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https://issues.apache.org/jira/browse/BEAM-10340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17165846#comment-17165846
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Beam JIRA Bot commented on BEAM-10340:
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This issue is assigned but has not received an update in 30 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Lost of precision when casting ZetaSQL time with microsecond-precision
> -----------------------------------------------------------------------
>
> Key: BEAM-10340
> URL: https://issues.apache.org/jira/browse/BEAM-10340
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql-zetasql
> Reporter: Zijie Song
> Assignee: Zijie Song
> Priority: P3
> Labels: stale-assigned
>
> When we cast ZetaSQL time value with microsecond-precision to string, it
> currently would cause lost of precision.
> For example, when we parse the following SQL statement:
>
> "SELECT CAST(s1 as TIME) as t2, CAST(t1 as STRING) as s2
> FROM (SELECT '12:34:56.123456' as s1, TIME '12:34:56.123456' as t1)"
> the result would be 12:34:46, and the corresponding microsecond precision
> would lost.
>
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