Tagged: postgresql

2 posts with this tag.

December 03, 2025

PostgreSQL Logical Replication and Schema Changes

PostgreSQL logical replication does transmit schema information via Relation messages, but only when data is modified, not when DDL executes. This timing makes it problematic for read replicas but perfectly suited for caching systems.

October 23, 2025

postgresql performance

PostgreSQL Query Optimizations

Examining how PostgreSQL's query optimizer has evolved from version 9.6 to 18.0, looking at three key SQL transformations.

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