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What’s New in PostgreSQL 18 – a Developer’s Perspective
PostgreSQL 18 was officially released on September 25, 2025. No doubt the most consequential change is the new Asynchronous I/O (AIO) subsystem. However, this p...
Space Saving: For derived data that doesn't need physical storage, virtual columns eliminate redundant disk usage. On the other hand, STORED generated columns remain valuable for heavy computations that rarely change, where the performance cost of repeated calculation outweighs storage concerns. If you've ever spent time debugging the infamous ERROR 42501: permission denied messages, you'll appreciate having a unified way to inspect object privileges.
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