FreeTDS Development Group

["Lowden, James K" <LowdenJK AT bernstein.com>]

If you're using the FreeTDS ODBC driver, be aware that it reports errors even 
when none exists.  If you apply the patch I posted a few days ago, be aware 
that it will mask real errors.  At least, they are not detected by the 
src/odbc/unittest/transaction.c unit test if it's been modified to cause 
them.  

Given this table and procedure:

CREATE TABLE TestTransaction ( value int )
CREATE PROCEDURE testinsert @value int AS
insert into TestTransaction values ( @value )

a clean build of 0.62.1 will return a spurious error for:

SQLCHAR * command="execute TestTransaction 1";
SQLExecDirect(stmt, (SQLCHAR *) command, SQL_NTS);

I tentatively offered a patch for this, but heeded Frediano's warning that it 
would mask errors involving multiple statements.  He is right.  If the 
procedure is changed to try to insert a character into an integer field:

CREATE PROCEDURE testinsert @value int AS
insert into TestTransaction values ( @value )
select * from TestTransaction 
insert into TestTransaction values ( 'a' )

SQLExecDirect() will *not* detect the error returned from the server (with my 
patch applied).  

At this time, there is no fix on offer.  

--jkl


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