@Benoit: Your changes to H2Dialect.getCreateSequenceString(String) are causing my tests to fail with a HsqlException: unexpected token: START. It seems that Dialect.getCreateSequenceString(String, int, int) expects Dialect.getCreateSequenceString(String) to return the statement without "start with" though not stated clearly in the docs. In the end the "start with" clause gets appended twice resulting in a statement like "create sequence my_seq start with 1 start with 1 increment by 1".