Heikki Linnakangas <hlinnakan...@vmware.com> writes: > On 09/22/2014 07:47 AM, Rajeev rastogi wrote: >> So my proposal is to skip the condition check on the first scan key >> condition for every tuple.
> The same happens in a single-column case. If you have a query like > "SELECT * FROM tbl2 where id2 > 'a'", once you've found the start > position of the scan, you know that all the rows that follow match too. ... unless you're doing a backwards scan. regards, tom lane -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers