Query 1B Rows in PostgreSQL >25x Faster with Squirrels!
· 5 min read
The One Billion Row Challenge has been making waves in the data engineering community lately. Originally created to test CSV parsing performance, the challenge involves processing a file containing 1 billion weather measurements to calculate basic temperature statistics for each city. In this post, I'll tackle a variation of this challenge using PostgreSQL and demonstrate how to achieve dramatic performance improvements using Squirrels.
The Challenge​
The original One Billion Row Challenge focuses on raw CSV processing performance. For our variation, we'll:
- Load 1 billion rows into PostgreSQL with additional columns
- Query for city-level temperature statistics
- Create a Squirrels project to serve these analytics via REST API
- Demonstrate significant query performance improvements
- Show how to handle incremental data updates