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[expand - 2 more] - [VOTE] Release Apache Arrow 0.10.0 (RC0) - Arrow - [mail # dev]
...+1Tested against a wide range of applications and no obvious problems found so far.For our regular test against master: WIP, ETA around end of September (hopefully faster).Thanks,MarcoOn Aug...
   Author: Marco Neumann , 2018-08-03, 13:00
[ARROW-2963] [Python] Deadlock during fork-join and use_threads=True - Arrow - [issue]
...The following code passes:import osimport pandas as pdimport pyarrow as padf = pd.DataFrame({'x': [1]})table = pa.Table.from_pandas(df)df = table.to_pandas(use_threads=False)pid = os.fork()i...
http://issues.apache.org/jira/browse/ARROW-2963    Author: Marco Neumann , 2018-08-02, 23:23
[expand - 1 more] - Recruiting more maintainers for Apache Arrow - Arrow - [mail # dev]
...Hey,first of all, thanks a lot for your, Uwes, the mergers and contributorswork. Now, to the maintainer problem:# Arrow as "a library"One thing that makes Arrow special is that it is not a s...
   Author: Marco Neumann , 2018-06-30, 19:07
[ARROW-2554] pa.array type inference bug when using NS-timestamp - Arrow - [issue]
...The following fails:import pandas as pdimport pyarrow as papa.array([pd.Timestamp('now').to_datetime64()])with ArrowNotImplementedError: Cannot convert NumPy datetime64 objects with differin...
http://issues.apache.org/jira/browse/ARROW-2554    Author: Marco Neumann , 2018-06-14, 12:21
[ARROW-2513] [Python] DictionaryType should give access to index type and dictionary array - Arrow - [issue]
...Currently, only ordered is mapped from C Type to Python, but index type and dictionary array are not accessible from Python....
http://issues.apache.org/jira/browse/ARROW-2513    Author: Marco Neumann , 2018-04-30, 07:48
[ARROW-1589] [C++] Fuzzing for certain input formats - Arrow - [issue]
...The arrow lib should have fuzzing tests for certain input formats, e.g. for reading record batches from streams. Ideally, malformed input must not crash the system but must report a proper e...
http://issues.apache.org/jira/browse/ARROW-1589    Author: Marco Neumann , 2018-02-04, 09:18
[ARROW-1276] Cannot serializer empty DataFrame to parquet - Arrow - [issue]
...The following code fails with pyarrow.lib.ArrowInvalid: Invalid: chunk size per row_group must be greater than 0 but should not:import pandas as pdimport pyarrow as paimport pyarrow.parquet ...
http://issues.apache.org/jira/browse/ARROW-1276    Author: Marco Neumann , 2017-07-28, 14:29
[ARROW-1083] Object categoricals are not serialized when only None is present - Arrow - [issue]
...The following code sample fails with pyarrow.lib.ArrowNotImplementedError: NotImplemented: unhandled type but should not:import pandas as pdimport pyarrow as paimport pyarrow.parquet as pqdf...
http://issues.apache.org/jira/browse/ARROW-1083    Author: Marco Neumann , 2017-06-02, 08:18