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Posted to dev@flink.apache.org by "ZhuoYu Chen (Jira)" <ji...@apache.org> on 2021/12/08 03:57:00 UTC

[jira] [Created] (FLINK-25218) Performance issues with lookup join accessing external dimension tables

ZhuoYu Chen created FLINK-25218:
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             Summary:  Performance issues with lookup join accessing external dimension tables
                 Key: FLINK-25218
                 URL: https://issues.apache.org/jira/browse/FLINK-25218
             Project: Flink
          Issue Type: Improvement
          Components: Table SQL / API
            Reporter: ZhuoYu Chen


Current lookup join: for each input data, access the external dimension table to get the result and output a data

Implement a lookup join that can improve performance by batching and delaying



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