The ST_MLineFromKML() function
The ST_MLineFromKML() function takes a KML MultiLineString string and an optional spatial reference ID and returns a multipart polyline object. A KML MultiLineString string can contain the KML shape attributes <extrude>, <tessellate>, and <altitudeMode>, but they are ignored in the ST_MultiLineString representation.
Syntax
ST_MLineFromKML(kmlstring lvarchar)
ST_MLineFromKML(kmlstring lvarchar, SRID integer)
Return type
ST_MultiLineString
Example
EXECUTE FUNCTION ST_MLineFromKML(<MultiGeometry>
<LineString>
<coordinates>
-122.4425587930444,37.80666418607323,0
-122.4428379594768,37.80663578323093,0
</coordinates>
</LineString>
<LineString>
<coordinates>
-122.4425509770566,37.80662588061205,0
-122.4428340530617,37.8065999493009,0
</coordinates>
</LineString>
</MultiGeometry>,4);