On Wed, Apr 28, 2010 at 5:37 AM, Vlad Arkhipov <arhi...@dc.baikal.ru> wrote: > Even if it will be done it does not solve the original issue. If I > understood you right there is now no any decent way of speeding up the query > > select * > from t2 > join t1 on t1.t = t2.t > where t1.id = X; > > except of the propagating the t1.id value to the table t2 and createing and > index for this column?
No, what I'm saying is that if X is any ANY() expression, you can get a faster plan in this case by writing: SELECT * FROM t2 JOIN t1 ON t1.t = t2.t WHERE t2.id = X; For me this is about 8x faster. ...Robert -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
