cezudas opened a new issue, #30977:
URL: https://github.com/apache/superset/issues/30977
### Bug description
I set up a bar chart `X axis` value to a column named 'Created on'.
When the chart data loads I get an error: "Custom SQL fields cannot contain
sub-queries."
Sample chart SQL query: `SELECT DATE_TRUNC('day', "Created on") AS "Created
on", sum("Estimated savings / Month") AS "SUM(Estimated savings / Month)"
FROM public."Opportunities_4_userfriendly"
WHERE ("Status" NOT IN ('Dismissed', 'Completed')) GROUP BY
DATE_TRUNC('day', "Created on")
LIMIT 50000;`
In my case, choosing any other column containing the token 'on' for the `X
axis`, such as "Update on" will lead to the same error.
My guess is the bug originates from
`superset/models/helpers.py#validate_adhoc_subquery`. The parser is likely
incorrectly interpreting "Created on" as a table reference because of the word
"on"
### Screenshots/recordings
### Superset version
master / latest-dev
### Python version
3.9
### Node version
16
### Browser
Chrome
### Additional context
_No response_
### Checklist
- [X] I have searched Superset docs and Slack and didn't find a solution to
my problem.
- [X] I have searched the GitHub issue tracker and didn't find a similar bug
report.
- [X] I have checked Superset's logs for errors and if I found a relevant
Python stacktrace, I included it here as text in the "additional context"
section.
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