FreeTDS Development Group

[Frediano Ziglio <freddy77 AT gmail.com>]

2014-12-05 15:03 GMT+00:00 Alex Derbes <dervish AT gmail.com>:
> I have FreeTDS 0.91 installed on Mac OSX 10.10. When Querying a SQLServer
> 2012 database, columns defined with double precision numbers are truncated
> to single precision. I've checked the query with both sqsh and with the
> python pymssql driver and get the same result.
>
> Is it possible that I need to set something in my freetds.conf file to
> enable double precision math?
>
> Or is it possible that the column definition in the SQL Server database is
> being incorrectly marshaled to a single precision number?
>
> Thanks,
> --Alex Derbes
>
> The version of FreeTDS came from brew, here is the version information:
>
> freetds: stable 0.91, HEAD
>
> http://www.freetds.org/
>
> /usr/local/Cellar/freetds/0.91_2 (600 files, 10.0M) *
>
>   Built from source
>
> From:
> https://github.com/Homebrew/homebrew/blob/master/Library/Formula/freetds.rb


I don't think FreeTDS will loose precision on protocol. Double
precision is very old and supported by all TDS versions.
What I think is that the conversion just format the string will less
precision than what you expect.
Some time ago there has been a patch on this direction. Can you try a
snapshot version? See http://www.freetds.org/software.html.

Frediano