Query in multiple databases

[Matthew Jew]

On May 25, 2009, at 3:38 AM, valentina-request at lists.macserve.net wrote:

> Not so far, one developer have told me, they also have 255 dbs,
> With the same single table, but they have own hash-function which  
> convert
> Key of a record to an index of db.
>
> But that is read/write of some db.
>
> For search I think you self can start N search against of N dbs.
> May be in N threads to use more CPUs of computer.
> Results combine into new tmp table. RAM or disk...

I thought access to Valentina engine was limited to one thread at a  
time.
(As of version 2.5.8)

Previously, I had asked this:

 >> I asked if I still need to lock the entire engine, and I was hoping
 >> for either "yes" or "no".
 >
 > Currently the answer is - Yes.

Has this changed?

If so, what are the rules now?

- Matthew