ST_AsHEXEWKB
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Name

ST_AsHEXEWKB — Retorna uma geometria no formato HEXEWKB (como texto) usando little-endian (NDR) ou big-endian (XDR) encoding.

Synopsis

text ST_AsHEXEWKB(geometry g1, text NDRorXDR);

text ST_AsHEXEWKB(geometry g1);

Descrição

Retorna uma geometria no formato HEXEWKB (como texto) usando little-endian (NDR) ou big-endian (XDR) encoding. Se nenhum encoding estiver especificado, então o NDR é usado.

[Note]

Disponibilidade: 1.2.2

This function supports 3d and will not drop the z-index.

This method supports Circular Strings and Curves.

Exemplos

SELECT ST_AsHEXEWKB(ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 0))',4326));
    which gives same answer as

    SELECT ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 0))',4326)::text;

    st_ashexewkb
    --------
    0103000020E6100000010000000500
    00000000000000000000000000000000
    00000000000000000000000000000000F03F
    000000000000F03F000000000000F03F000000000000F03
    F000000000000000000000000000000000000000000000000