[charts] Box Plot query generated wrongly breaking charts

[zuzana-vej]

After the new explore redesign, the query generated for Box Plot chart is wrong, cause the chart to error out. The GROUP BY statement in missing in the query. The query should group by SERIES and by DISTRIBUTE ACROSS fields.

Expected results

Query gets composed correctly so that chart works

Actual results

Query is composed wrongly, chart errors out

Screenshots

Error:
Error: {'message': 'line 1:8: \'"entity_type"\' must be an aggregate expression or appear in GROUP BY clause', 'errorCode': 73, 'errorName': 'EXPRESSION_NOT_AGGREGATE',

Generated query resulting in error:

Same query with added GROUP BY working in SQL Lab:

How to reproduce the bug

1. Go to Explore, create chart for Box Plot
2. Select field in "SERIES" and "DISTRIBUTE ACROSS"
3. Run chart and see error - group by wasn't added into the query statement

Environment

master

Checklist

Make sure to follow these steps before submitting your issue - thank you!

• I have checked the superset logs for python stacktraces and included it here as text if there are 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.

Additional context

There is no workaround. Any Box plot chart which had the SERIES or DISTRIBUTE ACROSS specified is broken.