rorovic opened a new issue #4248: 'PyDruid' object has no attribute 'scan' URL: https://github.com/apache/incubator-superset/issues/4248 Make sure these boxes are checked before submitting your issue - thank you! - [ ] I have checked the superset logs for python stacktraces and included it here as text if any - [ ] I have reproduced the issue with at least the latest released version of superset - [ ] I have checked the issue tracker for the same issue and I haven't found one similar When i use Histogram with Druid datasource , i encounter this exception: 'PyDruid' object has no attribute 'scan' ### Superset version 0.22.1 ### Expected results 46 2018-01-19 17:17:27,633:ERROR:root:'PyDruid' object has no attribute 'scan' 47 Traceback (most recent call last): 48 File "/home/dujinyuan02/superset/superset/viz.py", line 267, in get_payload 49 df = self.get_df() 50 File "/home/dujinyuan02/superset/superset/viz.py", line 102, in get_df 51 self.results = self.datasource.query(query_obj) 52 File "/home/dujinyuan02/superset/superset/connectors/druid/models.py", line 1212, in query 53 client=client, query_obj=query_obj, phase=2) 54 File "/home/dujinyuan02/superset/superset/connectors/druid/models.py", line 943, in get_query_str 55 return self.run_query(client=client, phase=phase, **query_obj) 56 File "/home/dujinyuan02/superset/superset/connectors/druid/models.py", line 1092, in run_query 57 client.scan(**qry) 58 AttributeError: 'PyDruid' object has no attribute 'scan' ### Actual results  ### Steps to reproduce
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