ST_GEOGFROMWKB

Constructs a GEOGRAPHY object from a Well-Known Binary (WKB) byte string. The extended WKB format is supported only for Spatial Reference Identifier (SRID) 4326, which corresponds to the WGS84 coordinate system. Normalization and invalid input handling are applied as described in the GEOGRAPHY type documentation.

Syntax

ST_GEOGFROMWKB(<WKB>)

Parameter	Description	Supported input types
`<WKB>`	WKB representation of the `GEOGRAPHY` object.	`BYTEA`

ST_GEOGFROMWKB returns a value of type GEOGRAPHY.

The following code example constructs a Point in the GEOGRAPHY data type from a WKB byte string and converts it to WKT format:

SELECT ST_ASTEXT(ST_GEOGFROMWKB('\x01010000003d94479a127f52c0502f80fb03614440'::BYTEA)) AS result;

result text
POINT(-73.98551041593687 40.75793403395676)

Rows: 1Execution time: 5.27ms

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