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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-18110) OrcInputFormat.combineOrCreateETLStrategy() doesn't combine if there are deltas
Date Tue, 21 Nov 2017 01:41:01 GMT
Eugene Koifman created HIVE-18110:
-------------------------------------

             Summary: OrcInputFormat.combineOrCreateETLStrategy() doesn't combine if there
are deltas
                 Key: HIVE-18110
                 URL: https://issues.apache.org/jira/browse/HIVE-18110
             Project: Hive
          Issue Type: Bug
          Components: Transactions
    Affects Versions: 3.0.0
            Reporter: Eugene Koifman


this method has 
{noformat}
    if (!deltas.isEmpty() || combinedCtx == null) {
      //why is this checking for deltas.isEmpty() - is this Acid 1.0 remnant?
      return new ETLSplitStrategy(
          context, fs, dir, files, readerTypes, isOriginal, deltas, covered, ugi,
          allowSyntheticFileIds, isDefaultFs);
    } else
{noformat}

what is the purpose of checking deltas?  (here with Acid 2.0 deltas is delete deltas)
Is this some remnant of Acid 1.0?



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