https://www.elastic.co/search-labs/blog/esql-geospatial-distance-search
Geospatial distance search with Elasticsearch ES|QL - Elasticsearch Labs
Jan 8, 2026 - Explore geospatial distance search in Elasticsearch Query Language (ES|QL), one of the most desired and useful features for improved ease of use and Open...
distance searchgeospatialelasticsearchesql
https://solr.apache.org/docs/4_6_1/solr-core/org/apache/solr/search/function/distance/package-summary.html
org.apache.solr.search.function.distance (Solr 4.6.1 API)
apache solrsearch functiondistanceapi