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Posted to dev@flink.apache.org by "Jark Wu (Jira)" <ji...@apache.org> on 2020/02/28 05:11:00 UTC

[jira] [Created] (FLINK-16323) Support to join a static table in streaming mode

Jark Wu created FLINK-16323:
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             Summary: Support to join a static table in streaming mode
                 Key: FLINK-16323
                 URL: https://issues.apache.org/jira/browse/FLINK-16323
             Project: Flink
          Issue Type: New Feature
          Components: Table SQL / API, Table SQL / Planner
            Reporter: Jark Wu


Currently, we already support to join a stream and a bounded stream using reguar join. However, this will be tranlsated into stream-stream join which is not efficient, because it will output early results and maybe retracted afterwards. 

A better and native support will be using a special temporal join operator which will block the streaming side until all the static table data is loaded. 

This can help users to join a huge table, e.g. MySQL table with billion records but changes little.



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