SQL查询时判断库权限时支持* (#2764)

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Co-authored-by: 王飞 <fei.wang@xgo.one>

sql/query_privileges.py

@@ -493,7 +493,7 @@ def _db_priv(user, instance, db_name):
     user_privileges = QueryPrivileges.objects.filter(
         user_name=user.username,
         instance=instance,
-        db_name=str(db_name),
+        db_name__in=[str(db_name), str("*")],
         valid_date__gte=datetime.datetime.now(),
         is_deleted=0,
         priv_type=1,