795 B
795 B
ST_X
[esql-st_x]
Syntax
:::{image} ../../../../../images/st_x.svg :alt: Embedded :class: text-center :::
Parameters
point
- Expression of type
geo_point
orcartesian_point
. Ifnull
, the function returnsnull
.
Description
Extracts the x
coordinate from the supplied point. If the points is of type geo_point
this is equivalent to extracting the longitude
value.
Supported types
point | result |
---|---|
cartesian_point | double |
geo_point | double |
Example
ROW point = TO_GEOPOINT("POINT(42.97109629958868 14.7552534006536)")
| EVAL x = ST_X(point), y = ST_Y(point)
point:geo_point | x:double | y:double |
---|---|---|
POINT(42.97109629958868 14.7552534006536) | 42.97109629958868 | 14.7552534006536 |