PostgreSQL driver inserts extra backslashes on PostgreSQL 9.1 and newer

PostgreSQL driver relies on backslash escaping, inserting backslashes where necessary. Starting with version 9.1, PostgreSQL does NOT threat backslashes as escape characters by default (as mentioned here in a red box), so backslashes are doubled on insertion, but are kept on selection (as expected), so strings with backslashes fail to round-trip through the database.