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https://issues.apache.org/jira/browse/CALCITE-5431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17654616#comment-17654616
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Julian Hyde commented on CALCITE-5431:
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[~liyafan], [~337361...@qq.com], Can this be closed as a duplicate of
CALCITE-4351?
> Method RelMdUtil$numDistinctVals() wrongly return zero if the method input
> domainSize is a very large value
> -----------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-5431
> URL: https://issues.apache.org/jira/browse/CALCITE-5431
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.33.0
> Reporter: Yunhong Zheng
> Priority: Major
> Fix For: 1.33.0
>
>
> Method {{RelMdUtil$numDistinctVals()}} wrongly return zero if the method
> input {{domainSize}} is a very large value. If {{domainSize}} is a very large
> value (like 2 x 10^16), Math.log(1.0 - 1.0 / dSize) will return 0, and
> {{domainSize}} will be set to 0, which is unreasonable in this scenario.
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