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From packet23 <...@git.apache.org>
Subject [GitHub] flink pull request #5145: [FLINK-8230] [ORC] Improved mapping of Orc records...
Date Sun, 10 Dec 2017 13:42:30 GMT
GitHub user packet23 opened a pull request:


    [FLINK-8230] [ORC] Improved mapping of Orc records to Flink Table rows.

    ## What is the purpose of the change
    Improved mapping of Orc records to Flink table rows and ensured nested structs are correctly
    ## Brief change log
      - Introduced OrcRowReader to be used on a single input split
      - OrcRowReader was adapted from org.apache.orc.mapred.OrcMapredRecordReader
      - Added a bunch of test datasets, mostly from orc distribution
    ## Verifying this change
    This change added tests and can be verified as follows:
      - OrcRowReaderTest maps test datasets to rows comparing count
      - OrcRowReader is also covered by existing flink-orc unit tests.
      - Manually verified the change by running a 4 node cluster on YARN, reading an existing
full dataset
    ## Does this pull request potentially affect one of the following parts:
      - Dependencies (does it add or upgrade a dependency): no
      - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no
      - The serializers: don't know
      - The runtime per-record code paths (performance sensitive): yes
      - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing,
Yarn/Mesos, ZooKeeper: don't know
      - The S3 file system connector: no
    ## Documentation
      - Does this pull request introduce a new feature? no
      - If yes, how is the feature documented? not applicable

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/packet23/flink FLINK-8230

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #5145
commit 93ef978bb5a55700fa25551eda5464860d6d1ae2
Author: Sebastian Klemke <packet@nerdheim.de>
Date:   2017-12-09T19:35:01Z

    [FLINK-8230] [ORC] Improved mapping of Orc records to Flink Table rows.



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