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Posted to dev@flink.apache.org by "Timo Walther (Jira)" <ji...@apache.org> on 2021/02/22 10:07:00 UTC

[jira] [Created] (FLINK-21435) Add a SqlExpression in table-common

Timo Walther created FLINK-21435:
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             Summary: Add a SqlExpression in table-common
                 Key: FLINK-21435
                 URL: https://issues.apache.org/jira/browse/FLINK-21435
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / API
            Reporter: Timo Walther
            Assignee: Timo Walther


We introduced a dedicated function definition in FLINK-20971 to use SQL expression in Table API. However, for usability and clear Maven module design it is better add a dedicated `SqlExpression` in `table-common`. This allows catalogs to specify an unresolved SQL expression without a dependency on `table-api` furthermore we can add SQL specific functions to the new `Schema` class.



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