Hi All,
Tomas Kovarik and I have presented at PGCon 2007 in Ottawa
the ideas about other possible optimizer algorithms to be used
in PostgreSQL.
We are quite new to PostgreSQL project so it took us some
time to go through the sources end explore the possibilities
how things could be
Julius Stroffek wrote:
Hi All,
Tomas Kovarik and I have presented at PGCon 2007 in Ottawa
the ideas about other possible optimizer algorithms to be used
in PostgreSQL.
We are quite new to PostgreSQL project so it took us some
time to go through the sources end explore the possibilities
Stefan Kaltenbrunner [EMAIL PROTECTED] writes:
Julius Stroffek wrote:
There is a proposal attached to this mail about the interface
we would like to implement for switching between different
optimizers. Please review it and provide a feedback to us.
hmm - how does is that proposal different
Stefan,
thanks for pointing this out. I missed this change.
We would like to place the hooks to a different place in the planner and
we would like to just replace the non-deterministic algorithm searching
for the best order of joins and keep the rest of the planner untouched.
I am not quite
Julius Stroffek [EMAIL PROTECTED] writes:
I understood that if the user creates his own implementation of the
planner which can be stored in some external library, he have to provide
some C language function as a hook activator which will assign the
desired value to the planner_hook
Tom,
Also, while we might accept
a small hook-function patch for 8.3, there's zero chance of any of that
other stuff making it into this release cycle.
I don't think anyone was thinking about 8.3. This is pretty much 8.4
stuff; Julius is just raising it now becuase they don't want to go
Josh Berkus [EMAIL PROTECTED] writes:
Tom,
Also, while we might accept
a small hook-function patch for 8.3, there's zero chance of any of that
other stuff making it into this release cycle.
I don't think anyone was thinking about 8.3. This is pretty much 8.4
stuff; Julius is just raising
