I want to display all entries of an elasticsearch database with kibana, that contain the special character @. To be more specific, I search for that in the field friendly_name.
I have tried the following:
*@
*\@
*"\@"*
friendly_name:*@
friendly_name:*\@
friendly_name:*"\@"*
Neither one of those worked, I also found pages like: https://lucene.apache.org/core/2_9_4/queryparsersyntax.html#Escaping%20Special%20Characters
which tell to escape special characters with '\', which does not work here, apparently.