wangsan created FLINK-20624:
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Summary: Refactor StreamExecJoinRule、StreamExecIntervalJoinRule
and StreamExecTemporalJoinRule
Key: FLINK-20624
URL: https://issues.apache.org/jira/browse/FLINK-20624
Project: Flink
Issue Type: Improvement
Components: Table SQL / Planner
Affects Versions: 1.13.0
Reporter: wangsan
Fix For: 1.13.0
Currentlly, some code are duplicated in
`StreamExecJoinRule`、`StreamExecIntervalJoinRule` and
`StreamExecTemporalJoinRule`, this JIRA tries to eliminate the code
duplication, so we can maintain code easier.
`StreamExecJoinRule`、`StreamExecIntervalJoinRule` and
`StreamExecTemporalJoinRule`
are rules for stream-stream join with different match condition, we can add an
abstract class `StreamExecJoinRuleBase` as a base implementation for them.
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