{
  "name": "touches",
  "type": "function",
  "groups": ["GeometryGroup"],
  "description": "Tests whether a geometry touches another. Returns TRUE if the geometries have at least one point in common, but their interiors do not intersect.",
  "arguments": [{
    "arg": "geometry1",
    "description": "a geometry"
  }, {
    "arg": "geometry2",
    "description": "a geometry"
  }],
  "examples": [{
    "expression": "touches( geom_from_wkt( 'LINESTRING(5 3, 4 4)' ), geom_from_wkt( 'LINESTRING(3 3, 4 4, 5 5)' ) )",
    "returns": "TRUE"
  }, {
    "expression": "touches( geom_from_wkt( 'POINT(4 4)' ), geom_from_wkt( 'POINT(5 5)' ) )",
    "returns": "FALSE"
  }],
  "tags": ["point", "common", "touches", "interiors", "tests", "intersect"]
}