Hello > The reason I dont have condition when selecting is it's faster than having. > Because my aim is to go through every row, find values of few columns and append them to a summary table. Then > delete the row from the table. So find the rows on the fly is fine for me. > > I have tried to reduce the number of rows to be processed, even I process 1 row in production machine, it takes 24 > hours to finish. This is quite weird... It there any other process locking the record or the table? Bye Charles > > Regards, > Haiming > > > > -- > View this message in context: http://postgresql.nabble.com/Fast-way-to-delete-big-table-tp5903787p5903917.html > Sent from the PostgreSQL - general mailing list archive at Nabble.com. > > > -- > Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-general -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general