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[ARROW-2542] [Plasma] Refactor object notification code - Arrow - [issue]
...Replace unique_ptr<uint8_t[]> with vector<uint8_t>...    Author: Philipp Moritz , 2019-04-17, 16:01
[ARROW-2127] [Plasma] Transfer of objects between CPUs and GPUs - Arrow - [issue]
...It should be possible to transfer an object that was created on the CPU to the GPU and vice versa. One natural implementation is to introduce a flag to plasma::Get that specifies where the o...    Author: Philipp Moritz , 2019-04-17, 16:01
[ARROW-3919] [Python] Support 64 bit indices for pyarrow.serialize and pyarrow.deserialize - Arrow - [issue]
...see    Author: Philipp Moritz , 2019-04-17, 15:57
[ARROW-4452] [Python] Serializing sparse torch tensors - Arrow - [issue]
...Using the pytorch serialization handler on sparse Tensors:import torchi = torch.LongTensor([[0, 2], [1, 0], [1, 2]])v = torch.FloatTensor([3,      4,      5    ])tensor = torch.sparse.FloatT...    Author: Philipp Moritz , 2019-04-17, 15:57
[ARROW-4025] [Python] TensorFlow/PyTorch arrow ThreadPool workarounds not working in some settings - Arrow - [issue]
...See the bug report in wonder if we can revisit this issue and try to get rid of the workarounds we tried to deploy in the past.See also the di...    Author: Philipp Moritz , 2019-04-17, 15:55
[ARROW-1266] [Plasma] Move heap allocations to arrow memory pool - Arrow - [issue]
...At the moment we are allocating memory with std::vectors and even new in some places, this should be cleaned up....    Author: Philipp Moritz , 2019-04-17, 15:53
[ARROW-4757] [C++] Nested chunked array support - Arrow - [issue]
...Dear all,I'm currently trying to lift the 2GB limit on the python serialization. For this, I implemented a chunked union builder to split the array into smaller arrays.However, some of the c...    Author: Philipp Moritz , 2019-04-17, 15:52
[ARROW-1692] [Python, Java] UnionArray round trip not working - Arrow - [issue]
...I'm currently working on making pyarrow.serialization data available from the Java side, one problem I was running into is that it seems the Java implementation cannot read UnionArrays gener...    Author: Philipp Moritz , 2019-04-17, 15:50
[ARROW-5022] [C++] Implement more "Datum" types for AggregateKernel - Arrow - [issue]
...Currently it gives the following error if the datum isn't an array:AggregateKernel expects Array datum...    Author: Philipp Moritz , 2019-04-17, 15:49
[ARROW-5002] [C++] Implement GroupBy - Arrow - [issue]
...Dear all,I wonder what the best way forward is for implementing GroupBy kernels. Initially this was part of is not contained in the current...    Author: Philipp Moritz , 2019-04-17, 15:48