I have inherited an application that populates a number of temp.y tables using create table ... as select ... This is taking roughly five to ten minutes to run As this process hammers the database, I can only run benchmarks at night so am asking here if anyone know if create table ...; then insert into ... as select... ; would be faster. or if anyone can suggest an alternative I may have missed. I am happy to move code server side if need be. TIA Jacqui I know these is not a lot of detail in the above - the system is under NDA and I need to check with my employer before I give out any system details. Before you ask it is not a big customer - just a very paranoid one :-) -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general