CREATE OR REPLACE FUNCTION refresh_community_tops() RETURNS int AS $$DECLAREBEGIN TRUNCATE TABLE _top_community; FOR my_community IN SELECT id, path FROM _community LOOP END LOOP; RETURN 1;END;$$ LANGUAGE plpgsql;-------------------------------------------------------psql:stats_communities.sql:17: ERROR: loop variable of loop over rows must be record or row variable at or near "LOOP" at character 197psql:stats_communities.sql:17: LINE 10: FOR my_community IN SELECT id, path FROM _community LOOPpsql:stats_communities.sql:17: ------------------------------------------------------------------------