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David Vogelbacher 034cb139a1 [SPARK-27778][PYTHON] Fix toPandas conversion of empty DataFrame with Arrow enabled 
## What changes were proposed in this pull request?
https://github.com/apache/spark/pull/22275 introduced a performance improvement where we send partitions out of order to python and then, as a last step, send the partition order as well.
However, if there are no partitions we will never send the partition order and we will get an "EofError" on the python side.
This PR fixes this by also sending the partition order if there are no partitions present.

## How was this patch tested?
New unit test added.

Closes #24650 from dvogelbacher/dv/fixNoPartitionArrowConversion.

Authored-by: David Vogelbacher <dvogelbacher@palantir.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2019-05-22 13:21:26 +09:00
..
ml [SPARK-26970][PYTHON][ML] Add Spark ML interaction transformer to PySpark 2019-04-23 13:53:33 -07:00
mllib [SPARK-27540][MLLIB] Add 'meanAveragePrecision_at_k' metric to RankingMetrics 2019-05-09 08:47:05 -05:00
sql [SPARK-27778][PYTHON] Fix toPandas conversion of empty DataFrame with Arrow enabled 2019-05-22 13:21:26 +09:00
streaming [SPARK-26856][PYSPARK] Python support for from_avro and to_avro APIs 2019-03-11 10:15:07 +09:00
testing [SPARK-27387][PYTHON][TESTS] Replace sqlutils.assertPandasEqual with Pandas assert_frame_equals 2019-04-10 07:50:25 +09:00
tests [SPARK-23961][SPARK-27548][PYTHON] Fix error when toLocalIterator goes out of scope and properly raise errors from worker 2019-05-07 14:47:39 -07:00
__init__.py [SPARK-25248][.1][PYSPARK] update barrier Python API 2018-08-29 07:22:03 -07:00
_globals.py [SPARK-23328][PYTHON] Disallow default value None in na.replace/replace when 'to_replace' is not a dictionary 2018-02-09 14:21:10 +08:00
accumulators.py [SPARK-25591][PYSPARK][SQL] Avoid overwriting deserialized accumulator 2018-10-08 15:18:08 +08:00
broadcast.py [SPARK-18161][PYTHON] Update cloudpickle to v0.6.1 2019-02-02 10:49:45 +08:00
cloudpickle.py [SPARK-27000][PYTHON] Upgrades cloudpickle to v0.8.0 2019-02-28 02:33:10 +09:00
conf.py [SPARK-23522][PYTHON] always use sys.exit over builtin exit 2018-03-08 20:38:34 +09:00
context.py [SPARK-27102][R][PYTHON][CORE] Remove the references to Python's Scala codes in R's Scala codes 2019-03-10 15:08:23 +09:00
daemon.py [PYSPARK] Update py4j to version 0.10.7. 2018-05-09 10:47:35 -07:00
files.py [SPARK-3309] [PySpark] Put all public API in __all__ 2014-09-03 11:49:45 -07:00
find_spark_home.py Fix typos detected by github.com/client9/misspell 2018-08-11 21:23:36 -05:00
heapq3.py Fix typos detected by github.com/client9/misspell 2018-08-11 21:23:36 -05:00
java_gateway.py [SPARK-21094][PYTHON] Add popen_kwargs to launch_gateway 2019-02-15 18:08:06 -08:00
join.py [SPARK-14202] [PYTHON] Use generator expression instead of list comp in python_full_outer_jo… 2016-03-28 14:51:36 -07:00
profiler.py [SPARK-26640][CORE][ML][SQL][STREAMING][PYSPARK] Code cleanup from lgtm.com analysis 2019-01-17 19:40:39 -06:00
rdd.py [SPARK-23961][SPARK-27548][PYTHON] Fix error when toLocalIterator goes out of scope and properly raise errors from worker 2019-05-07 14:47:39 -07:00
rddsampler.py [SPARK-4897] [PySpark] Python 3 support 2015-04-16 16:20:57 -07:00
resultiterable.py [SPARK-3074] [PySpark] support groupByKey() with single huge key 2015-04-09 17:07:23 -07:00
serializers.py [SPARK-27629][PYSPARK] Prevent Unpickler from intervening each unpickling 2019-05-04 13:21:08 +09:00
shell.py [SPARK-25238][PYTHON] lint-python: Fix W605 warnings for pycodestyle 2.4 2018-09-13 11:19:43 +08:00
shuffle.py [SPARK-25696] The storage memory displayed on spark Application UI is… 2018-12-10 18:27:01 -06:00
statcounter.py [SPARK-6919] [PYSPARK] Add asDict method to StatCounter 2015-09-29 13:38:15 -07:00
status.py [SPARK-4172] [PySpark] Progress API in Python 2015-02-17 13:36:43 -08:00
storagelevel.py [SPARK-25908][CORE][SQL] Remove old deprecated items in Spark 3 2018-11-07 22:48:50 -06:00
taskcontext.py [SPARK-26640][CORE][ML][SQL][STREAMING][PYSPARK] Code cleanup from lgtm.com analysis 2019-01-17 19:40:39 -06:00
traceback_utils.py [SPARK-1087] Move python traceback utilities into new traceback_utils.py file. 2014-09-15 19:28:17 -07:00
util.py [SPARK-26856][PYSPARK] Python support for from_avro and to_avro APIs 2019-03-11 10:15:07 +09:00
version.py [SPARK-25592] Setting version to 3.0.0-SNAPSHOT 2018-10-02 08:48:24 -07:00
worker.py [SPARK-27240][PYTHON] Use pandas DataFrame for struct type argument in Scalar Pandas UDF. 2019-03-25 11:26:09 -07:00