Sorry working to late at night.... Query works just a typo
the following works.
WHERE
Lead.CreationDate = (SELECT MIN(LL.CreationDate) FROM Lead AS LL
WHERE LL.ProspectID = Lead.ProspectID)
sorry for the previous post,
Roger
Niederland wrote:
> Before postgresql 8.1.5, I could do the following to find the first
> lead that created a prospect in my application.
>
> SELECT
> Lead.LeadID,
> Prospect.ProspectID
> FROM
> Prospect INNER JOIN Lead USING (ProspectID)
> WHERE
> Lead.CreationDate = (SELECT MIN(Lead.CreationDate) FROM Lead AS LL
> WHERE LL.ProspectID = Lead.ProspectID)
>
> With 8.1.5 this now generates:
> ERROR: aggregates not allowed in WHERE clause
> SQL state: 42803
>
> Shouldn't aggregate functions still work within correlated subQueries?
> I saw in the 8.1.5 release notes that this was disabled due to crashes
> this caused in 8.1.X versions for Postgresql. I have never experienced
> this with queries similar to the above.
---------------------------(end of broadcast)---------------------------
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
