The new version of PostgresDAC 2.1.1 has been released. It fixes several issues.
What's new in version 2.1.1:
[+] Varchar type without length specifier is treated as TMemoField now [+] No quoted schema usage ability added, e.g. schema_name.table_name [+] Internal search routine improved (boolean and date fields) [+] Range routines improved. [-] "Can't connect to pg_shadow table" fixed. Now pg_users system view is used [-] Minor bugs were fixed