convert to 2.0, that was easier than I thought..

ui/medashare/alembic/versions/f2131e9ae4db_add_type_to_mdbase_table.py

@@ -27,7 +27,7 @@ def upgrade() -> None:
     mdo = sa.schema.MetaData()
     mdotbl = sa.Table('metadata_objects', mdo, autoload_with=connection.engine)
 
-    stmt = sa.select([mdotbl.c.uuid, mdotbl.c.data])
+    stmt = sa.select(mdotbl.c.uuid, mdotbl.c.data)
     newtypes = [ dict(olduuid=uuid, newtype=mdb.MDBase.decode(data).type) for
         uuid, data in connection.execute(stmt) ]