Re: Add generate_series(date,date) and generate_series(date,date,integer)

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От Michael Paquier
Тема Re: Add generate_series(date,date) and generate_series(date,date,integer)
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Msg-id CAB7nPqRoFNJCvVCeuTQx3SE3P8w_2KjxouobYL7a8R+couY64Q@mail.gmail.com
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Ответ на Re: Add generate_series(date,date) and generate_series(date,date,integer)  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Add generate_series(date,date) and generate_series(date,date,integer)  (Corey Huinker <corey.huinker@gmail.com>)
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On Mon, Feb 22, 2016 at 6:52 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Oooh ... actually, that works today if you consider the SRF-in-targetlist
> case:
>
> regression=# select generate_series(now(), 'infinity', '1 day') limit 10;
>         generate_series
> -------------------------------
>  2016-02-21 16:51:03.303064-05
>  2016-02-22 16:51:03.303064-05
>  2016-02-23 16:51:03.303064-05
>  2016-02-24 16:51:03.303064-05
>  2016-02-25 16:51:03.303064-05
>  2016-02-26 16:51:03.303064-05
>  2016-02-27 16:51:03.303064-05
>  2016-02-28 16:51:03.303064-05
>  2016-02-29 16:51:03.303064-05
>  2016-03-01 16:51:03.303064-05
> (10 rows)
>
> Time: 8.457 ms
>
> Given that counterexample, I think we not only shouldn't back-patch such a
> change but should reject it altogether.

Ouch, good point. The overflows are a different problem that we had
better address though (still on my own TODO list)...
-- 
Michael



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