serenajiang opened a new issue #18222:
URL: https://github.com/apache/superset/issues/18222
If the metric for a big number chart has the type DECIMAL, the chart
displays an error: `No data after filtering or data is NULL for the latest time
record`
From inspecting the request result for `/api/v1/chart/data`, it seems like
this occurs because the decimal is analyzed as a string.
#### How to reproduce the bug
1. Run query in sqllab: `SELECT CAST(1 AS DECIMAL) AS x, DATE('2022-01-27')
AS ds`
2. Explore chart
3. Select big number chart, use `SUM(x)` as metric
4. Run.
### Expected results
Chart shows big number with value `1`. Data returned from
`/api/v1/chart/data` is `[{SUM(x): 1}]`
### Actual results
Error is shown. Data returned from `/api/v1/chart/data` is `[{SUM(x): "1"}]`
#### Screenshots
### Environment
Up to date with apache/master as of 2022-01-26
### Checklist
Make sure to follow these steps before submitting your issue - thank you!
- [X] I have checked the superset logs for python stacktraces and included
it here as text if there are any.
- [X] I have reproduced the issue with at least the latest released version
of superset.
- [X] I have checked the issue tracker for the same issue and I haven't
found one similar.
### Additional context
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