Apache Arrow Reaches 1.0
Written by Kay Ewbank   
Monday, 03 August 2020

Apache Arrow 1.0 has been released, with a better metadata version and support with dictionary indices along with improved C++ libraries.

Apache Arrow is a columnar in-memory analytics layer the permits random access. It is language independent, can be used for flat and hierarchical data, and the data store is organized for efficient analytic operations. It also provides computational libraries. Languages currently supported are C, C++, C#, Go, Java, JavaScript, MATLAB, Python, R, Ruby, and Rust.

asf logo

The metadata version is now at version V5, which does mean an incompatible change in the buffer layout of Union types. All other types keep the same layout as in V4. The improved dictionary indices can now be made on unsigned integers rather than only signed integers.

The Flight element of Arrow has also been updated. Flight provides stream management and is intended to overcome the problem that Apache Arrow's primary medium is in-memory data, but not all systems can be co-located. Flight now offers DoExchange, a fully bidirectional data endpoint, in addition to DoGet and DoPut, in C++, Java, and Python. The C++ and Python libraries for Flight now expose more options from gRPC, including the address of the client (on the server) and the ability to set low-level gRPC client options. Flight also supports mutual TLS authentication and the ability for a client to control the size of a data message on the wire. C++ support has also been improved, with better support for static linking with Arrow.

The compute kernel layer has been extensively reworked, and now offers a generic function lookup, dispatch and execution mechanism. Around 30 new array compute functions have also been added.




asf logo


More Information

Apache Arrow Website

Related Articles

Apache Arrow Flight Released

Apache Arrow Adds DataFusion Rust-Native Engine

Apache Arrow Adds Streaming Binary Format

Databricks Delta Adds Faster Parquet Import

Apache Kudu 1.9 Adds Location Awareness

Apache Kudu Improves Web Interface 



To be informed about new articles on I Programmer, sign up for our weekly newsletter, subscribe to the RSS feed and follow us on Twitter, Facebook or Linkedin.


Rust Twice As Productive As C++

Google director of engineering, Lars Bergstrom, gave a talk at the recent Rust Nation UK conference and claimed that Rust was twice as productive as C++. Given how good Google is at C++, this is quite [ ... ]

The Appeal of Google Summer of Code

With the list of participating organizations now published, it is time for would-be contributors to select among them and apply for Google Summer of Code (GSoC). Rust has joined in the program fo [ ... ]

More News

raspberry pi books



or email your comment to: comments@i-programmer.info