SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function round (children 1)
     ExpressionList (children 2)
      Function abs (children 1)
       ExpressionList (children 1)
        Function minus (children 1)
         ExpressionList (children 2)
          Function corrStable (children 1)
           ExpressionList (children 2)
            Identifier x_value
            Identifier y_value
          Function divide (children 1)
           ExpressionList (children 2)
            Function covarPopStable (children 1)
             ExpressionList (children 2)
              Identifier x_value
              Identifier y_value
            Function multiply (children 1)
             ExpressionList (children 2)
              Function stddevPopStable (children 1)
               ExpressionList (children 1)
                Identifier x_value
              Function stddevPopStable (children 1)
               ExpressionList (children 1)
                Identifier y_value
      Literal UInt64_6
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier series
