Github user amansinha100 commented on the issue:
https://github.com/apache/drill/pull/671
Thanks @julianhyde... CALCITE-604 should potentially help with this.
Drill's calcite version has not caught up to this yet. Let me confer with
@jinfengni sometime next week (he is on vacation until then) and get back on
what can be done to get this into Drill. In the meantime, even though my patch
addresses the hang issue, I will hold it for now.
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