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  1. Hive
  2. HIVE-2048 Expedite Partition Pruning
  3. HIVE-2049

Push down partition pruning to JDO filtering for a subset of partition predicates

    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.8.0
    • Component/s: Metastore
    • Hadoop Flags:
      Reviewed

      Description

      Several tasks:

      • expose HiveMetaStoreClient.listPartitionsByFilter() to Hive.java so that PartitionPruner can use that for certain partition predicates.
      • figure out a safe subset of partition predicates that can be pushed down to JDO filtering.

      By my initial testing for the 2nd part is equality queries with AND/OR can be pushed down and return correct results. However range queries on partition columns gave NPE by the JDO execute() function. This might be a bug in the JDO query string itself, but we need to figure it out and heavily test all cases.

        Attachments

        1. HIVE-2049.4.patch
          71 kB
          Ning Zhang
        2. HIVE-2049.3.patch
          67 kB
          Ning Zhang
        3. HIVE-2049.2.patch
          16 kB
          Ning Zhang
        4. HIVE-2049.patch
          17 kB
          Ning Zhang

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              • Assignee:
                nzhang Ning Zhang
                Reporter:
                nzhang Ning Zhang
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                • Created:
                  Updated:
                  Resolved: