[freetds] Duplicate rows returned with one particular query
James K. Lowden
jklowden at freetds.org
Wed May 16 18:11:31 EDT 2007
Jeff Dahl wrote:
> Luke Benstead wrote:
> > It looks as though I'm not the only one who has experienced this:
> >
> > http://lists.ibiblio.org/pipermail/freetds/2006q1/019851.html
> > http://archives.devshed.com/forums/development-94/warning-return-as-copy-of-last-result-row-was-warning-1897372.html
> >
> I believe this was fixed with v0.64.
Indeed. It's definitely solved in the current snapshot:
$ echo 'select max(a) as foo from (select cast(null as int) as a) as test'
| bsqlodbc -S$S -U$U -P$P
foo
----------
NULL
bsqlodbc: error 8153: 01003: [FreeTDS][SQL Server]Warning: Null value is
eliminated by an aggregate or other SET operation.
I wrote bsqlodbc because so many ODBC questions arise in complex
environments with FreeTDS somewhere in the middle. Try your query with
it. If if fails, you have a FreeTDS problem. If it succeeds, you *might*
have a FreeTDS problem, but it manifests itself at higher elevations.
HTH.
--jkl
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