% This is generated by ESQL's AbstractFunctionTestCase. Do not edit it. See ../README.md for how to regenerate it.

**Description**

Calculates the `geohex`, the H3 cell-id, of the supplied geo_point at the specified precision. The result is long encoded. Use [ST_GEOHEX_TO_STRING](#esql-st_geohex_to_string) to convert the result to a string.  These functions are related to the [`geo_grid` query](/reference/query-languages/query-dsl/query-dsl-geo-grid-query.md) and the [`geohex_grid` aggregation](/reference/aggregations/search-aggregations-bucket-geohexgrid-aggregation.md).