pg.ddx.io pgsql-sql@postgresql.org mailing list archive
help / color / mirror / Atom feedCIdr query qestion
3+ messages / 3 participants
[nested] [flat]
* CIdr query qestion
@ 2007-07-10 07:36 Michele Petrazzo - Unipex srl <michele.petrazzo@unipex.it>
2007-07-10 09:00 ` Re: CIdr query qestion Jesper K. Pedersen <jkp@solnet.homeip.net>
2007-07-10 09:16 ` Re: CIdr query qestion Michael Fuhr <mike@fuhr.org>
0 siblings, 2 replies; 3+ messages in thread
From: Michele Petrazzo - Unipex srl @ 2007-07-10 07:36 UTC (permalink / raw)
To: pgsql-sql
Hi ml!
A question about cidr query. I'm tring to use the various cidr functions
to exclude a A sub class, but I don't understand how use it:
SELECT count(ip_addr), ip_addr from wi_log_network where ip_addr !=
network('10.10.0.0/16', 16) group by (ip_addr);
it don't exclude the 10.10 ! Tried also the abbr or set_masklen keyword,
but the same. How do it?
P.s. Tried the >>, but it only include the values that I want to
exclude! (And I don't found how to do the opposite!)
Thanks,
Michele
Attachments:
smime.p7s (application/x-pkcs7-signature, 3.2K) download
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: CIdr query qestion
2007-07-10 07:36 CIdr query qestion Michele Petrazzo - Unipex srl <michele.petrazzo@unipex.it>
@ 2007-07-10 09:00 ` Jesper K. Pedersen <jkp@solnet.homeip.net>
1 sibling, 0 replies; 3+ messages in thread
From: Jesper K. Pedersen @ 2007-07-10 09:00 UTC (permalink / raw)
To: pgsql-sql
On Tue, 10 Jul 2007 09:36:49 +0200
Michele Petrazzo - Unipex srl <michele.petrazzo@unipex.it> wrote:
> Hi ml!
>
> A question about cidr query. I'm tring to use the various cidr
> functions to exclude a A sub class, but I don't understand how use it:
>
> SELECT count(ip_addr), ip_addr from wi_log_network where ip_addr !=
> network('10.10.0.0/16', 16) group by (ip_addr);
>
> it don't exclude the 10.10 ! Tried also the abbr or set_masklen
> keyword, but the same. How do it?
>
> P.s. Tried the >>, but it only include the values that I want to
> exclude! (And I don't found how to do the opposite!)
>
Couldnt you do a :
select count(ip_addr), ip_addr from wi_log_network where not (ip_addr
<< '10.10.0.0/16') group by (ip_addr);
Best regards
Jesper K. Pedersen
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: CIdr query qestion
2007-07-10 07:36 CIdr query qestion Michele Petrazzo - Unipex srl <michele.petrazzo@unipex.it>
@ 2007-07-10 09:16 ` Michael Fuhr <mike@fuhr.org>
1 sibling, 0 replies; 3+ messages in thread
From: Michael Fuhr @ 2007-07-10 09:16 UTC (permalink / raw)
To: Michele Petrazzo - Unipex srl <michele.petrazzo@unipex.it>; +Cc: pgsql-sql
On Tue, Jul 10, 2007 at 09:36:49AM +0200, Michele Petrazzo - Unipex srl wrote:
> A question about cidr query. I'm tring to use the various cidr functions
> to exclude a A sub class, but I don't understand how use it:
>
> SELECT count(ip_addr), ip_addr from wi_log_network where ip_addr !=
> network('10.10.0.0/16', 16) group by (ip_addr);
>
> it don't exclude the 10.10 ! Tried also the abbr or set_masklen keyword,
> but the same. How do it?
Please post the actual query you're running. The above fails with
ERROR: function network("unknown", integer) does not exist
Does the following help?
CREATE TABLE test (id integer PRIMARY KEY, ip_addr inet NOT NULL);
INSERT INTO test (id, ip_addr) VALUES (1, '10.2.3.4');
INSERT INTO test (id, ip_addr) VALUES (2, '10.10.5.6');
SELECT id,
ip_addr,
set_masklen(ip_addr, 16),
network(set_masklen(ip_addr, 16)),
network(set_masklen(ip_addr, 16)) = '10.10.0.0/16',
'10.10.0.0/16'::cidr >> ip_addr,
NOT '10.10.0.0/16'::cidr >> ip_addr
FROM test;
id | ip_addr | set_masklen | network | ?column? | ?column? | ?column?
----+-----------+--------------+--------------+----------+----------+----------
1 | 10.2.3.4 | 10.2.3.4/16 | 10.2.0.0/16 | f | f | t
2 | 10.10.5.6 | 10.10.5.6/16 | 10.10.0.0/16 | t | t | f
(2 rows)
> P.s. Tried the >>, but it only include the values that I want to
> exclude! (And I don't found how to do the opposite!)
You can use NOT to negate a boolean expression; see above.
--
Michael Fuhr
^ permalink raw reply [nested|flat] 3+ messages in thread
end of thread, other threads:[~2007-07-10 09:16 UTC | newest]
Thread overview: 3+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2007-07-10 07:36 CIdr query qestion Michele Petrazzo - Unipex srl <michele.petrazzo@unipex.it>
2007-07-10 09:00 ` Jesper K. Pedersen <jkp@solnet.homeip.net>
2007-07-10 09:16 ` Michael Fuhr <mike@fuhr.org>
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox