Github user dilipbiswal commented on the issue: https://github.com/apache/spark/pull/22641 @mgaido91 Trying to understand the concern regarding "working combination and a non-working " comment. In my understanding, originally we were doing a cross join between two sets of codecs. so if outer loop has 2 elements and inner has 3 , then we would test 6 combinations. With the current change , in a given run, we would just randomly pick one out of that 6 combination with a hope that another run would pick a different combination out of the 6 possible combination. In case of a failure in this test, we should run the full tests i.e all 6 combination to identify the issue. Please let me know what i could be missing here ?
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