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https://issues.apache.org/jira/browse/OPENJPA-3041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18136521#comment-18136521
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ASF subversion and git services commented on OPENJPA-3041:
----------------------------------------------------------

Commit bd8ccd3b9af64b36240af908f2603a3f0f8ec483 in openjpa's branch 
refs/heads/master from Richard Zowalla
[ https://gitbox.apache.org/repos/asf?p=openjpa.git;h=bd8ccd3b9 ]

[OPENJPA-3055] Keep the fraction of a second in EXTRACT(SECOND) on MySQL and 
MariaDB

EXTRACT(SECOND) on MySQL and MariaDB returns the whole seconds only. Add
EXTRACT(MICROSECOND) / 1000000.0 to keep the fraction, as OPENJPA-3041 did
for H2. A LocalTime parameter also lost its fraction, because it was bound
as a java.sql.Time; bind and read it as a LocalTime instead.


> H2: EXTRACT(SECOND) drops fractional seconds
> --------------------------------------------
>
>                 Key: OPENJPA-3041
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-3041
>             Project: OpenJPA
>          Issue Type: Sub-task
>            Reporter: Richard Zowalla
>            Assignee: Richard Zowalla
>            Priority: Major
>             Fix For: 4.2.0
>
>
> On H2, {{EXTRACT(SECOND FROM ts)}} returns 30.0 for a timestamp with 30.5 
> seconds. The Jakarta Persistence spec includes fractional seconds for SECOND. 
> Derby (since OPENJPA-3029) returns 30.5. Found while testing OPENJPA-3029.



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