[freetds] SQLPrepare() can't arrange error infomationwhenDBshutdown occured after SQLConnect()

seong hoon park seonghoon at gmail.com
Mon Jul 3 02:44:24 EDT 2006

It seems that the problem is fixed in "current" version of freetds.
Can I know when  the fix will be  merged into "stable" version ?


On 6/20/06, ZIGLIO, Frediano, VF-IT <Frediano.Ziglio at vodafone.com> wrote:
> ...
> >
> > I can confirm the problem... added a prepclose test
> >
> >
> http://freetds.cvs.sourceforge.net/freetds/freetds/src/odbc/unittests/pr
> epclose.c?revision=1.1
> >
> > the problem is that tds_submit_prepare returns error but do not set
> any
> > error. I think that correct bahavior would be to use tds_client_msg in
> > (or near) tds_close_socket.
> >
> Well... more on this... the problem is that odbc do not detect error
> correctly. tds_submit_prepare detect connection close and call correctly
> tds_client_msg as it should however odbc odbc_errmsg_handler is not able
> to add error to statement cause dbc->current_statement is not set. An
> easy fix would be to set current_statement before tds_submit_prepare
> however this would require test of libTDS state which should be a libTDS
> job... IMO a better fix would be to have the possibility to lock
> connection but this would also require some sort of unlock with all
> problems that brings... while unlocking can be done using a libTDS
> callback and no additional data locking would require addition data (for
> instance to specify statement on odbc)...
> freddy77
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