On Wed, 2005-12-14 at 21:27 -0500, Tom Lane wrote:
> I've spent some time looking into how we can improve our planning of outer
> joins.
Sounds good.
> I'm not sure whether we'd need any additional planner knobs to control
> this. I think that the existing join_collapse_limit GUC variable should
> continue to exist, but its effect on left/right joins will be the same as
> for inner joins. If anyone wants to force join order for outer joins more
> than for inner joins, we'd need some other control setting, but I don't
> currently see why that would be very useful.
Agreed. No additional GUCs required.
> Does this seem like a reasonable agenda
Yup - tis good.
Best Regards, Simon Riggs