asfimport

[Python] pa.array raises for mixed scalar types (float16 + int)

1

pa.array raises with mixed scalars for np.float16 and a numpy int:  ```java In [1]: import numpy as np ...: import pyarrow as pa ...: pa.array([np.float16(1.5), np.int64(5)]) --------------------------------------------------------------------------- ArrowInvalid Traceback (most...

[GLib] Add Duration type support

2

**Reporter**: [Kenta Murata](https://issues.apache.org/jira/browse/ARROW-7730) / @mrkn **Note**: *This issue was originally created as [ARROW-7730](https://issues.apache.org/jira/browse/ARROW-7730). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*

[GLib] Add support for arrow::DictionaryBuilder

2

**Reporter**: [Kouhei Sutou](https://issues.apache.org/jira/browse/ARROW-4919) / @kou **Note**: *This issue was originally created as [ARROW-4919](https://issues.apache.org/jira/browse/ARROW-4919). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*

[C++][Python] Set up testing for backwards compatibility of the parquet reader

1

Given the recent parquet compat problems, we should have better testing for this. For easy testing of backwards compatibility, we could add some files (with different types) written with older...

[C++] Support for textual, JSON schema representation

18

Currently, Arrow has no textual representation for its schema that could serve the same purposes as JSON-Schema for JSON, the .proto files for Protobuf, etc. This issue is about adding...

[C++][Parquet] Schema resolution: map encoding

1

Related: PARQUET-441 and PARQUET-442 **Reporter**: [Wes McKinney](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=wesm) / @wesm **Note**: *This issue was originally created as [PARQUET-443](https://issues.apache.org/jira/browse/PARQUET-443). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*

[C++][Parquet] Develop external predicate pushdown API for column readers

1

This will happen significantly downstream of where we are at right now, but we should be planning ahead to facilitate scanning Parquet files with externally-defined predicates as a primary use...

[C++][Parquet] Add ability to parse nested schemas from text specification like parquet-mr

1

related to PARQUET-442 **Reporter**: [Wes McKinney](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=wesm) / @wesm **Note**: *This issue was originally created as [PARQUET-510](https://issues.apache.org/jira/browse/PARQUET-510). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*

[C++][Parquet] Determine a good default page size

1

Currently we have 1MB as the default data page size in parquet-cpp as in parquet-mr. We should communicate with the other parquet implementations if this is a good value and...

[C++][Parquet] Remove redundant total_byte_size calculation

1

The `total_byte_size` of a rowgroup is being redundantly computed. Use `total_bytes_written_` passed by the writer instead. https://github.com/apache/parquet-cpp/blob/master/src/parquet/file/metadata.cc#L471 **Reporter**: [Deepak Majeti](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=mdeepak) / @majetideepak **Note**: *This issue was originally created as [PARQUET-730](https://issues.apache.org/jira/browse/PARQUET-730)....