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I rewrote PostHog's SQL parser, 70x faster, while barely looking at the code

🚀 "SQL Parser Turbocharged: 70x Faster Rewrite"

Rewriting PostHog's SQL parser resulted in a 70x performance boost, showcasing the impact of optimized code on processing speed. This significant upgrade enhances the efficiency of SQL parsing, benefiting applications reliant on swift data querying and analysis. Efficient SQL parsing accelerates data insights.

8:05 pm, June 24, 2026

guid

https://news.ycombinator.com/item?id=48663544

source_url

https://posthog.com/blog/sql-parser

author_name

robbie-c

id: 4152
uid: Son0j
insdate: 2026-06-24 20:05:14
title: I rewrote PostHog's SQL parser, 70x faster, while barely looking at the code
additional: 🚀 "SQL Parser Turbocharged: 70x Faster Rewrite"

Rewriting PostHog's SQL parser resulted in a 70x performance boost, showcasing the impact of optimized code on processing speed. This significant upgrade enhances the efficiency of SQL parsing, benefiting applications reliant on swift data querying and analysis. Efficient SQL parsing accelerates data insights.
category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=48663544
source_url: https://posthog.com/blog/sql-parser
updated:
image:
author_name: robbie-c
author_link:
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