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ST_GeomFromWKB

Validates Well-Known Binary (WKB) data and returns it as a geometry.

Syntax​

ST_GeomFromWKB(wkb)

Parameters​

ParameterTypeDescription
wkbBinaryWell-Known Binary representation of a geometry

Returns​

TypeDescription
Binary (WKB)Validated geometry as WKB with geoarrow.wkb metadata

Examples​

Validate WKB Data​

SELECT ST_GeomFromWKB(wkb_column) as geom FROM spatial_data;

Use with Chained Operations​

SELECT ST_Area(ST_GeomFromWKB(wkb_data)) as area FROM parcels;

Filter Invalid Geometries​

SELECT * FROM raw_data
WHERE ST_GeomFromWKB(wkb_column) IS NOT NULL;

Notes​

  • Validates that the binary data is valid WKB format
  • Adds geoarrow.wkb metadata to the output
  • Invalid WKB will result in an error
  • Useful when importing data from external sources that may contain malformed geometries

See Also​