Can anyone tell me what's going on here? I hope this doesn't mean my system tables are corrupt... Thanks, Craig select relname, pg_relation_size(relname) from pg_class where pg_get_userbyid(relowner) = 'emol_warehouse_1' and relname not like 'pg_%' order by pg_relation_size(relname) desc; ERROR: relation "rownum_temp" does not exist emol_warehouse_1=> select relname from pg_class where relname = 'rownum_temp'; relname ---------------------- rownum_temp (1 row) emol_warehouse_1=> \d rownum_temp Did not find any relation named "rownum_temp". emol_warehouse_1=> create table rownum_temp(i int); CREATE TABLE emol_warehouse_1=> drop table rownum_temp; DROP TABLE emol_warehouse_1=> select relname, pg_relation_size(relname) from pg_class where pg_get_userbyid(relowner) = 'emol_warehouse_1' and relname not like 'pg_%' order by pg_relation_size(relname) desc; ERROR: relation "rownum_temp" does not exist emol_warehouse_1=> select relname, pg_relation_size(relname) from pg_class; ERROR: relation "tables" does not exist -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance