dalongliu created FLINK-26929:
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Summary: Introduce adaptive hash join for batch sql optimization
Key: FLINK-26929
URL: https://issues.apache.org/jira/browse/FLINK-26929
Project: Flink
Issue Type: New Feature
Components: Table SQL / Runtime
Reporter: dalongliu
Fix For: 1.16.0
We propose an optimization method adaptive hash join for the batch join
scenario, hoping to integrate the advantages of sorted-merge join and hash join
according to the characteristics of runtime data. The adaptive hash join will
try to use hash join firstly, if it failed, will fallback to sort merge join.
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