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apache / arrow-julia / refs/tags/v1.2.0
tag61a1d6d4ed660e1778a1decdddbee07c85cd882e
taggergithub-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>Tue Jan 19 18:30:24 2021 +0000
object12eb00a2f6b076094fa408853d98ef2415fce1ea 
## Arrow v1.2.0

[Diff since v1.1.0](https://github.com/JuliaData/Arrow.jl/compare/v1.1.0...v1.2.0)


**Closed issues:**
- Error with DatePart('Z') (#81)
- Cannot `copy` a DataFrame containing a DictEncoded field with a missing value (#101)

**Merged pull requests:**
- change UUID <-> Arrow mapping to (de)serialize to/from 16-byte FixedSizeBinary (#103) (@jrevels)
- add isbitstype optimized path for FixedSizeList getindex (#104) (@jrevels)
- bump Project.toml to v1.2.0 (#107) (@jrevels)
commit12eb00a2f6b076094fa408853d98ef2415fce1ea[log] [tgz]
authorJarrett Revels <jarrettrevels@gmail.com>Tue Jan 19 13:12:53 2021 -0500
committerGitHub <noreply@github.com>Tue Jan 19 11:12:53 2021 -0700
tree78610e844a93b29bd97ba54f594f4d6515e80846
parent76ee57d90d1c1aa8da6db8973eac6de0718ea7f5 [diff]
bump Project.toml to v1.2.0 (#107)
1 file changed
tree: 78610e844a93b29bd97ba54f594f4d6515e80846
  1. .github/
  2. docs/
  3. scripts/
  4. src/
  5. test/
  6. .gitignore
  7. LICENSE.md
  8. Project.toml
  9. README.md
README.md

Arrow

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This is a pure Julia implementation of the Apache Arrow data standard. This package provides Julia AbstractVector objects for referencing data that conforms to the Arrow standard. This allows users to seamlessly interface Arrow formatted data with a great deal of existing Julia code.

Please see this document for a description of the Arrow memory layout.

Installation

The package can be installed by typing in the following in a Julia REPL:

julia> using Pkg; Pkg.add("Arrow")

or to use the official-apache code that follows the official apache release process, you can do:

julia> using Pkg; Pkg.add(url="https://github.com/apache/arrow", subdir="julia/Arrow.jl")

Difference between this code and the apache/arrow/julia/Arrow repository

The code in the apache/arrow repository is officially part of the apache/arrow project and as such follows the regulated release cadence of the entire project, following standard community voting protocols. The JuliaData/Arrow.jl repository can be viewed as a sort of “dev” or “latest” branch of this code that may release more frequently, but without following official apache release guidelines. The two repositories are synced, however, so any bugfix patches in JuliaData will be upstreamed to apache/arrow for each release.

Format Support

This implementation supports the 1.0 version of the specification, including support for:

  • All primitive data types
  • All nested data types
  • Dictionary encodings and messages
  • Extension types
  • Streaming, file, record batch, and replacement and isdelta dictionary messages

It currently doesn't include support for:

  • Tensors or sparse tensors
  • Flight RPC
  • C data interface

Third-party data formats:

  • csv and parquet support via the existing CSV.jl and Parquet.jl packages
  • Other Tables.jl-compatible packages automatically supported (DataFrames.jl, JSONTables.jl, JuliaDB.jl, SQLite.jl, MySQL.jl, JDBC.jl, ODBC.jl, XLSX.jl, etc.)
  • No current Julia packages support ORC or Avro data formats

See the full documentation for details on reading and writing arrow data.