> ---------------------------------------------------------------
>
> Key: CALCITE-5943
> URL: https://issues.apache.org/jira/browse/CALCITE-5943
> Project: Calcite
> Issue Type: Improvement
> Reporter: Jiajun Xie
> Assignee: Jiajun Xie
> Priority: Minor
>
> For the SQL
> {code:java}
> select * from emp tablesample bernoulli(50) {code}
> selectivity is 1.0, maybe 0.5 will be better.
>
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