REFRESH MATERIALIZED VIEW completely replaces the contents of a materialized view. To execute this command you must be the owner of the . You need some kind of scheduler that runs refresh materialized view e. Trigger to update a materialized view once after relevant. Analyze needed after a refresh materialized view ? Here are some basic rules to improve refresh performance.
Unlike indexes, materialized views are not automatically updated with every data change. They must explicitly be refreshed , either on every commit, on a periodically time schedule or – typically in data warehouses – at the end of an ETL job. As we discusse materialized views are updated via a refresh query. Depending on your situation, you could run the refresh query on a schedule , or you could set up database triggers to run the refresh. The materialized views are useful in . Schedule an automatic job that will refresh the view once in a given time.
But what if it takes too long to refresh the materialized views ? PostgreSQL experiences.

A job could be scheduled to update the statistics each night using this SQL statement: REFRESH.



