From: | "Ludovico Magnocavallo" <ludo(at)experian(dot)it> |
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To: | "Jackson, DeJuan" <djackson(at)cpsgroup(dot)com>, <pgsql-general(at)postgreSQL(dot)org> |
Cc: | "PGSQL SQL" <pgsql-sql(at)postgreSQL(dot)org> |
Subject: | Re: [GENERAL] pqReadData() -- backend closed the channel unexpect edly. |
Date: | 1999-02-09 21:55:47 |
Message-ID: | 009001be5476$f6213c80$140aa8c0@deskproludo |
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Lists: | pgsql-general pgsql-sql |
Thanks again, Jackson, but your query is not right :(
Here is a sample output:
your query:
SELECT o.origine, sum(o.bytes), sum(d.bytes), '09/02/1999
00:59:59'::datetime
FROM day o, day d
where o.origine=d.destinazione
and o.origine << '194.74.133.0/24'
and o.when between '09/02/1999 00:00:01' and '09/02/1999 00:59:59'
and d.when between '09/02/1999 00:00:01' and '09/02/1999 00:59:59'
GROUP BY o.origine,4;
result (only for host 194.74.133.11, query is too long):
194.74.133.11|18569856|13493249|09/02/1999 00:59:59.00 MET
simple query to check first sum:
SELECT o.origine, sum(o.bytes)
FROM day o
where o.origine = '194.74.133.11'
and o.when between '09/02/1999 00:00:01' and '09/02/1999 00:59:59'
GROUP BY o.origine;
194.74.133.11|250944
Huge difference! Moreover, your query is slow, much much slower than two
separate queries. I would have used it though, if it worked. Postgresql
keeps crashing on my loop. :(
Thanks
L.
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