On Fri, Dec 16, 2011 at 21:32, Jaime Casanova <jaime@2ndquadrant.com> wrote:
> Actually i tried some benchmarks with the original version of the
> patch and saw some regression with normal pgbench runs, but it wasn't
> much... so i was trying to found out some queries that show benefit
> now that we have it, that will be a lot more easier
Ah, one more trick for testing this patch: if you build with
-DDEBUG_CACHEEXPR=1 then EXPLAIN VERBOSE displays cached
subexpressions between a CACHE[...] marker.
Regards,
Marti