Re: Patch: shouldn't timezone(text, timestamp[tz]) be STABLE?

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От Aleksander Alekseev
Тема Re: Patch: shouldn't timezone(text, timestamp[tz]) be STABLE?
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Msg-id CAJ7c6TNmKF_7vDiNJTVzRUCtMU82FOd6FbszTMMWgX7pKacTDw@mail.gmail.com
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Ответ на Re: Patch: shouldn't timezone(text, timestamp[tz]) be STABLE?  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Patch: shouldn't timezone(text, timestamp[tz]) be STABLE?  (Tom Lane <tgl@sss.pgh.pa.us>)
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Hi Tom,

Thanks for the quick reply.

> I don't see a lot of argument for treating tzdata changes differently
> from OS locale changes.

Got it. But in this case, what's your opinion on the differences between date_trunc() and timezone()? Shouldn't date_trunc() be always IMMUTABLE as well?

I can see pros and cons to be IMMUTABLE _or_ STABLE when dealing with time zones, but at least PostgreSQL should be consistent in this, right?

--
Best regards,
Aleksander Alekseev

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