GitHub user liancheng opened a pull request:
https://github.com/apache/spark/pull/13623
[SPARK-15895][SQL] Filters out metadata files while doing partition
discovery
## What changes were proposed in this pull request?
Take the following directory layout as an example:
```
dir/
`- p0=0/
|-_metadata
`- p1=0/
|-part-00001.parquet
|-part-00002.parquet
|-...
...
```
The `_metadata` file under `p0=0` shouldn't fail partition discovery.
This PR filters output all metadata files whose names start with `_` while
doing partition discovery.
## How was this patch tested?
New unit test added in `ParquetPartitionDiscoverySuite`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/liancheng/spark
spark-15895-partition-disco-no-metafiles
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13623.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 #13623
----
commit 5015fa0ee08b05a39261bef1ed0b152fedb5029e
Author: Cheng Lian <l...@databricks.com>
Date: 2016-06-12T08:36:15Z
Filters out metadata files while doing partition discovery
----
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