📣
TiDB Cloud Premium is now in public preview. Unlimited growth, instant elasticity, advanced security for enterprise workloads. Try it out →

ST_ASWKB



Converts a GEOMETRY or GEOGRAPHY object into a WKB(well-known-binary) format representation.

Syntax

ST_ASWKB(<geometry_or_geography>)

Aliases

Arguments

ArgumentsDescription
<geometry_or_geography>The argument must be an expression of type GEOMETRY or GEOGRAPHY.

Return Type

Binary.

Examples

GEOMETRY examples

SELECT ST_ASWKB( ST_GEOMETRYFROMWKT( 'SRID=4326;LINESTRING(400000 6000000, 401000 6010000)' ) ) AS pipeline_wkb; ┌────────────────────────────────────────────────────────────────────────────────────┐ │ pipeline_wkb │ ├────────────────────────────────────────────────────────────────────────────────────┤ │ 01020000000200000000000000006A18410000000060E3564100000000A07918410000000024ED5641 │ └────────────────────────────────────────────────────────────────────────────────────┘ SELECT ST_ASBINARY( ST_GEOMETRYFROMWKT( 'SRID=4326;POINT(-122.35 37.55)' ) ) AS pipeline_wkb; ┌────────────────────────────────────────────┐ │ pipeline_wkb │ ├────────────────────────────────────────────┤ │ 01010000006666666666965EC06666666666C64240 │ └────────────────────────────────────────────┘

GEOGRAPHY examples

SELECT ST_ASWKB( ST_GEOGFROMWKT( 'SRID=4326;POINT(-122.35 37.55)' ) ) AS pipeline_wkb; ╭────────────────────────────────────────────╮ │ pipeline_wkb │ ├────────────────────────────────────────────┤ │ 01010000006666666666965EC06666666666C64240 │ ╰────────────────────────────────────────────╯

Was this page helpful?