rubenada opened a new pull request #1616: [CALCITE-3535] EnumerableJoinRule: 
remove unnecessary Filter on top of INNER Join
URL: https://github.com/apache/calcite/pull/1616
 
 
   Jira ticket: 
[CALCITE-3535](https://issues.apache.org/jira/browse/CALCITE-3535)
   
   With the implementation of 
[CALCITE-2973](https://issues.apache.org/jira/browse/CALCITE-2973), now 
EnumerableHashJoin supports all type of conditions (not just equi joins). 
However, there is still one TODO in EnumerableHashJoinRule that, in case of an 
INNER Join, creates a Filter with the non-equi conditions on top of the 
EnumerableHashJoin (created only with the equi-conditions), this filter is not 
really needed, since now EnumerableHashJoinRule can support the full condition: 
equi and non-equi items.

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