GitHub user viirya opened a pull request:
https://github.com/apache/spark/pull/4786
[SPARK-6037][SQL] Avoiding duplicate Parquet schema merging
`FilteringParquetRowInputFormat` manually merges Parquet schemas before
computing splits. However, it is duplicate because the schemas are already
merged in `ParquetRelation2`. We don't need to re-merge them at `InputFormat`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/viirya/spark-1 dup_parquet_schemas_merge
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/4786.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 #4786
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commit ef78a5afc3d93815d0e1336493d717573da1da7f
Author: Liang-Chi Hsieh <[email protected]>
Date: 2015-02-26T09:38:14Z
Avoiding duplicate Parquet schema merging.
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