Markup raise Exception(_('Empty query?'))

[zhizunbao514]

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

Superset version

Expected results

When I have updated the latest version,Visualization Type is Markup,raise Exception.Can help to solve it, thank you very much!

Actual results

Traceback (most recent call last):
File "/home/superset/incubator-superset-master/superset/views/core.py", line 1053, in generate_json
force=force)
File "/home/superset/incubator-superset-master/superset/viz.py", line 246, in get_payload
cache_key = self.cache_key(query_obj)
File "/home/superset/incubator-superset-master/superset/viz.py", line 239, in cache_key
self.datasource.get_query_str(query_obj),
File "/home/superset/incubator-superset-master/superset/connectors/sqla/models.py", line 404, in get_query_str
qry = self.get_sqla_query(**query_obj)
File "/home/superset/incubator-superset-master/superset/connectors/sqla/models.py", line 483, in get_sqla_query
raise Exception(_('Empty query?'))

Steps to reproduce

[zhaoyongjie]

Other visualization types can work?

[zhizunbao514]

@zhaoyongjie Other normal, what should I do, help me！thank you！

[zhaoyongjie]

I can not reproduce your issue. Please send more steps for reproduce.

[zhizunbao514]

@zhaoyongjie When I was in use markup chart, he reported to the error