Breaking the rules with expression expansion
by Rodrigo Girão Serrão
Polars has a rule that one expression must produce a single column as a result in a query. How do some expressions break this rule?
Thu, 5 Dec 2024Polars in Aggregate: Faster I/O, inequality joins, and much more
by Rodrigo Girão Serrão
This edition covers plenty of performance improvements made to I/O, inequality joins, and much more.
Wed, 4 Dec 2024Understanding Polars data types
by Rodrigo Girão Serrão
Learn about all Polars data types, including when to use them and how to use them.
Tue, 26 Nov 2024Efficient Cloud Data Processing with Polars – a DB Systel Case Study
by Sebastian Folz, Maren Westermann (Machine Learning Engineers @ DB Systel GmbH)
The largest german railway company achieves nearly 20x speedup in data processing and identifies significant potential for cost savings on cloud resources.
Thu, 17 Oct 2024Joulen accelerates the transition to sustainable energy practices using Polars
by Liam Brannigan (Data Team Lead) @ Joulen
Joulen builds a highly scalable and cost-effective infrastructure with Polars to power tools to optimize the use of renewable assets.
Wed, 25 Sept 2024GPU acceleration with Polars and NVIDIA RAPIDS
by Ritchie Vink, Robin van den Brink, Lawrence Mitchell
Polars and NVIDIA RAPIDS have worked together to bring GPU acceleration to Polars.
Tue, 17 Sept 2024