as Matt says:

'> I already took a look at using SQL, but this quote:
>
> | NB:  This should be considered BETA, and the interface, schema, or
> | overall operation of SQL support may change at any time with future
> | releases of SA.
>
> stops me from using it. Unfortunately, I can not run software officially
> considered Beta on this system.
>   
I think that documentation line is obsolete, and has probably been
overlooked for a long time.

SQL support has been in SA since 2004, and was touted as a major feature
of SA 3.0.0.

http://mail-archives.apache.org/mod_mbox/spamassassin-announce/200409.mbox/browser

The 3.1.0 release announcement declared SQL to be THE preferred method
for bayes storage, even for single-box setups.

http://mail-archives.apache.org/mod_mbox/spamassassin-announce/200509.mbox/%3c20050914235232.814A45900BA@radish.jmason.org%3e

---------

- added PostgreSQL, MySQL 4.1+, and local SDBM file Bayes storage modules. SQL
  storage is now recommended for Bayes, instead of DB_File. NDBM_File support
  has been dropped due to a major bug in that module.
---------



That said, yes, they might change the schema or operation in a future
version.. But the same goes for DB files. It's happened once already..

But this is not beta, it's the recommended configuration.'