Adapter can't recognize database schema with capital letters

The name of the database schema in ColumnStore written with Capital letters is turning in small letters. The same behavior is observed for names of the tables and columns.

Currently adapter UI works fine with table names written with Capital letters and recognize the table in the ColumnStore.
But schema names written with Capital letters are not recognized, because they appear with small letters in database.

See attached screenshot with error displayed when user tries to map fields in adapter.