Benchmark view refreshes #104

libs/analytics/migrations/202108061602.do.0078-benchmark-view-refresh.sql

@@ -0,0 +1,24 @@
+-- a function to refresh all materialized views
+CREATE OR REPLACE FUNCTION refresh_matviews() RETURNS INTEGER AS $$
+DECLARE
+  matview RECORD;
+  start_time TIMESTAMPTZ;
+BEGIN
+  RAISE NOTICE 'Refreshing base metaviews';
+  -- other matviews rely on contactview_metadata, which is a matview
+  -- so load this first
+  REFRESH MATERIALIZED VIEW CONCURRENTLY contactview_metadata;
+  FOR matview IN SELECT matviewname FROM pg_catalog.pg_matviews LOOP
+    IF matview.matviewname = 'contactview_metadata' THEN
+      -- this one is already done, skip it.
+      CONTINUE;
+    END IF;
+    RAISE NOTICE 'Refreshing %', matview.matviewname;
+    start_time := clock_timestamp();
+    EXECUTE format('REFRESH MATERIALIZED VIEW CONCURRENTLY %I', matview.matviewname);
+    RAISE INFO 'Finished refreshing % took %', matview.matviewname, clock_timestamp() - start_time;
+  END LOOP;
+  RAISE NOTICE 'Materialized views refreshed.';
+  RETURN 1;
+END;
+$$ LANGUAGE plpgsql;