Martin Devera <[EMAIL PROTECTED]> writes:
> Inner semijoin scans its left input outputting all rows which
> has its pair in right input but doesn't duplicate result when
> there are duplicates at right.
> The WHERE IN(select...), corelated EXISTS and ANY are
> converted to it. This semijoin is sim
Hello,
probably you remember my crazy idea involving using indexes
directly in scans (and resulting speedup).
The idea was given to me by experiences with M$SQL (it is
yes another M$ soft but its planner is probably better
than pg's - no flames please).
Because I studied M$ again I've got another
