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