Re: Implicit casts with generic arrays

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От Tom Lane
Тема Re: Implicit casts with generic arrays
Дата
Msg-id 28088.1181143380@sss.pgh.pa.us
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Ответ на Re: Implicit casts with generic arrays  (Alvaro Herrera <alvherre@commandprompt.com>)
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Alvaro Herrera <alvherre@commandprompt.com> writes:
> Tom Lane wrote:
>> I do have a plan B if people don't want to rename the operators, though.
>> It looks to me like we could eliminate the conflict if we invented a new
>> polymorphic pseudotype called "anynonarray" or some such, which would
>> act like anyelement *except* it would not match an array.
>> ...
>> I was a bit hesitant to propose this since I couldn't immediately think
>> of any other use-case for such a pseudotype.  It's not a huge amount of
>> added code (cf. anyenum) but it's definitely a visible wart on the type
>> system.  Comments?

> On the contrary, I would think that it fits nicely to "close the loop"
> on the anyarray/anyelement feature set.

OK, I'll go code this up and verify that it behaves like I think it will...
        regards, tom lane


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