ST_LatNorth method

geometry-expression.ST_LatNorth()

DOUBLE Returns the northernmost latitude of the geometry-expression.

Returns the northernmost latitude value of the geometry-expression. Note that in the round-Earth model, the northernmost latitude may not correspond to the latitude of any of the points defining the geometry.

Note

If the geometry-expression is an empty geometry (ST_IsEmpty()=1), then this method returns NULL.

Note

By default, ST_LatNorth uses the original format for a geometry, if it is available. Otherwise, the internal format is used. For more information about internal and original formats, see STORAGE FORMAT clause, CREATE SPATIAL REFERENCE SYSTEM statement.

SQL/MM (ISO/IEC 13249-3: 2006) Vendor extension

The following example returns the result 49.74.

SELECT ROUND( NEW ST_LineString( 'LineString( -122 49, -96 49 )', 4326 )
                .ST_LatNorth(), 2 )