Hive
  1. Hive
  2. HIVE-947

Add run length encoding into RCFile's block header

    Details

    • Type: Improvement Improvement
    • Status: Closed
    • Priority: Minor Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.5.0
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      When RCFile constructing rows, it needs to get column value's length via calling readVLong(). And this should be avoided for fix length or most fix length columns.
      This also should not influence old rcfile files, which means it should also work correctly on files with previous RCFile format.

        Activity

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          People

          • Assignee:
            He Yongqiang
            Reporter:
            He Yongqiang
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            Dates

            • Created:
              Updated:
              Resolved:

              Development