Say I need to find 95th and 99th latency of an API with endpoint: "/api/v1/merchant/{merchantId}/logo".
In Kibana I tried searching: "/api/v1/merchant" AND "/logo". But, it returned multiple results, one for each merchantId.

How to search such that single URL is returned which combines the metrics for all merchantIds to give the output?
What you are trying to do is to filter for
"api v1 merchant * logo"(mixing wildcards and string query to preserve the order) which is not possible at the moment. But if the filter"api v1 merchant" and logois correct (aka you don't have APIs like/api/v1/merchant/logowithout the id) then there is a solution.You need a new visualization: just filter for the query and not aggregate the results by
API.keyword.