SQLite Full-Text Search stable are not associated to Python object and can't be detected
by Alembic. To avoid the generation of unwanted drop commands, they are now ignored when
autogenerating migration scripts.
rel 364
Alembic database migration tool, which is the recommended one for SQLAlchemy has been
integrated. When a database is created, it will be used to stamp to current (head)
revision, otherwise, DB will be checked to see if it needs to be updated, and upgrade will
be triggered if necessary.