Uploaded image for project: 'Tajo'
  1. Tajo
  2. TAJO-345

MergeScanner should support projectable storages

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.8.0
    • Component/s: Storage
    • Labels:
      None

      Description

      MergeScanner sequentially scans multiple fragments of the same table.
      If the table is stored as a columnar file such as RCFile, MergeScanner should read only target columns.

        Activity

        Hide
        jihoonson Jihoon Son added a comment -

        I attached a patch.

        Show
        jihoonson Jihoon Son added a comment - I attached a patch.
        Hide
        hyunsik Hyunsik Choi added a comment -

        +1

        Nice work. Ship it!

        Show
        hyunsik Hyunsik Choi added a comment - +1 Nice work. Ship it!
        Hide
        jihoonson Jihoon Son added a comment -

        I committed it.
        Thanks!

        Show
        jihoonson Jihoon Son added a comment - I committed it. Thanks!
        Hide
        hudson Hudson added a comment -

        SUCCESS: Integrated in Tajo-trunk-postcommit #576 (See https://builds.apache.org/job/Tajo-trunk-postcommit/576/)
        TAJO-345: MergeScanner should support projectable storages. (jihoon) (jihoonson: https://git-wip-us.apache.org/repos/asf?p=incubator-tajo.git&a=commit&h=1191003ef2f20acdfa84490eb314a0e8c5d510de)

        • tajo-core/tajo-core-storage/src/main/java/org/apache/tajo/storage/MergeScanner.java
        • tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/engine/planner/physical/SeqScanExec.java
        • tajo-core/tajo-core-storage/src/test/java/org/apache/tajo/storage/TestMergeScanner.java
        • CHANGES.txt
        Show
        hudson Hudson added a comment - SUCCESS: Integrated in Tajo-trunk-postcommit #576 (See https://builds.apache.org/job/Tajo-trunk-postcommit/576/ ) TAJO-345 : MergeScanner should support projectable storages. (jihoon) (jihoonson: https://git-wip-us.apache.org/repos/asf?p=incubator-tajo.git&a=commit&h=1191003ef2f20acdfa84490eb314a0e8c5d510de ) tajo-core/tajo-core-storage/src/main/java/org/apache/tajo/storage/MergeScanner.java tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/engine/planner/physical/SeqScanExec.java tajo-core/tajo-core-storage/src/test/java/org/apache/tajo/storage/TestMergeScanner.java CHANGES.txt

          People

          • Assignee:
            jihoonson Jihoon Son
            Reporter:
            jihoonson Jihoon Son
          • Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development