GitHub user kiszk opened a pull request:
https://github.com/apache/spark/pull/15467
[SPARK-17192][SQL] Refactor code generation to get data for
ColumnVector/ColumnarBatch
## What changes were proposed in this pull request?
This PR refactors the code generation part to get data from
`ColumnarVector` and `ColumnarBatch` by using a trait `ColumnarBatchScan` for
ease of reuse. This is because this part will be reused by several components
(e.g. parquet reader, Dataset.cache, and others) since `ColumnarBatch` will be
first citizen.
This PR is a part of https://github.com/apache/spark/pull/15219. In
advance, this PR makes the code generation for `ColumnarVector` and
`ColumnarBatch` reuseable as a trait. In general, this is very useful for other
components from the reuseability view, too.
## How was this patch tested?
tested existing test suites
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kiszk/spark columnarrefactor
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15467.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #15467
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commit 5d78d012758d18bb76f0cd76a58145f8ff99f525
Author: Kazuaki Ishizaki <ishiz...@jp.ibm.com>
Date: 2016-10-13T16:02:53Z
refactoring
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