Hi, Roman!

> > I think it would creating yet another version of the XSQLDA
> that would
> > need to be supported in perpetuity for no gain.
>
> One more question: what are XSQLDA.sqldaid and XSQLDA.sqldabc
> fields for? API Reference says "Reserved for future use". 8
> bytes of rdb$db_key and 4 bytes of record version fit nicely
> here. Maybe it is already that very "future use"?

You should go to IBM documentation.
Interbase/Firebird DSQL interface is created from IBM specs. See the
example:

http://publib.boulder.ibm.com/html/as400/v4r5/ic2924/index.htm?info/db2/
rbafzmst154.htm

Nickolay Samofatov