SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function LinfDistance (children 1)
     ExpressionList (children 2)
      Identifier v
      Function materialize (children 1)
       ExpressionList (children 1)
        Literal Array_[UInt64_0, Int64_-2, UInt64_0]
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier vec1