[jira] [Created] (FLINK-12079) Add support for generating optimized logical plan for join on batch

[Shang Yuanchun (Jira)]

godfrey he created FLINK-12079:
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             Summary: Add support for generating optimized logical plan for join on batch
                 Key: FLINK-12079
                 URL: https://issues.apache.org/jira/browse/FLINK-12079
             Project: Flink
          Issue Type: New Feature
          Components: Table SQL / Planner
            Reporter: godfrey he
            Assignee: godfrey he


Currently, there are 3 types of batch physical join nodes: {{BatchExecHashJoin}}, {{BatchExecSortMergeJoin}} and {{BatchExecNestedLoopJoin}}. This issue aims to add rules to convert logical join to appropriate physical join.
a logical join
* can be converted to {{BatchExecHashJoin}} if join keys are not empty and ShuffleHashJoin or BroadcastHashJoin are enabled,
* can be converted to {{BatchExecSortMergeJoin}} if join keys are not empty and SortMergeJoin is enabled,
* can be converted to {{BatchExecNestedLoopJoinRule}} if NestedLoopJoin is enabled or one of join input sides returns at most a single row.




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