[data views] Field conflicts sometimes cause very large payloads for field_caps and fields_for_wildcards_requests

[mattkime]

When a data view hits a large number of indices, the field conflict data can be very large due to list of which index corresponds to which field type. This is potentially costly wherever there's network communication, from the browser receiving the file to inter node communication between ES servers to create the response.

In most cases, we're not interested in this information and its not displayed. fields_for_wildcard should accept a param that tosses the index lists. Ideally this could be passed through to field_caps as well.

default (1).json.zip

[elasticmachine]

Pinging @elastic/kibana-data-discovery (Team:DataDiscovery)

[kertal]

Closing this because it's not planned to be resolved in the foreseeable future. It will be tracked in our Icebox and will be re-opened if our priorities change. Feel free to re-open if you think it should be melted sooner.