SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function pointInPolygon (children 1)
     ExpressionList (children 2)
      Identifier pt
      Identifier poly
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier polygons
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier id
