Search a specific user in history (using jql)

[Roger]

I would like to search all issues/tickets, which my name is in the history (beside filter the status, dueDate,  etc.)  - only using JQL. Somthing like this

issuetype = RfC and status = open and historyInExist(myUsername)

[Shannon Wright]

Take a look at the Jira Toolkit plugin.  It has a Participant field you can add that would give you the ability to query like you are asking.

https://marketplace.atlassian.com/apps/5142/toolkit-plugin-for-jira?hosting=server&tab=support