Stephan Szabo wrote:
>
> Well, the reason I asked is to see both whether the estimates for the
> various columns were somewhere near reality (if not, then you may need to
> raise the statistics target for the column) which might affect whether
> it'd consider using a multi-column index for the conditions and sort
> rather than the index scan it was using.
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
I'm going to have to pull out the 'Practical PostgreSQL' book and brush
up on optimizing. This level of optimization is not something I have
had to deal with in the past.
Also to make this interesting. The sub-query method is faster at times
and slower in others. But doing two separate queries and working on
the PostIDNumber field exclusively is always blazingly fast...
Martin Foster
Creator/Designer Ethereal Realms
martin@ethereal-realms.org
