We try to use the approach of Code First (Entity Framework 6.2) with the DBMS Firebird 3.0. For a small model (up to 10 tables) migrations are generated and executed.
The problem arises when there is a large model (in our case 153 tables) - in this case we are faced with a "limit on the maximum length of a BINARY type" (because full EF-model (Code first) is written in the field 'Model'):
Dynamic SQL Error Dynamic SQL Error SQL error code = -104
String literal with 66866 characters exceeds the maximum length of 65535 characters for the BINARY character set
Related issue: http://tracker.firebirdsql.org/browse/CORE-5821