mik-laj commented on issue #9855:
URL: https://github.com/apache/airflow/issues/9855#issuecomment-662062832


   I thought about the extra option for a longer time and I don't think this 
will cover all cases.
   
   I thiink, we need `merge-dispossition` It should specifies the action that 
occurs if the variables/connection already exists. 
   We should support the following values are supported:
   `OVERWRITE`: If the table variable/connection exists, we should overwrites 
the data.
   `IGNORE`: If the table variable/connection exists, we should skip this 
connection/variable.
   `RESTRICT`: If the variable/connection already exists, an exception is 
raised.
   
   The default value should be RESTRICT. Each command invocation should be 
atomic and only occurs if all changes is able to complete successfully (one 
transaction).
   
   


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