{
  "name": "x_min",
  "type": "function",
  "groups": ["GeometryGroup"],
  "description": "Returns the minimum x coordinate of a geometry. Calculations are in the spatial reference system of this geometry.",
  "arguments": [{
    "arg": "geometry",
    "description": "a geometry"
  }],
  "examples": [{
    "expression": "x_min( geom_from_wkt( 'LINESTRING(2 5, 3 6, 4 8)') )",
    "returns": "2"
  }],
  "tags": ["coordinate", "spatial", "reference", "calculations", "system", "minimum"]
}