[TAJO-904] ORDER BY Null first support

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Assignee: Hyoungjun Kim
• Reporter: Hyoungjun Kim
• Created: 03/Jul/14 18:54
• Updated: 15/Jul/14 06:20
• Resolved: 15/Jul/14 06:08

Description

ORDER BY with a null column miss some data. I found RowStoreEncoder has a bug dealing with NULL values.
"continue" statement should be add.

      Column col;
      for (int i = 0; i < schema.size(); i++) {
        if (tuple.isNull(i)) {
          nullFlags.set(i);
          continue;
        }
        col = schema.getColumn(i);