If you are using this driver then your combination of DBD::Sybase and
libraries (most likely FreeTDS) does not support ? style placeholders.
This storage driver uses DBIx::Class::Storage::DBI::NoBindVars as a base.
This means that bind variables will be interpolated (properly quoted of course)
into the SQL query itself, without using bind placeholders.
More importantly this means that caching of prepared statements is explicitly
disabled, as the interpolation renders it useless.
In all other respects, it is a subclass of