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https://issues.apache.org/jira/browse/FLINK-14321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-14321:
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Labels: pull-request-available (was: )
> Support to parse watermark statement in SQL DDL
> -----------------------------------------------
>
> Key: FLINK-14321
> URL: https://issues.apache.org/jira/browse/FLINK-14321
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: Jark Wu
> Assignee: Jark Wu
> Priority: Major
> Labels: pull-request-available
>
> Support to parse watermark syntax in SQL DDL. This can implemented in
> {{flink-sql-parser}} module.
> The watermark syntax is as following:
> {{WATERMARK FOR columnName AS <watermark_strategy_expression>}}
> We should also do some validation during parsing, for example, whether the
> referenced rowtime field exist. We should also support to reference a nested
> field as the rowtime field.
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