SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function sparseGramsHashes (children 1)
     ExpressionList (children 1)
      Function concat (children 1)
       ExpressionList (children 3)
        Literal \'hello \'
        Identifier number
        Literal \' world\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_3
