I'm reviewing some function I wrote to add stable, immutable where needed and I'd like to take the chance to add further "cheap" optimisation if it helps.
There are many places where I know a function or a statement will return just one row? Is it helpful to add LIMIT 1? eg. select a, b from myfunction(3,5) limit 1; select into a,b x,y from tablename where z=5 and u=7 limit 1; select a,b from from tablename where z=5 and u=7 limit 1; thx -- Ivan Sergio Borgonovo http://www.webthatworks.it -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
