>
> I'd look here:
>
> SELECT
> name
> FROM
> vendor
> WHERE
> bom_item.vendor_key =
> (
> SELECT
> vendor_key
> FROM
> mfg_vendor_relationship
> WHERE
> bom_item.mfg_key = mfg_key
> AND
> prefered = TRUE
> AND
> bom_item.project_key = project_key
>
> )
>
>
> --
> Angular momentum makes the world go ‘round.
You might get away with adding
group by vendor_key
if it turns out you’re simply getting many copies of vendor key from that inner select.
Run it alone to see.