Jark Wu created FLINK-14321: ------------------------------- Summary: 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
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. -- This message was sent by Atlassian Jira (v8.3.4#803005)