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https://issues.apache.org/jira/browse/HIVE-5581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832318#comment-13832318
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Teddy Choi commented on HIVE-5581:
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I wrote vectorized versions of UDFYear, UDFMonth, UDFDayOfMonth, UDFHour,
UDFMinute, UDFSecond, UDFWeekOfYear.
There still remain more functions that use TimestampWritable type. So I could
write more of them.
* Date-related: UDFDate, UDFDateSub, UDFDateAdd, UDFDateDiff
* Conversion-related: UDFToBoolean, UDFToByte, UDFToFloat, UDFToInteger,
UDFToLong, UDFToShort, UDFToString
However, there are no vectorized date/datesub/toboolean... for long arguments
yet. Should I write them now or later?
> Implement vectorized year/month/day... etc. for string arguments
> ----------------------------------------------------------------
>
> Key: HIVE-5581
> URL: https://issues.apache.org/jira/browse/HIVE-5581
> Project: Hive
> Issue Type: Sub-task
> Components: Query Processor
> Affects Versions: 0.13.0
> Reporter: Eric Hanson
> Assignee: Teddy Choi
> Attachments: HIVE-5581.1.patch.txt, HIVE-5581.2.patch,
> HIVE-5581.3.patch, HIVE-5581.4.patch, HIVE-5581.5.patch, HIVE-5581.5.patch,
> HIVE-5581.6.patch
>
>
> Functions year(), month(), day(), weekofyear(), hour(), minute(), second()
> need to be implemented for string arguments in vectorized mode.
> They already work for timestamp arguments.
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