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From: Grigory Batalov <grisxa@mail.ru>
To: community@altlinux.ru
Subject: [Comm] Re: PostgreSQL string functions
Date: Tue, 4 Feb 2003 11:12:53 +0300
Message-ID: <20030204081253.GA12718@lrn.ru> (raw)

Tue, 4 Feb 2003 10:57:30 +0300 Korshunov Ilya wrote:

>> Собственно, вопрос:
>> Есть ли в postgres такая функция strstr, substr или им подобные,
>> чтобы сделать сразу select substr(strstr(login,'\'),1) as login ?
>> Или можно решить эту задачу другим способом?

>не очень въехал в суть проблемы...

Пример:
select login, sum(bytes) as bytes from squid_raw_log where time >= $time1 and time < $time2 group by login order by bytes desc

возвращает:

uprav_nt\gvf => 22881837
uprav_nt\ben1 => 8947084
uprav_nt\osa => 4804259
uprav_nt\paa => 4041611
uprav_nt\vds => 3987697
ben1 => 1281094
uprav_nt\dvt => 827048
uprav_nt\kna => 802962
uprav_nt\paa1 => 520926
uprav_nt\rea => 471475
dvt => 117810
root => 1753

где uprav_nt\dvt и dvt - один и тот же человек.
Хочу их складывать ещё привыборке. Как вычленить "uprav_nt\",
если оно есть?

--
 Grigory Batalov


             reply	other threads:[~2003-02-04  8:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-02-04  8:12 Grigory Batalov [this message]
2003-02-04  8:45 ` Maxim Tyurin
2003-02-04  9:15   ` Dmytro O. Redchuk

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