SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function dictGetUInt64 (children 1)
     ExpressionList (children 3)
      Literal \'foo 1234.dict\'
      Literal \'val\'
      Function toUInt64 (children 1)
       ExpressionList (children 1)
        Literal UInt64_0
