import type { FunctionDefinition } from '../../definition_types';
/**
 * Extracts the `x` coordinate from the supplied point.
 * If the point is of type `geo_point` this is equivalent to extracting the `longitude` value.
 *
 * @example
 * ROW point = TO_GEOPOINT("POINT(42.97109629958868 14.7552534006536)")
 * | EVAL x =  ST_X(point), y = ST_Y(point)
 */
declare const definition: FunctionDefinition;
export default definition;
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