ST_XMin - Amazon Redshift
SyntaxArgumentsReturn typeExamples
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ST_XMin

ST_XMin returns the minimum first coordinate of an input geometry.

Syntax

ST_XMin(geom)

Arguments

geom

A value of data type GEOMETRY or an expression that evaluates to a GEOMETRY type.

Return type

DOUBLE PRECISION value of the minimum first coordinate.

If geom is empty, then null is returned.

If geom is null, then null is returned.

Examples

The following SQL returns the smallest first coordinate of a linestring. 

SELECT ST_XMin(ST_GeomFromText('LINESTRING(77.29 29.07,77.42 29.26,77.27 29.31,77.29 29.07)'));

st_xmin
-----------
 77.27