Robert Haas <[email protected]> writes:
> On Mon, Mar 29, 2010 at 4:33 AM, Simon Riggs <[email protected]> wrote:
>> So I think we need a parameter for join removal also.
> I had this in my original patch but Tom wanted it taken out.
And I still don't want it. We are NOT going in the direction of adding
an enable_ knob for every single planner activity --- do you have the
faintest idea how many there would be? We have such knobs for a small
number of cases where it's arguable that the action might be the wrong
thing for a particular query. Join removal, if applicable, can't
possibly be the wrong choice; it's better than every other join strategy.
regards, tom lane
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