Hello, Two options for data (>1M), may I know which one better please?
(1) copyOut (JDBC copyManager) t1 into a.csv delete t2 where pk.cols in t1 copyIn t2 from a.csv (2) setautoCommit(false); delete t2 where pk.cols in t1; insert t2 select * from t1; Thank you Emi -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance