News — 2026-07-15

• Build a semantic ontology to power AI assistants on AWS – Part 1
  AWS Database Blog · by Rahul Shaurya
• Pg_re2: Postgres extension for fast, RE2-powered regular expressions in Postgres
  HackerNews · 16 points · 1 comments · by saisrirampur · HN discussion
• Why Huge Pages matter for Postgres
  HackerNews · 6 points · by thunderbong · HN discussion
• Show HN: Approv – human approval and a signed audit trail for AI agent actions
  HackerNews · 2 points · by Mersall · HN discussion