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https://issues.apache.org/jira/browse/TAJO-1191?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi resolved TAJO-1191.
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Resolution: Fixed
Fix Version/s: 0.9.1
I just committed to master branch. Thank you for your contribution.
> Change DateDatum timezone to UTC
> --------------------------------
>
> Key: TAJO-1191
> URL: https://issues.apache.org/jira/browse/TAJO-1191
> Project: Tajo
> Issue Type: Bug
> Reporter: Jaewoong Jung
> Assignee: Jaewoong Jung
> Priority: Minor
> Fix For: 0.9.1
>
>
> When DateDatum#plus adds a time value to the self instance, it meaninglessly
> converts the time value to a local time and then converts the added value
> back to UTC, which results in error when the user time zone has a negative
> time offset.
> ----
> (Update 12/2/2014)
> After some discussions with Hyunsik and Jong-young, we concluded that
> DateDatum values must be treated as UTC values, not local times. The actual
> code change is almost the same as I originally intended, but the overall
> direction of this issue and upcoming ones are focused on aligning Tajo's
> timezone policy for date/time data types with PostgreSQL's.
> Changing the summary accordingly.
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