{
  "name": "geom_to_wkt",
  "type": "function",
  "groups": ["GeometryGroup"],
  "description": "Returns the Well-Known Text (WKT) representation of the geometry without SRID metadata.",
  "arguments": [ {"arg":"geometry","description":"a geometry"},
                 {"arg":"precision","description":"numeric precision", "optional":true, "default":"8"}],
  "examples": [ { "expression":"geom_to_wkt( make_point(6, 50) )", "returns":"'POINT(6 50)'"},
                { "expression":"geom_to_wkt(centroid(geom_from_wkt('Polygon((1 1, 0 0, -1 1, 1 1))')))", "returns":"'POINT(0 0.66666667)'"},
                { "expression":"geom_to_wkt(centroid(geom_from_wkt('Polygon((1 1, 0 0, -1 1, 1 1))')), 2)", "returns":"'POINT(0 0.67)'"}
 ]
}