This article discusses how to manage complex filter logic in applications, particularly when dealing with large data sets. It suggests implementing part of the filtering on the client side for better testability and correctness, while still using server-side queries for performance. The author provides practical examples and considerations for when to apply this approach.

RegreSQL automates regression testing for SQL queries in PostgreSQL. It runs your SQL files, compares the output to expected results, and alerts you to any changes. The tool supports snapshot management and allows for configuration of test parameters.

Rust encourages developers to adopt best practices, such as writing tests for potential issues. In this post, the author shares their experience with a SQL migration bug in the bors project, and how they implemented a test using the sqlparser crate to prevent future occurrences of similar bugs. The article highlights the ease and effectiveness of testing in Rust, even for complex scenarios.