fix test_loader

Author: wwwjfy

mysql_tests/models.py

@@ -79,7 +79,7 @@ class Team(db.Model):
 
     id = db.Column(db.BigInteger(), primary_key=True)
     name = db.Column(db.Unicode(255), default=_random_name)
-    parent_id = db.Column(db.ForeignKey("gino_teams.id"))
+    parent_id = db.Column(db.ForeignKey("gino_teams.id", ondelete='CASCADE'))
     company_id = db.Column(db.ForeignKey("gino_companies.id"))
 
     def __init__(self, **kw):

mysql_tests/test_loader.py

@@ -281,7 +281,7 @@ async def test_literal(user):
     sample = tuple(random.random() for _ in range(5))
     now = db.Column("time", db.DateTime())
     row = await db.first(
-        db.text("SELECT now() AT TIME ZONE 'UTC'")
+        db.text("SELECT UTC_TIMESTAMP")
         .columns(now)
         .gino.load(sample + (lambda r, c: datetime.utcnow(), now))
         .query