KQL: nested field filter kibana

Create index pattern via API curl -X POST http://kibana:5601/api/saved_objects/index-pattern -H 'kbn-xsrf: true' -H 'Content-Type: application/json' -d '{"attributes":{"title":"logs-*","timeFieldName":"@timestamp"}}' Export saved objects curl -X POST http://kibana:5601/api/saved_objects/_export -H 'kbn-xsrf: true' -H 'Content-Type: application/json' -d '{"type":["dashboard","visualization"],"includeReferencesDeep":true}' -o export.ndjson Import saved objects curl -X POST http://kibana:5601/api/saved_objects/_import?overwrite=true -H 'kbn-xsrf: true' -F file=@export.ndjson Check Kibana health curl -s http://kibana:5601/api/status | jq '{status: .status.overall.level, version: .version.number}' List all index patterns curl -s http://kibana:5601/api/saved_objects/_find?type=index-pattern | jq '.saved_objects[].attributes.title'