Hi Pavel, Thanks for your reply. My understanding is that Explain provides measurements of query run time but does not include or specifies the timing for planning and for running optimization algorithms. Pls let me know if my understanding is not correct. In that case, how do I find out how much of query time is spent to prepare the query and how much time is spent executing it. Thanks, James On Dec 27, 2011, at 1:38 AM, Pavel Stehule <pavel.stehule@xxxxxxxxx> wrote: > Hello > > 2011/12/23 Igor Schtein <ischtein@xxxxxxxxx>: >> I'd like to find some measurements/figures of query preparation and planning >> time to justify the use of prepared statements and stored procedures. >> I know that complex queries have larger preparation time. Though, is it >> possible to explicitly measure the time the optimizer spends parsing and >> planning for query execution? > > You can use time for EXPLAIN statement > > Regards > > Pavel Stehule > >> >> Thank you, >> James -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
