docs/api/sql/Geometry-Constructors/ST_LinestringFromWKB.md

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# ST_LinestringFromWKB

Introduction: Construct a LineString geometry from WKB string or Binary and an optional SRID. This function also supports EWKB format and it is an alias of [ST_LineFromWKB](ST_LineFromWKB.md).

!!!Note
	Returns null if geometry is not of type LineString.

Format:

`ST_LinestringFromWKB (Wkb: String)`

`ST_LinestringFromWKB (Wkb: Binary)`

`ST_LinestringFromWKB (Wkb: String, srid: Integer)`

`ST_LinestringFromWKB (Wkb: Binary, srid: Integer)`

Return type: `Geometry`

Since: `v1.6.1`

Example:

```sql
SELECT ST_LinestringFromWKB([01 02 00 00 00 02 00 00 00 00 00 00 00 84 D6 00 C0 00 00 00 00 80 B5 D6 BF 00 00 00 60 E1 EF F7 BF 00 00 00 80 07 5D E5 BF])
```

Output:

```
LINESTRING (-2.1047439575195312 -0.354827880859375, -1.49606454372406 -0.6676061153411865)
```