Comment by jean.cav...@gmail.com:I think using the recent Dict field (which is currently stored as an encoded json string but could use the json datatypes in dbs that support it) is being considered.
Also, one of the most common use of Property field is to manage multi-company dbs, whose support may be dropped shortly (cf tryton groups).
For more information: https://code.google.com/p/tryton/wiki/Performance
