jessicachen888 commented on issue #3694: Foreign table cannot be loaded in SQL lab Tab URL: https://github.com/apache/incubator-superset/issues/3694#issuecomment-337852058 I copy the SQL query from the Slice Tab and paste it into the SQL lab to get the following server log:  `2017-10-19 17:19:54,321:INFO:root:Database.get_sqla_engine(). Masked URL: postgresql://Jessica:XXXXXXXXXX@localhost/Jessica 2017-10-19 17:19:54,341:INFO:root:Database.get_sqla_engine(). Masked URL: postgresql://Jessica:XXXXXXXXXX@localhost/Jessica 2017-10-19 17:19:54,480:INFO:werkzeug:127.0.0.1 - - [19/Oct/2017 17:19:54] "GET /databaseasync/api/read?_flt_0_expose_in_sqllab=1&_oc_DatabaseAsync=database_name&_od_DatabaseAsync=asc HTTP/1.1" 200 - 2017-10-19 17:19:54,591:INFO:werkzeug:127.0.0.1 - - [19/Oct/2017 17:19:54] "GET /superset/schemas/2/ HTTP/1.1" 200 - 2017-10-19 17:19:54,595:INFO:root:Database.get_sqla_engine(). Masked URL: postgresql://Jessica:XXXXXXXXXX@localhost/Jessica 2017-10-19 17:19:54,677:INFO:werkzeug:127.0.0.1 - - [19/Oct/2017 17:19:54] "GET /superset/tables/2/public/undefined/ HTTP/1.1" 200 - 2017-10-19 17:19:54,708:INFO:root:[stats_logger] (incr) sql_json 2017-10-19 17:19:54,712:INFO:root:Parsing with sqlparse statement SELECT "Station" AS "Station", COUNT(*) AS count FROM public.event_warnings WHERE "Start_Time" >= '2016-01-01 00:00:00' AND "Start_Time" <= '2017-10-19 15:02:07' GROUP BY "Station" ORDER BY count DESC LIMIT 50000 2017-10-19 17:19:54,782:INFO:werkzeug:127.0.0.1 - - [19/Oct/2017 17:19:54] "GET /static/appbuilder/fonts/fontawesome-webfont.woff?v=4.7.0 HTTP/1.1" 304 - 2017-10-19 17:19:54,870:INFO:root:Triggering query_id: 32 2017-10-19 17:19:54,870:INFO:root:Running query on a Celery worker 2017-10-19 17:19:55,565:ERROR:root:[Errno 61] Connection refused Traceback (most recent call last): File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/utils/__init__.py", line 423, in __call__ return self.__value__ AttributeError: 'ChannelPromise' object has no attribute '__value__' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/connection.py", line 449, in _ensured return fun(*args, **kwargs) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/messaging.py", line 177, in _publish channel = self.channel File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/messaging.py", line 194, in _get_channel channel = self._channel = channel() File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/utils/__init__.py", line 425, in __call__ value = self.__value__ = self.__contract__() File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/messaging.py", line 209, in <lambda> channel = ChannelPromise(lambda: connection.default_channel) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/connection.py", line 771, in default_channel self.connection File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/connection.py", line 756, in connection self._connection = self._establish_connection() File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/connection.py", line 711, in _establish_connection conn = self.transport.establish_connection() File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/transport/pyamqp.py", line 116, in establish_connection conn = self.Connection(**opts) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/amqp/connection.py", line 165, in __init__ self.transport = self.Transport(host, connect_timeout, ssl) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/amqp/connection.py", line 186, in Transport return create_transport(host, connect_timeout, ssl) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/amqp/transport.py", line 299, in create_transport return TCPTransport(host, connect_timeout) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/amqp/transport.py", line 95, in __init__ raise socket.error(last_err) OSError: [Errno 61] Connection refused During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/Users/Jessica/Desktop/work/incubator-superset-master/superset/views/core.py", line 2106, in sql_json store_results=not query.select_as_cta, user_name=g.user.username) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/celery/app/task.py", line 461, in delay return self.apply_async(args, kwargs) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/celery/app/task.py", line 573, in apply_async **dict(self._get_exec_options(), **options) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/celery/app/base.py", line 354, in send_task reply_to=reply_to or self.oid, **options File "/Users/Jessica/anaconda/lib/python3.4/site-packages/celery/app/amqp.py", line 310, in publish_task **kwargs File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/messaging.py", line 172, in publish routing_key, mandatory, immediate, exchange, declare) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/connection.py", line 470, in _ensured interval_max) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/connection.py", line 382, in ensure_connection interval_start, interval_step, interval_max, callback) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/utils/__init__.py", line 246, in retry_over_time return fun(*args, **kwargs) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/connection.py", line 250, in connect return self.connection File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/connection.py", line 756, in connection self._connection = self._establish_connection() File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/connection.py", line 711, in _establish_connection conn = self.transport.establish_connection() File "/Users/Jessica/anaconda/lib/python3.4/site-packages/kombu/transport/pyamqp.py", line 116, in establish_connection conn = self.Connection(**opts) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/amqp/connection.py", line 165, in __init__ self.transport = self.Transport(host, connect_timeout, ssl) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/amqp/connection.py", line 186, in Transport return create_transport(host, connect_timeout, ssl) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/amqp/transport.py", line 299, in create_transport return TCPTransport(host, connect_timeout) File "/Users/Jessica/anaconda/lib/python3.4/site-packages/amqp/transport.py", line 95, in __init__ raise socket.error(last_err) OSError: [Errno 61] Connection refused `
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