SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 4)
    Identifier number (alias hello)
    Function toString (alias world) (children 1)
     ExpressionList (children 1)
      Identifier number
    Function tuple (alias tuple) (children 1)
     ExpressionList (children 2)
      Identifier hello
      Identifier world
    Function nullIf (alias sometimes_nulls) (children 1)
     ExpressionList (children 2)
      Function modulo (children 1)
       ExpressionList (children 2)
        Identifier hello
        Literal UInt64_3
      Literal UInt64_0
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.numbers
   Literal UInt64_10
   Set
 Identifier Pretty