SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Function round (children 1)
       ExpressionList (children 1)
        Function multiply (children 1)
         ExpressionList (children 2)
          Literal UInt64_1000
          Function ngramDistance (children 1)
           ExpressionList (children 2)
            Literal \'abcdefgh\'
            Function materialize (children 1)
             ExpressionList (children 1)
              Literal \'defgh\'
      Function round (children 1)
       ExpressionList (children 1)
        Function multiply (children 1)
         ExpressionList (children 2)
          Literal UInt64_1000
          Function ngramDistance (children 1)
           ExpressionList (children 2)
            Function materialize (children 1)
             ExpressionList (children 1)
              Literal \'abcdefgh\'
            Literal \'defgh\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.numbers
   Literal UInt64_5