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Sean Owen 0578ff9681 [SPARK-16324][SQL] regexp_extract should doc that it returns empty string when match fails 
## What changes were proposed in this pull request?

Doc that regexp_extract returns empty string when regex or group does not match

## How was this patch tested?

Jenkins test, with a few new test cases

Author: Sean Owen <sowen@cloudera.com>

Closes #14525 from srowen/SPARK-16324.
2016-08-10 10:14:43 +01:00
..
__init__.py [SPARK-16772][PYTHON][DOCS] Fix API doc references to UDFRegistration + Update "important classes" 2016-08-06 05:02:59 +01:00
catalog.py [SPARK-16772] Correct API doc references to PySpark classes + formatting fixes 2016-07-28 14:57:15 -07:00
column.py [SPARK-15464][ML][MLLIB][SQL][TESTS] Replace SQLContext and SparkContext with SparkSession using builder pattern in python test code 2016-05-23 18:14:48 -07:00
conf.py [SPARK-15464][ML][MLLIB][SQL][TESTS] Replace SQLContext and SparkContext with SparkSession using builder pattern in python test code 2016-05-23 18:14:48 -07:00
context.py [SPARK-16772][PYTHON][DOCS] Restore "datatype string" to Python API docstrings 2016-07-29 14:07:03 -07:00
dataframe.py [SPARK-16772] Correct API doc references to PySpark classes + formatting fixes 2016-07-28 14:57:15 -07:00
functions.py [SPARK-16324][SQL] regexp_extract should doc that it returns empty string when match fails 2016-08-10 10:14:43 +01:00
group.py [MINOR][PYSPARK][DOC] Fix wrongly formatted examples in PySpark documentation 2016-07-06 10:45:51 -07:00
readwriter.py [SPARK-16772] Correct API doc references to PySpark classes + formatting fixes 2016-07-28 14:57:15 -07:00
session.py [SPARK-16772][PYTHON][DOCS] Restore "datatype string" to Python API docstrings 2016-07-29 14:07:03 -07:00
streaming.py [SPARK-16772] Correct API doc references to PySpark classes + formatting fixes 2016-07-28 14:57:15 -07:00
tests.py [SPARK-16062] [SPARK-15989] [SQL] Fix two bugs of Python-only UDTs 2016-08-02 10:08:18 -07:00
types.py [SPARK-16772] Correct API doc references to PySpark classes + formatting fixes 2016-07-28 14:57:15 -07:00
utils.py [SPARK-15953][WIP][STREAMING] Renamed ContinuousQuery to StreamingQuery 2016-06-15 10:46:07 -07:00
window.py [SPARK-14058][PYTHON] Incorrect docstring in Window.order 2016-03-21 23:52:33 -07:00