rudak opened a new issue, #36946:
URL: https://github.com/apache/superset/issues/36946
### Bug description
When editing a dataset and configuring a column to display a currency
suffix, I encounter a validation error when saving the dataset.
Steps:
Go to a dataset -> Edit -> Edit a Metrics column
Set the Metric currency with:
symbol position: suffix
symbol: EUR
Save the dataset
At this point, saving fails with the following error:
Error saving dataset
The schema of the submitted payload is invalid.
Length must be between 1 and 128.:
`{"0":"{","1":"'","2":"s","3":"y","4":"m","5":"b","6":"o","7":"l","8":"'","9":":","10":"
","11":"'","12":"E","13":"U","14":"R","15":"'","16":",","17":"
","18":"'","19":"s","20":"y","21":"m","22":"b","23":"o","24":"l","25":"P","26":"o","27":"s","28":"i","29":"t","30":"i","31":"o","32":"n","33":"'","34":":","35":"
","36":"'","37":"s","38":"u","39":"f","40":"f","41":"i","42":"x","43":"'","44":"}","symbolPosition":"suffix","symbol":"EUR"}`
<img width="897" height="670" alt="Image"
src="https://github.com/user-attachments/assets/ebbffc81-d967-47f7-bcb2-8631ef885fe4";
/>
It looks like the UI submits a JSON object for the currency configuration,
but the backend schema expects a string with a maximum length of 128
characters. The payload appears to be interpreted character by character
instead of as a valid string.
Version
Superset 5.0.0
### Screenshots/recordings
``
### Superset version
5.0.0
### Python version
3.11
### Node version
I don't know
### Browser
Firefox
### Additional context
_No response_
### Checklist
- [ ] I have searched Superset docs and Slack and didn't find a solution to
my problem.
- [ ] I have searched the GitHub issue tracker and didn't find a similar bug
report.
- [ ] 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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