Hi,
the tuple vocab adds functionality on top of the mongodb.driver vocab. The
"_mfd_t_info" field is used to keep reference to the factor tuple class - it
is needed to automatically deserialize the bson structure to the matching
class.
If you're concerned about storage space, just use the low-level
mongodb.driver vocab and do the mapping in your code by hand.
Sascha
On Sat, Jul 31, 2010 at 04:18, Vladimir Darmanian <
[email protected]> wrote:
> One more thing: a "_mfd_t_info" field is inserted into the database for
> every row when using the tuple vocab - is this intended behavior?
>
> That seems like a waste of space - I expected the tuple vocab to be a
> wrapper over the driver vocab in which case it shouldn't add anything the
> driver vocab doesn't add (and the driver vocab doesn't add any fields other
> than what you specify).
>
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