I am sorry for the inconvenience you experienced.
Currently, Telerik Data Access supports versions of PostgreSQL from 9.1 on. Here
, you can find the list with the database engines support by Telerik Data Access.
I hope this helps. If you have additional questions, do not hesitate to get back to us.
OpenAccess ORM is now Telerik Data Access
. For more information on the new names, please, check out the Telerik Product Map