➔ Polars py-1.42.1 - Panic Fixes and Parquet Metadata
| 4 minute read
Polars py-1.42.1 was published on June 30, 2026 as the Python Polars 1.42.1 release. This stable patch release is not a prerelease, and its useful theme is fewer panics around parquet scans, grouped aggregation, projection pushdown, temporal extraction, and value replacement.
➔ Choosing Data Stores, Storage Formats, and Lifecycle Management on AWS
| 15 minute read
Previous: Data Preparation and Orchestration
Book: AWS Certified Data Engineer Associate Study Guide Authors: Sakti Mishra, Dylan Qu, Anusha Challa Publisher: O’Reilly Media ISBN: 978-1-098-17007-3
Chapter 5 is where the book gets into data store management. Domain 2 territory on the exam, and a big one. How do you pick the right storage? What file format should you use? How do you keep your S3 bill from growing out of control?