No default value is set on these datatypes, but defaultValueComputed is being set.
<column defaultValueComputed="0000-00-00 00:00:00" name="TIMESTAMP_NOTNULL" type="TIMESTAMP">
Linux and MySQL
Year and timestamp don't use defaultValueComputed anymore, but I left binary and varbinary because the value often shouldn't be quoted like defaultValue will sometimes do. "Computed" isn't quite right, but there aren't better options