Re: VARIANT / ANYTYPE datatype

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От Tom Lane
Тема Re: VARIANT / ANYTYPE datatype
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Msg-id 19782.1304553053@sss.pgh.pa.us
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Ответ на Re: VARIANT / ANYTYPE datatype  ("David E. Wheeler" <david@kineticode.com>)
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"David E. Wheeler" <david@kineticode.com> writes:
> On May 4, 2011, at 3:04 PM, Alvaro Herrera wrote:
>> As someone commented downthread, they also want to have things such as a
>> "typeof" operator.  It could be used in (say) a plpgsql function to
>> choose different branches of code.

> FWIW, pg_typeof(any) has been in core since 9.0.

But note that pg_typeof() would surely say "VARIANT" if applied to such
a datatype.  You'd need some other, VARIANT-specific function that knew
enough to dig into the value at runtime and get the OID therein.
        regards, tom lane


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