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https://issues.apache.org/jira/browse/BEAM-10340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zijie Song reassigned BEAM-10340:
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Assignee: Robin Qiu (was: Zijie Song)
> 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: Robin Qiu
> Priority: P3
>
> 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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