Hey Sungwoo!
Regarding Q14 / "java.lang.RuntimeException: equivalence mapping violation"
From the stack trace you shared it seems like the mapper have already seen both the filter and the ast node earlier - and they are in separate mapping groups. (Which is
unfortunate) I think it won't be simple to track that down - it will definetly need some debugging.
The best would be to have a repro query for it...
note: we already run q14 in TestTezPerf*Driver - could it might be possible that we've disabled some features in the hive-site.xml for these tests; and that's why we
haven't seen it before?
cheers,
Zoltan
