Hi Yury;
I checked with the Engineering team and thus far, we have not had any customers (that we know of) implement this feature. As David points out, it might be transparent to PB's current O12c drivers or the PB's driver might block some of the related features of PDB/CDB as it does not yet understand how to deal with certain special commands (DDL/DML statements). The only way to be sure right now would be to give PB2017R2/R3 a try with this O12c feature and see if it works.
Appeon Engineering has now added this feature to the list of PB enhancements so that we make sure that Appeon tests this feature in the next round of development (after R3 of course).
FYI: The PB2018 C# team will look at this feature in more detail after PB2018 ships. However as David also points out - the ADO.Net driver may handle this feature adequately initially. Something that Appeon Engineering though will review after the C# feature ships.
If there are any changes, I'll try and post back here with any updates.
Regards ... Chris