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Constructs a Geography object from a WKT (Well-Known Text) string. If SRID is not set, it defaults to 0 (unknown). This is the geography equivalent of ST_GeomFromText.

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Signatures

ST_GeogFromText(wkt: String)

ST_GeogFromText(wkt: String, srid: Integer)

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Parameters

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wkt
String
required
A Well-Known Text (WKT) representation of a geometry.
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srid
Integer
Spatial Reference Identifier. Defaults to 0 if not specified.

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Return type

The constructed geography object.

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Examples

SELECT ST_GeogFromText('POINT (-122.4194 37.7749)')

POINT (-122.4194 37.7749)

SELECT ST_AsEWKT(ST_GeogFromText('LINESTRING (1 2, 3 4, 5 6)', 4326))

SRID=4326; LINESTRING (1 2, 3 4, 5 6)