Re: [GENERAL] index vs. seq scan choice?

Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> Tom Lane wrote:
>> (The default statistics target is 10, which is widely considered too
>> low --- you might find 100 more suitable.)

> Does this mean that we should look into raising the default a bit?

Probably ... the question is to what.

The default of 10 was chosen in our usual spirit of conservatism ---
and IIRC it was replacing code that tracked only *one* most common
value, so it was already a factor of 10 better (and more expensive)
than what was there before. But subsequent history suggests it's
too small. I'm not sure I want to vote for another 10x increase by
default, though.

regards, tom lane

---------------------------(end of broadcast)---------------------------
TIP 1: if posting/reading through Usenet, please send an appropriate
subscribe-nomail command to majordomo(at)postgresql(dot)org so that your
message can get through to the mailing list cleanly

--ELM1205260229-7949-1_--