GitHub user HyukjinKwon opened a pull request:
https://github.com/apache/spark/pull/11169
[SPARK-13260][SQL] count(*) does not work with CSV data source
https://issues.apache.org/jira/browse/SPARK-13260
This is a quicky fix for `count(*)`.
When the `requiredColumns` is empty, currently it returns
`sqlContext.sparkContext.emptyRDD[Row]` which does not have the count.
Just like JSON datasource, this PR let the CSV datasource count the rows
but do not parse each tokens.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/HyukjinKwon/spark SPARK-13260
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11169.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 #11169
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commit b52e1564b578cddb35931af2dd0e9c2c9d97b6f3
Author: hyukjinkwon <gurwls...@gmail.com>
Date: 2016-02-11T08:42:00Z
count(*) does not work with CSV data source
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