Win Thunderbird doesn't use SQUAT index

[Ciprian Vizitiu]

> > search takes ages and SQUAT index is obviously not used.
> 
> The squat index is something that's used exclusively by the 
> Cyrus server and not something that the client is in control 
> of.  Either the SEARCH that you're performing doesn't 
> need/use the squat index, or something else is going on.

Something IS going on. I've just did a test in a 2.6GB mailbox with some ~50
folders because I also got the feelin' that Thunderbird 4 Windows is slower
but never bothered. 

First, since I have the XP box and the Linux one near the other I could
press "Search" in the same moment. :-) Thunderbird on Linux wins hands down,
at least two times faster. I've then watched the logs while repeating the
search with different words... SQUAT messages seemed to came in for both
searches. BUT! Repeating again the search with each of the machines
separately shows that:

1. Thunderbird chooses the folders in a very different way depending on
whether the OS is M$ or Linux. 
2. Answers come one by one in T4L, a bunch of them in T4W. Probably a UI
matter?
3. "SQUAT returned xyz messages" show up in logs for BOTH of them. So yes
T4W *is using SQUAT* much like T4L
4. Most important: one can see the entries in the logs with "SQUAT returned
xyz messages" showing up at a definitely slower rate when the search is run
by T4W as opposed to T4L. 

The T4W run on a P4 3.2GHz 2GB RAM XP SP2 no other tasks. T4L run on a
3.0GHz 1GB RAM with KDE...