EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Hacker News·Sep 7·5 min read
PostgreSQL 19 Interactive Tour
TL;DR
PostgreSQL 19 is currently in beta, showcasing new features that enhance its functionality. This article provides hands-on examples to illustrate these updates, aiding developers in understanding the changes.
✦ Why It Matters
Start experimenting with PostgreSQL 19 beta features to prepare for the official release.
Key Takeaways
- Utilize property graphs for simplified SQL queries.
- Implement FOR PORTION OF for precise updates on range columns.
- Leverage new autovacuum scoring for efficient table maintenance.
- Adopt pg_plan_advice for better query planning control.
How It Works
Property graphs allow users to define relationships between data points in a more intuitive way, enabling complex queries without extensive joins. The FOR PORTION OF clause intelligently modifies only specified time ranges in data, making updates and deletions more efficient.
The new autovacuum scoring system prioritizes tables needing maintenance based on their state, ensuring timely processing.