[GitHub] [superset] GGPay opened a new issue #14041: Import datasets with dict in metrics: extra

[GitBox <gi...@apache.org>]

GGPay opened a new issue #14041:
URL: https://github.com/apache/superset/issues/14041


   If datasets has a dict in yaml file - metrics: extra  - that cause the unknown error when import datasets using UI.
   
   ![image](https://user-images.githubusercontent.com/17413180/114126680-89521c00-98be-11eb-93f6-fe3339e851c9.png)
   
   ### Actual results
   
   Failed import datasets
   
   #### Screenshots
   
   ![image](https://user-images.githubusercontent.com/17413180/114126842-cae2c700-98be-11eb-80d4-043487637ff8.png)
   
   Server log
   
   ![image](https://user-images.githubusercontent.com/17413180/114127058-447ab500-98bf-11eb-86fa-1a4a9d48d698.png)
   
   ![image](https://user-images.githubusercontent.com/17413180/114127924-dafba600-98c0-11eb-8ed1-022c07c675e5.png)
   
   
   #### How to reproduce the bug
   
   1. Edit any Virtual datasets
   2. Click on Metrics tab
   3. Click on "Add Item" - create any new item - or even add item and click delete - it also create dict in extra field.
   4. Save datasets
   5. Click on Action - Export
   6. Click Import  - choose zip file previously exported
   7. enter "OVERWRITE"
   8. See error
   
   ### Environment
   - superset version: `superset version 1.0.1`
   - docker-compose-non-dev.yml
   
   ### Additional context
   
   If change dict to null in yaml file - import works as expected.
   


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