Re: substr

Поиск
Список
Период
Сортировка
От Jeff MacDonald
Тема Re: substr
Дата
Msg-id Pine.BSF.4.21.0010191154400.9479-100000@rage.hub.org
обсуждение исходный текст
Ответ на Re: substr  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-sql
> Jeff MacDonald <jeff@hub.org> writes:
> > i noticed that substr behaves a bit different in pgsql than perl
> > ie select foo from table where substr(foo,1,1) = 'X';
> 
> > just wondering on the reasoning for this offset ?
> 
> Larry Wall and the SQL92 authors didn't talk to each other...

bastards :) now we gotta decide who to kill, larry or the sql folk.
i'd say the sql folk, 0 is just more inututive for computer counting.

but that's just me.. :) anyway thanks.

> 
> We are implementing SQL around here, not Perl, so we have to follow
> the SQL spec's definition of substr().
> 
>             regards, tom lane
> 

Jeff MacDonald,

-----------------------------------------------------
PostgreSQL Inc        | Hub.Org Networking Services
jeff@pgsql.com        | jeff@hub.org
www.pgsql.com        | www.hub.org
1-902-542-0713        | 1-902-542-3657
-----------------------------------------------------
Facsimile : 1 902 542 5386
IRC Nick  : bignose



В списке pgsql-sql по дате отправления:

Предыдущее
От: Tom Lane
Дата:
Сообщение: Re: substr
Следующее
От: Craig May
Дата:
Сообщение: COUNT