pg-osc

pg-osc (Online Schema Change) is a CLI tool for making non-blocking schema changes to large PostgreSQL tables. It creates a shadow table, copies data incrementally, and swaps tables with minimal downtime. Ideal for high-traffic applications, pg-osc lets teams modify database structures safely in production environments.

Features

Perform non-blocking ALTER TABLE operations
Uses shadow table and trigger-based syncing
Minimal downtime during schema changes
Progress reporting and resumable execution
CLI interface for ease of use and automation
Safe rollback and dry-run capabilities

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License

MIT License

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Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

Ruby

Related Categories

Ruby Database Software

Registered

2025-06-17

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