Github user DmytroShkvyra commented on the issue:
https://github.com/apache/flink/pull/3673
@fhueske
> When I tried to change some of the test cases to use inequality
predicates (e.g., a < cnt), I notice that these joins are "blocked" by the
FlinkLogicalJoinConverter rule.
We should
change that rule to also convert joins that can be translated by the
SingleRowJoin (LEFT / RIGHT joins with a single row on the inner side).
adapt all test cases to use inequality predicates to enforce
SingleRowJoins. Some of the current tests will simply use the default join,
which is not what we want to test here.
What do you think?
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