This topic describes the ST_AsHEXEWKB function. This function returns the HEXEWKB string that represents a geometry object.

Syntax

text  ST_AsHEXEWKB(geometry  g1 , text  NDRorXDR);
text  ST_AsHEXEWKB(geometry  g1);

Parameters

ParameterDescription
Parameter Description
g1 The geometry object whose HEXEWKB representation you want to obtain.
NDRorXDR The byte order that you want to use. Valid values:
  • XDR: big endian.
  • NDR: little endian. This is the default value.

Description

  • This function supports circular strings and curves.
  • This function supports 3D objects and does not discard the z-index of the geometry object that is constructed.

Examples

SELECT ST_AsHEXEWKB(ST_GeomFromText('POLYGON((1 1,1 2,2 2,2 1,1 1))',4326));
                         st_ashexewkb
---------------------------------------------------------------
 0103000020E61000000100000005000000000000000000F03F00000000000.
.0F03F000000000000F03F0000000000000040000000000000004000000000.
.000000400000000000000040000000000000F03F000000000000F03F00000.
.0000000F03F
(1 row)