[jira] [Created] (FLINK-3498) Implement TRIM, SUBSTRING as reference design for Table API

[Shang Yuanchun (Jira)]

Timo Walther created FLINK-3498:
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             Summary: Implement TRIM, SUBSTRING as reference design for Table API
                 Key: FLINK-3498
                 URL: https://issues.apache.org/jira/browse/FLINK-3498
             Project: Flink
          Issue Type: Sub-task
          Components: Table API
            Reporter: Timo Walther
            Assignee: Timo Walther


As described in FLINK-3497 TRIM and SUBSTRING are the first scalar functions implemented in Calcite and used in Table API.



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