On Aug 23, 2007, at 12:25 , Ben Tilly wrote:
It is already extended in postgres. For pretty good reasons.
Yes, this particular point is moot. Whether or not the reasons are
good is another thing and a difference of opinion.
I'm not surprised that the window clause section is impenetrable to
you. Window clauses are part of the definition of analytic functions,
which postgres does NOT yet implement. However they are on the todo
list.
And being worked on, from what I gather. Just not for 8.3. So
hopefully you won't have to wait too much longer.
Michael Glaesemann
grzm seespotcode net
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
