A Materialized View in PostgreSQL is a database object that stores the result of a query physically on disk, unlike a regular view that only stores the query itself. Materialized views improve performance for complex queries but require manual refreshing to update the stored data.

 Key Takeaways

• PostgreSQL requires manual or scheduled refresh and does not support incremental refresh.
• PostgreSQL requires explicit query changes to use materialized views effectively.
• PostgreSQL supports REFRESH CONCURRENTLY, reducing locking issues, while Oracle handles this natively.
• PostgreSQL does not support incremental Refresh for Large Data
• PostgreSQL does not support Real-time Data Updates