goto-loop opened a new issue, #21341:
URL: https://github.com/apache/superset/issues/21341

   When using the Table chart, it is possible to define conditional color 
formatting. Currently, the formatting is applied also to N/A values if a 
left-open interval with positive target value is used.
   
   #### How to reproduce the bug
   
   1. Create a new Table chart from the new_members_daily example dataset
   2. Set chart to RAW RECORDS and under COLUMNS add new_members, then hit 
CREATE CHART
   3. Under CUSTOMIZE tab, CONDITIONAL FORMATTING, add new formatter with 
arbitrary color for values < 1
   4. Click APPLY and see the first row with N/A value be marked as red
   
   ### Expected results
   
   N/A values should be excluded from conditional formatting, i.e. they should 
have no color because their value is undefined.
   
   ### Actual results
   
   N/A values get color formatted.
   
   #### Screenshots
   
   
![Screenshot_20220906_121559](https://user-images.githubusercontent.com/102797966/188610166-3fe0dbe2-9d63-4222-b29f-da3616214990.png)
   
   ### Environment
   
   - browser type and version: Firefox 104.0.1
   - superset version: 2.0.0
   
   ### Checklist
   
   Make sure to follow these steps before submitting your issue - thank you!
   
   - [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
   
   A possible workaround is to split up the left-open interval, e.g. instead of 
one conditional formatter for x < 1 you use three formatters with the ranges 0 
< x < 1, x = 0 and x < 0. It seems that N/A gets treated as zero value, but it 
does not satisfy a comparison with the actual number 0.
   


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