InsertQuery   (children 2)
 Identifier bug_14144
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 3)
     Function CAST (children 1)
      ExpressionList (children 2)
       Function toUUID (children 1)
        ExpressionList (children 1)
         Literal \'442d3ff4-842a-45bb-8b02-b616122c0dc6\'
       Literal \'Nullable(UUID)\'
     Identifier number
     Literal \'missing\'
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_1000