Function to refresh all materialized views in a PostgreSQL 9.4 database (for PostgreSQL 9.3 use release v1.0 that does not rely on concurrent materialized view updates).
PostgreSQL 9.4 supports materialized views but does not have a functionality to refresh the views except for issuing refresh command for each view individually. After asking on stackoverflow and not finding solution (http://stackoverflow.com/questions/19981600/how-to-refresh-all-materialized-views-in-postgresql-9-3-at-once) I decided to write my own function.
To refresh views in public
schema:
select RefreshAllMaterializedViews();
select RefreshAllMaterializedViewsConcurrently();
To refresh views in other schema:
select RefreshAllMaterializedViews('my_schema');
select RefreshAllMaterializedViewsConcurrently('my_schema');
Note: If you created the materialized view WITH NO DATA
you have'll have to first populate the Materialized Views with RefreshAllMaterializedViews() before you can use the concurrent version.