SequenceGeneratorDefaultSchemaTest fails for MySQL

[DavideD]

Error:

io.vertx.mysqlclient.MySQLException: SELECT command denied to user 'hreact'@'10.0.2.100' for table 'test_id_seq'

This test set a different default schema using the property hibernate.default_schema.
I suspect that there is a mismatch between the creation of the sequence and when the sequence is used. Probably, somewhere the schema is not specified (I could be wrong though, I haven't look at this in-depth).

Assigning this to @Sanne because he said he would look into it.
I've disabled the test for now: fb135a3