[jira] [Created] (HIVE-18873) Skipping predicate pushdown silently at HiveInputFormat can cause storage handlers to produce erroneous result

["Ankit Singhal (JIRA)" <ji...@apache.org>]

Ankit Singhal created HIVE-18873:
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             Summary: Skipping predicate pushdown silently at HiveInputFormat can cause storage handlers to produce erroneous result
                 Key: HIVE-18873
                 URL: https://issues.apache.org/jira/browse/HIVE-18873
             Project: Hive
          Issue Type: Bug
    Affects Versions: 3.0.0
            Reporter: Ankit Singhal
            Assignee: Ankit Singhal
             Fix For: 3.0.0


{code:java}
// disable filter pushdown for mapreduce when there are more than one table aliases,

    // since we don't clone jobConf per alias

    if (mrwork != null && mrwork.getAliases() != null && mrwork.getAliases().size() > 1 &&

      jobConf.get(ConfVars.HIVE_EXECUTION_ENGINE.varname).equals("mr")) {

      return;

    }
{code}
I believe this needs to be handled at OpProcFactory so that hive doesn't believe that predicate is handled by storage handler.



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