Github user viirya commented on the issue: https://github.com/apache/spark/pull/16998 @sameeragarwal That's correct. > By the way, as an aside we should probably allow constraint inference/propagation to be turned off via a conf flag to provide a quick work around against these kind of problems. As we use constraints in optimization, if we turn off constraint inference/propagation, wouldn't it miss optimization chance for query plans?
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