Re: FETCH FIRST clause PERCENT option
| От | Surafel Temesgen |
|---|---|
| Тема | Re: FETCH FIRST clause PERCENT option |
| Дата | |
| Msg-id | CALAY4q_t3nUGkCrhWs3=a3ZgbcR-KCzam+6Vtgm1bYuCPT+4wQ@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: FETCH FIRST clause PERCENT option (Erik Rijkers <er@xs4all.nl>) |
| Список | pgsql-hackers |
On Mon, Aug 19, 2019 at 1:55 PM Erik Rijkers <er@xs4all.nl> wrote:
Another little thing, not sure it's a bug:
limit interprets its argument by rounding up or down as one would
expect:
table onek limit 10.4; --> gives 10 rows
table onek limit 10.6; --> gives 11 rows
but FETCH count PERCENT does not do that; it rounds always up.
select * from (table onek limit 100) f fetch first 10.4 percent rows
only; --> gives 11 rows
select * from (table onek limit 100) f fetch first 10.6 percent rows
only; --> gives 11 rows
I see that it's documented in the .sgml to behave as it does, but it
seems wrong to me;
shouldn't that 10.4-percent-query yield 10 rows instead of 11?
According to sql standard we have to use the result ceiling value
regards
Surafel
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