SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Identifier Title
    Function round (children 1)
     ExpressionList (children 1)
      Function multiply (children 1)
       ExpressionList (children 2)
        Literal UInt64_1000
        Identifier distance
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_distance
   ExpressionList (children 2)
    OrderByElement (children 1)
     Function ngramDistance (alias distance) (children 1)
      ExpressionList (children 2)
       Identifier Title
       Literal \'metrica\'
    OrderByElement (children 1)
     Identifier Title
