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https://issues.apache.org/jira/browse/CALCITE-6224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17811287#comment-17811287
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Caican Cai commented on CALCITE-6224:
-------------------------------------
thank you
> Add LOG2 function (enabled in Mysql, Spark library)
> ---------------------------------------------------
>
> Key: CALCITE-6224
> URL: https://issues.apache.org/jira/browse/CALCITE-6224
> Project: Calcite
> Issue Type: New Feature
> Components: core
> Affects Versions: 1.36.0
> Reporter: Caican Cai
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.37.0
>
>
> The log2 function is supported in many databases, such as spark, mysql,
> postgres, etc.
> {code:java}
> > SELECT log2(2);
> 1.0 {code}
> links：
> [https://spark.apache.org/docs/3.4.0/api/sql/index.html#log2]
> https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_log2
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