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https://issues.apache.org/jira/browse/TAJO-386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi updated TAJO-386:
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Issue Type: New Feature (was: Sub-task)
Parent: (was: TAJO-362)
> Implement logarithm
> --------------------
>
> Key: TAJO-386
> URL: https://issues.apache.org/jira/browse/TAJO-386
> Project: Tajo
> Issue Type: New Feature
> Components: Function/UDF
> Reporter: Jae Young Lee
> Priority: Minor
> Labels: newbie
> Attachments: TAJO-386.patch
>
>
> - Implement 4 logarithm functions below:
> ln( x ) - Returns the natural logarithm of x
> log([b], x ) - Returns the logarithm of x with base b
> log10( x ) - Returns the logarithm of x with base 10
> log2( x ) - Returns the logarithm of x with base 2
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