On 2010-03-08 11:17 +0200, Pierre C wrote: > - index skip scans (well, MySQL doesn't really do index skip scans, but > since it can do index-only scans, it's an approximation)
As far as I can tell, we already do index skip scans: => create index foo_a_b_idx on foo(a,b); CREATE INDEX => explain analyze select * from foo where b = 2; QUERY PLAN --------------------------------------------------------------------------- Index Scan using foo_a_b_idx on foo (cost=0.00..20.30 rows=5 width=8) (actual time=0.027..0.057 rows=1 loops=1) Index Cond: (b = 2) Total runtime: 0.075 ms (3 rows) Regards, Marko Tiikkaja -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers