Creating issues from csv - but not duplicate

[Kristian Lind]

I know of the functionality of creating issues from a csv file. 
In this case I get a report once a week that contains security vulnerabilities that we need to fix. 
These reports are generated by a scanning tool and will show up until they are fixed.

Is there a way can prevent the duplication of issues when importing the report every week. 

e.g. is there a way I can specify a few fields that make up a key, and if that key is already there no issue is created.

Thanks

[Josh Costella]

Hi @Kristian Lind 

From Atlassian's own documentation... 

[Kristian Lind]

Not really what I am looking for. 

What I am looking to do is e.g. if the csv file has 5 columns, A,B,C,D,E and I can make the combination of 3 of those A,B,D a combined key. (not to be confused with the jira field "issue key") 
If an issue already exist with the value in field A,B,D then do not create a new issue.