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[Python] Implement conversion between integer coded as floating points with NaN to an Arrow integer type

10

For example: if pandas has casted integer data to float, this would enable the integer data to be recovered (so long as the values fall in the ~2^53 floating point...

[C++] File and stream APIs for interacting with "large" schemas

1

For data where the metadata itself is large (> 10000 fields), doing a full in-memory reconstruction of a record batch may be impractical if the user's goal is to do...

[C++] gandiva-micro_benchmarks is broken in MSVC build

1

Not a blocking issue for 0.13. I encountered this when debugging the CMake refactor branch with Visual Studio 2015 **Reporter**: [Wes McKinney](https://issues.apache.org/jira/browse/ARROW-4864) / @wesm **Note**: *This issue was originally created...

[C++/Python] Test build with conda's defaults channel

1

We mostly use `conda-forge` as the developers of Arrow but also have some users that would build with packages from `defaults`. As the versions of packages is a bit behind...

[C++][Parquet] page level min / max written by parquet-cpp is not recognized by parquet-tools

1

test parquet is created by ```Java n = 1000000 x = [1.0, 2.0, 3.0, 4.0, 5.0, 5.0, None] * n y = [u'é', u'é', u'é', u'é'] * n + [u'a',...

[C++][Parquet] Detect parquet-mr style dictionary_page

1

parquet-mr incorrectly writes (dictionary_page_offset, first_data_page_offset) as (0, dictionary_page_offset) So whenever parquet-cpp (pyarrow) reads the file, it sets `has_dictionary_page: False` and `dictionary_page_offset: None` ```Java row group 0 -------------------------------------------------------------------------------- x: DOUBLE SNAPPY...

[Doc][C++] Add examples on how to construct with ArrayData::Make instead of builder classes

2

**Reporter**: [Francois Saint-Jacques](https://issues.apache.org/jira/browse/ARROW-4999) / @fsaintjacques **Note**: *This issue was originally created as [ARROW-4999](https://issues.apache.org/jira/browse/ARROW-4999). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*

[Python] Failed to convert 'float' to 'double' with using pandas_udf and pyspark

2

Hi everyone, I would like to report a (potential) bug. I followed an official guide on [Usage Guide for Pandas with Apache Arrow](.  However, `libarrrow` throws me error for type...

[C++] Implement direct support for shared memory arrow columns

2

I consider the option of memory-mapping columns to shared memory to be valuable. Such option will be triggered if specific metadata are supplied. Given that many data frames backed by...

[C++] Build toolchain support for libcurl

1

libcurl can be used in a number of different situations (e.g. TensorFlow uses it for GCS interactions https://github.com/tensorflow/tensorflow/blob/master/tensorflow/core/platform/cloud/gcs_file_system.cc) so this will likely be required once we begin to tackle that...