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https://issues.apache.org/jira/browse/FLINK-36898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hanyu Zheng updated FLINK-36898:
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Description: Currently, Flink does not support nanosecond precision for the
CEIL and FLOOR functions. This limitation exists because Flink does not have a
data type with precision greater than nanoseconds. To introduce support for
nanoseconds in these functions, we need do some research and find an feasible
way to support nanoSecond. (was: Currently, Flink does not support nanosecond
precision for the CEIL and FLOOR functions. This limitation exists because
Flink does not have a data type with precision greater than nanoseconds. To
introduce support for nanoseconds in these functions, we can suppose ceil and
floor nanosecond return same answer, because we didn't support a data type with
precision greater than nanoseconds, this is an feasible way to support
nanosecond.)
> Support SQL FLOOR and CEIL functions with NanoSecond for TIMESTAMP_TLZ
> ----------------------------------------------------------------------
>
> Key: FLINK-36898
> URL: https://issues.apache.org/jira/browse/FLINK-36898
> Project: Flink
> Issue Type: Improvement
> Reporter: Hanyu Zheng
> Priority: Major
>
> Currently, Flink does not support nanosecond precision for the CEIL and FLOOR
> functions. This limitation exists because Flink does not have a data type
> with precision greater than nanoseconds. To introduce support for nanoseconds
> in these functions, we need do some research and find an feasible way to
> support nanoSecond.
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