Re: [HACKERS] Re: order by and index path

>     could return at max 8999 tuples and
>
>         WHERE key > 50 AND key < 70
>
>     has  a  maximum  of  998  result  tuples.  This  would be the
>     information required to make the right decision for the  case
>     where all rows selected are wanted.
>
>     We  do  not  have  this statistical information. So the whole
>     thing is at this time academic.

But we do have statistical information in pg_statistic if you run vacuum
analyze.


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