[jira] [Updated] (CALCITE-5414) Use DateTimeUtils to correctly convert between java.sql types and unix timestamps

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-5414?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated CALCITE-5414:
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    Labels: pull-request-available  (was: )

> Use DateTimeUtils to correctly convert between java.sql types and unix timestamps
> ---------------------------------------------------------------------------------
>
>                 Key: CALCITE-5414
>                 URL: https://issues.apache.org/jira/browse/CALCITE-5414
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>            Reporter: Gregory Hart
>            Assignee: Gregory Hart
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Converting java.sql types to unix timestamps requires extra steps to also convert to the correct calendar. Unix timestamps should follow the proleptic Gregorian calendar as defined by ISO-8601. Java uses the standard Gregorian calendar for java.sql types and switches to the Julian calendar for dates before the Gregorian shift.
> The DateTimeUtils class in Avatica correctly handles the calendar conversions. Calcite should use those methods since its own methods do not currently convert between calendars.



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