ST_AsHexWKB — Return the Well-Known Binary (WKB) in Hex representation of the raster.
bytea ST_AsHexWKB(
raster rast, boolean outasin=FALSE)
;
Returns the Binary representation in Hex representation of the raster. If outasin
is TRUE, out-db bands are treated as in-db.
Refer to raster/doc/RFC2-WellKnownBinaryFormat located in the PostGIS source folder for details of the representation.
By default, Hex WKB output contains the external file path for out-db bands. If the client does not have access to the raster file underlying an out-db band, set |
Availability: 2.5.0
SELECT ST_AsHexWKB(rast) As rastbin FROM dummy_rast WHERE rid=1; st_ashexwkb ---------------------------------------------------------------------------------------------------------------------------- 010000000000000000000000400000000000000840000000000000E03F000000000000E03F000000000000000000000000000000000A0000000A001400