[Feature Request] Support negation for search

[smyrick]

Often when I am doing a search and I have narrowed down to my serviceName I would like to see trends and traces for everything except one specific operationName. Is there anyway that search can support this feature?

serviceName=my-service operationName!=slowCall

[absrivastava]

Currently, it's not available, but we are already working on adding this feature. We are ready with Backend changes and @bulicekj is working on UI to support this.

[bulicekj]

@absrivastava @smyrick UI work is done (see #497). This is currently parked until we can figure out a better backend solution. Tagging @ashishagg as well, in case he has put any more thought into it