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Re: Drop all overloads of a function without knowing parameter types

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On Tue, Feb 4, 2014 at 8:35 AM, Alvaro Herrera <alvherre@xxxxxxxxxxxxxxx> wrote:
> Sergey Konoplev escribió:
>> On Mon, Feb 3, 2014 at 10:09 AM, Tom Lane <tgl@xxxxxxxxxxxxx> wrote:
>> > People periodically ask for extensions flavored more or less like this,
>> > but I'm suspicious of building any such thing into the core.  There's too
>> > little commonality in the exact conditions they want to search on.
>> > Leaving it at the level of a scripting problem, as above, allows arbitrary
>> > customization of the search condition.
>>
>> I understand the POV of both Evan and you here. However, I think that
>> there might be a good solution for this particular case - to allow
>> dropping functions by name only if it has the only signature, but if
>> there are 2 or more signatures then print an error specifying all the
>> forms of the function, eg.:
>>
>> ERROR: Can not drop function 'foo' because it has more then one
>> signature: foo(integer), foo(text).
>
> But that doesn't solve Evan's request.  He would want both functions
> gone, not an error.

Yes, I was mostly writing about the general case rather than about the OP's one.

-- 
Kind regards,
Sergey Konoplev
PostgreSQL Consultant and DBA

http://www.linkedin.com/in/grayhemp
+1 (415) 867-9984, +7 (901) 903-0499, +7 (988) 888-1979
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