elasticsearch/docs/reference/query-languages/esql/_snippets/functions/st_xmax.md

ST_XMAX [esql-st_xmax]

Syntax

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Parameters

point : Expression of type geo_point, geo_shape, cartesian_point or cartesian_shape. If null, the function returns null.

Description

Extracts the maximum value of the x coordinates from the supplied geometry. If the geometry is of type geo_point or geo_shape this is equivalent to extracting the maximum longitude value.

Supported types

point	result
cartesian_point	double
cartesian_shape	double
geo_point	double
geo_shape	double

Example

FROM airport_city_boundaries
| WHERE abbrev == "CPH"
| EVAL envelope = ST_ENVELOPE(city_boundary)
| EVAL xmin = ST_XMIN(envelope), xmax = ST_XMAX(envelope), ymin = ST_YMIN(envelope), ymax = ST_YMAX(envelope)
| KEEP abbrev, airport, xmin, xmax, ymin, ymax

abbrev:keyword	airport:text	xmin:double	xmax:double	ymin:double	ymax:double
CPH	Copenhagen	12.453	12.6398	55.6318	55.7327