Re: FETCH FIRST clause PERCENT option

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От Erik Rijkers
Тема Re: FETCH FIRST clause PERCENT option
Дата
Msg-id 1754c1e3713312d54d1ce71777f5b472@xs4all.nl
обсуждение исходный текст
Ответ на Re: FETCH FIRST clause PERCENT option  (Surafel Temesgen <surafel3000@gmail.com>)
Ответы Re: FETCH FIRST clause PERCENT option  (Surafel Temesgen <surafel3000@gmail.com>)
Список pgsql-hackers
On 2019-08-19 11:18, Surafel Temesgen wrote:
> 
> [..]
> 
> [percent-incremental-v7.patch]

Thanks.


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?


thanks,

Erik Rijkers











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