GitHub user rxin opened a pull request:
https://github.com/apache/spark/pull/16187
[SPARK-18760][SQL] Consistent format specification for FileFormats
## What changes were proposed in this pull request?
We currently rely on FileFormat implementations to override toString in
order to get a proper explain output. It'd be better to just depend on
shortName for those.
Before:
```
scala> spark.read.text("test.text").explain()
== Physical Plan ==
*FileScan text [value#15] Batched: false, Format:
org.apache.spark.sql.execution.datasources.text.TextFileFormat@xyz, Location:
InMemoryFileIndex[file:/scratch/rxin/spark/test.text], PartitionFilters: [],
PushedFilters: [], ReadSchema: struct<value:string>
```
After:
```
scala> spark.read.text("test.text").explain()
== Physical Plan ==
*FileScan text [value#15] Batched: false, Format: text, Location:
InMemoryFileIndex[file:/scratch/rxin/spark/test.text], PartitionFilters: [],
PushedFilters: [], ReadSchema: struct<value:string>
```
Also closes #14680.
## How was this patch tested?
Verified in spark-shell.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/rxin/spark SPARK-18760
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16187.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 #16187
----
commit 566c8007dcf74594c23ef2b1fcc394ce64029e9b
Author: Reynold Xin <r...@databricks.com>
Date: 2016-12-07T05:22:40Z
[SPARK-18760][SQL] Consistent format specification for FileFormats
----
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