Re: [ADMIN] A *short* planner question

2002-04-13 Thread Tom Lane
"Nick Fankhauser" <[EMAIL PROTECTED]> writes: > ... In addition, since we're using a "like", typing > in only an initial char would get roughly 1/26 of the rows back- Does the > planner look at the number of leading chars provided when coming up with a > plan? Yeah it does, if it can see a consta

Re: [ADMIN] A *short* planner question

2002-04-13 Thread Nick Fankhauser
> Hmm. If the outer side of the nestloop were actually hitting 2696 rows > on average, it wouldn't be "lightning fast". So the planner's failure > to choose this plan is probably due to this overestimate. This may be a reasonable estimate- as you might have gathered, we're matching people to c