GitHub user kiszk opened a pull request:
https://github.com/apache/spark/pull/12108
[Spark-14138][SQL] Fix generated SpecificColumnarIterator code can exceed
JVM size limit for cached DataFrames
## What changes were proposed in this pull request?
This PR reduces Java byte code size of method in
```SpecificColumnarIterator``` by using a approach to make a group for lot of
```ColumnAccessor``` instantiations or method calls (more than 200) into a
method
## How was this patch tested?
Added a new unit test, which includes large instantiations and method
calls, to ```InMemoryColumnarQuerySuite```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kiszk/spark SPARK-14138-master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12108.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 #12108
----
commit 9ce2ad637ceef472f7df405b3203159e60574837
Author: Kazuaki Ishizaki <[email protected]>
Date: 2016-04-01T09:19:07Z
group calls of accessors or extractors into methods if their numbers
exceeds a threshold
commit 0a1b8818838c0149f73bab7a7638c09f351548a7
Author: Kazuaki Ishizaki <[email protected]>
Date: 2016-04-01T09:19:32Z
add test suite
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