Re: Open 7.1 items

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От Bruce Momjian
Тема Re: Open 7.1 items
Дата
Msg-id 200101262057.PAA05769@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: Open 7.1 items  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Open 7.1 items  (Tom Lane <tgl@sss.pgh.pa.us>)
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> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Here are my open 7.1 items.  Thanks for shrinking the list so far.
> 
> > SELECT cash_out(1) crashes all backends
> 

OK, removed from 'open' list and added to TODO.  Actually, I can't get
the crash to happen except with cash_out.  Is there another *out
function you can get to fail.


> This isn't a "must fix for 7.1", any more than it was for 7.0, 6.5,
> or any other release back to the beginning of time.  It's always been
> possible to crash the backend by passing an incompatible argument to
> a type input or output function.  The type-checking system cannot
> detect the error because these functions are (mostly) declared to
> take "any" input type (zero entry in proargtypes[]).
> 
> The only clean way to fix this is to declare I/O functions honestly.
> That will require (a) a type-system representation for "C string"
> and (b) a solution to the circularity issue for user-defined types.
> If the I/O functions have to be declared first, how can they refer
> to the type?
> 
> Quite aside from the time involved, this will require an initdb.
> It's a bit late in the cycle for that.
> 
>             regards, tom lane
> 


--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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