Re: extract or date_part on an interval? How many e
| От | Bryce Nesbitt |
|---|---|
| Тема | Re: extract or date_part on an interval? How many e |
| Дата | |
| Msg-id | 479D5F54.3040107@obviously.com обсуждение исходный текст |
| Ответ на | Re: extract or date_part on an interval? How many e (Tom Lane <tgl@sss.pgh.pa.us>) |
| Ответы |
Re: extract or date_part on an interval? How many e
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| Список | pgsql-sql |
Sigh. Ok, I settled on:<br /><blockquote><tt>select '1987-01-29'::timestamp + interval '21 years' > now();</tt><br /></blockquote>Which is closer to what I wanted anyway (this was all about determining who was under 21 years old). Thisat least should be robust over leap years.<br /><br /><br /> Tom Lane wrote:<br /><blockquote cite="mid:16843.1201489840@sss.pgh.pa.us"type="cite"><pre wrap="">There is nothing simple about datetime calculations, ever:-( </pre></blockquote><br /><pre class="moz-signature" cols="100">-- ---- Visit <a class="moz-txt-link-freetext" href="http://www.not-so-obviously.com/">http://www.not-so-obviously.com/</a> </pre>
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