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https://issues.apache.org/jira/browse/FLINK-14599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16973212#comment-16973212
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Zhenghua Gao commented on FLINK-14599:
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Tables defined by DDL use DescriptorProperties putTableSchema/getTableSchema to
de/serializing DataTypes and lose precision information.
> Support precision of TimestampType in blink planner
> ---------------------------------------------------
>
> Key: FLINK-14599
> URL: https://issues.apache.org/jira/browse/FLINK-14599
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Planner
> Reporter: Zhenghua Gao
> Priority: Major
>
> Since FLINK-14080 introduced an internal representation(SqlTimestamp) of
> TimestampType with precision. This subtask will replace current long with
> SqlTimestamp, and let blink planner support precision of TimestampType.
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