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| author | hyukjinkwon <gurwls223@gmail.com> | 2016-02-12 11:54:58 -0800 |
|---|---|---|
| committer | Reynold Xin <rxin@databricks.com> | 2016-02-12 11:54:58 -0800 |
| commit | ac7d6af1cafc6b159d1df6cf349bb0c7ffca01cd (patch) | |
| tree | 8b8a0d66c0c6c48b6626b7654e848f6ced61e04d /python/pyspark/sql/functions.py | |
| parent | c4d5ad80c8091c961646a82e85ecbc335b8ffe2d (diff) | |
| download | spark-ac7d6af1cafc6b159d1df6cf349bb0c7ffca01cd.tar.gz spark-ac7d6af1cafc6b159d1df6cf349bb0c7ffca01cd.tar.bz2 spark-ac7d6af1cafc6b159d1df6cf349bb0c7ffca01cd.zip | |
[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 lets the CSV datasource count the rows but do not parse each set of tokens.
Author: hyukjinkwon <gurwls223@gmail.com>
Closes #11169 from HyukjinKwon/SPARK-13260.
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