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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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Jae Young Lee updated TAJO-386:
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Description:
- 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
was:
- 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
> Implement logarithm
> --------------------
>
> Key: TAJO-386
> URL: https://issues.apache.org/jira/browse/TAJO-386
> Project: Tajo
> Issue Type: Sub-task
> Components: operator/function/udf
> Reporter: Jae Young Lee
> Assignee: Jae Young Lee
> Priority: Minor
>
> - 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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