asfimport

[C++] Implement support for using selection vectors in scalar aggregate function kernels

7

The aggregate kernels don't support mask (the result of a filter). Add the the following method to `AggregateFunction`. ```c++ virtual Status ConsumeWithFilter(const Array& input, const Array& mask, void* state) const...

[C++] Implement safe Make constructor

1

The following classes need validating constructors: - ArrayData - ChunkedArray - RecordBatch - Column - Table **Reporter**: [Francois Saint-Jacques](https://issues.apache.org/jira/browse/ARROW-4838) / @fsaintjacques **Note**: *This issue was originally created as [ARROW-4838](https://issues.apache.org/jira/browse/ARROW-4838). Please...

[Python] Remove backward compatibility hacks from pyarrow.pandas_compat

6

This code is growing less maintainable. I think we can remove these backwards compatibility hacks since there are released versions of pyarrow that can be used to read old metadata...

[C++] Improve buffer symbolic index

6

The array data `buffers` vector is index differently depending on the Array type. This feature would expose static constexpr named variables for buffer index. **Reporter**: [Francois Saint-Jacques](https://issues.apache.org/jira/browse/ARROW-4729) / @fsaintjacques **Note**:...

[Benchmarking] Add portable machine and benchmark context detection

6

The machine detection script (`make_machine_json.sh`) currently looks like it will only work properly on macOS. Ideally it should work more or less correctly on all of them macOS, Linux and...

[C++] Improve C++ Orc Adapter performance and memory footprint

8

Currently the Arrow C++ provide a naive adapter implementation that allow user to read orc file to Arrow RecordBatch. However, this implementation have several drawbacks: - Inefficient conversion that incurs...

[C++] shared conversion framework for JSON/CSV parsers

2

CSV and JSON both convert strings to values in a Array but there is little code sharing beyond `arrow::util::StringConverter`. It would be advantageous if a single interface could be shared...

[C++] Let StringBuilder be constructible with a pre allocated buffer for character data

4

This is useful for example when an existing buffer can be immediately reused. This is currently used for [storage of strings in json parsing](https://github.com/apache/arrow/blob/master/cpp/src/arrow/json/parser.cc#L60), so it'd be straightforward to refactor...

[C++] Support GCP BigQuery Storage API

5

Docs:   Need to investigate the best way to do this maybe just see if we can build our client on GCP (once a protobuf definition is published to [https://github.com/googleapis/googleapis/tree/master/google)?](https://github.com/googleapis/googleapis/tree/master/google))   This...

[C++] Consolidate random string generators for use in benchmarks and unittests

3

This was discussed in here: For testing/benchmarking dictionary encoding its useful to control the number of repeated values and it would also be good to optionally include null values.  The ...