Sorry,  I reversed the last part.  

adddate(p.MLS_Timestamp, 125) >= timestamp is FASTER than p.MLS_Timestamp >= 
subdate(timestamp,125).

Any suggestions?

Thanks!
John

Quoting Peter Willadt <[EMAIL PROTECTED]>:

> Hello,
> > This query executes very fast...
> >
> [...]
> >
> > While this query takes over 30 seconds to execute:
> >
> [...]
> >
> > The only difference between the queries is:
> > p.MLS_Timestamp >= subdate(timestamp,125)   is replaced by
> > adddate(p.MLS_Timestamp, 125) >= timestamp
> >
> in the first case there is one subtraction for the query,
> while in the second case there is one addition for every candidate row.
> So the results should be quite expected (as subtraction and addition take 
> about probably the same time).
> 
> Peter Willadt
> 
> 
> 




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