ALT Linux Community general discussions
 help / color / mirror / Atom feed
From: Grigory Batalov <grisxa@mail.ru>
To: community@altlinux.ru
Subject: [Comm] Re: PostgreSQL string functions
Date: Tue, 4 Feb 2003 12:31:51 +0300
Message-ID: <20030204093151.GA29699@lrn.ru> (raw)

Tue, 4 Feb 2003 11:15:52 +0200 Dmytro O. Redchuk 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?
>Мне кажется, можно.
>(Там в доке много строковых функций).

>(Или ошибаюсь?..)

Есть!
Несколько громоздко получилось, но зато работает:

select substring(login from position(chr(92) in login) + 1) as login,
sum(bytes) as bytes from squid_raw_log where time >= $time1 and time < $time2
group by substring(login from position(chr(92) in login) + 1) order by bytes
desc;

Что скажете? $time1 и $time2 задаются из php для уменьшения выборки.

-- 
 Grigory Batalov


                 reply	other threads:[~2003-02-04  9:31 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20030204093151.GA29699@lrn.ru \
    --to=grisxa@mail.ru \
    --cc=community@altlinux.ru \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

ALT Linux Community general discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror http://lore.altlinux.org/community/0 community/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 community community/ http://lore.altlinux.org/community \
		mandrake-russian@linuxteam.iplabs.ru community@lists.altlinux.org community@lists.altlinux.ru community@lists.altlinux.com
	public-inbox-index community

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://lore.altlinux.org/org.altlinux.lists.community


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git