Can't you specify the column names as properties in Obj-Browse? This functionality works for MSQL, Oracle, DB2, etc.... How is the install and configure done. Is there anything like what DB2 has with the property "useJDBC4ColumnNameAndLabelSemantics "?
Note: As an alternative, if your application needs to perform a simple operations against an external database, it is best practice to use the External Database Table Mapping wizard or the Connector and Metadata Accelerator or the to configure access to the rows as an external class. When such external access is configured for an external table, you can use the Obj-Open, Obj-Browse, and other Obj- methods to interact with that table through a class that represents it; you do not need to create SQL connector rules. However, you can still use the Browse tab (in conjunction with an activity that includes the RDB-List method) to create a rule that, at runtime, searches an external relational database and returns to the Pega 7 Platform data from the selected rows. See About generating connector rules and Data Model category — Database Class Mappings page.