Github user zecevicp commented on the issue:
https://github.com/apache/spark/pull/21109
That is a restriction if you regard this as an implementation of a range
join, which it is not. This is an *optimization of an equi join*. The intention
never was for it to work as a range join.
I can investigate the logical rewrite approach, but as a part of a
different JIRA ticket, one which would actually be related to a range join.
Thanks for looking into this, though.
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