Eugene Koifman created HIVE-20856:

             Summary: ValidReaderWriteIdList() is not valid in most places
                 Key: HIVE-20856
             Project: Hive
          Issue Type: Bug
          Components: Transactions
    Affects Versions: 3.0.0
            Reporter: Eugene Koifman

Most of the time it's something like this:
String txnString = conf.get(ValidWriteIdList.VALID_WRITEIDS_KEY);
this.validWriteIdList = (txnString == null) ? 
       new ValidReaderWriteIdList() : new ValidReaderWriteIdList(txnString);

but ValidReaderWriteIdList() (no arg c'tor) creates a write ID list that 
considers every base/delta valid - this unlikely to be the correct for a 
general read of acid data.

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