back-sql fix

["Pierangelo Masarati" <ando@sys-net.it>]

Dear all,

I went back to back-sql after some time I didn't test it,
and I found a stupid bug that caused sistematic entry
rejection when global schemacheck is enabled.  It is now
fixed in HEAD (and hopefully in next release).  I'm using
postgresql, so I cannot ensure everything now works also
with other rdbms.  Those who can, please test and notify
further problems.

Sorry about that.

Pierangelo.

-- 
Pierangelo Masarati
mailto:pierangelo.masarati@sys-net.it