wuchong commented on issue #8302: [FLINK-12269][table-blink] Support Temporal 
Table Join in blink planner and runtime
URL: https://github.com/apache/flink/pull/8302#issuecomment-487433247
 
 
   Hi @godfreyhe , I add the `JoinPushExpressionsRule.INSTANCE` rule into 
predicate pushdown stage to make sure the calculation expression can be pushed 
down (to make sure `ON a+1 = b` is an equi join).  That's why several results 
of plan test are changed. I have checked, the changes are reasonable.
   
   It would be nice if you can have a look too.

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