Re: COUNT and Performance ...
От | Hans-Jürgen Schönig |
---|---|
Тема | Re: COUNT and Performance ... |
Дата | |
Msg-id | 3E3D5D16.5000204@cybertec.at обсуждение исходный текст |
Ответ на | COUNT and Performance ... (Hans-Jürgen Schönig <postgres@cybertec.at>) |
Список | pgsql-hackers |
Neil Conway wrote: >On Sun, 2003-02-02 at 03:55, Hans-Jürgen Schönig wrote: > > >>If people want to count ALL rows of a table. The contrib stuff is pretty >>useful. It seems to be transaction safe. >> >> > >Interesting -- I didn't know about the contrib stuff. I'll update the >docs patch. > >Cheers, > >Neil > > Personall I think a system table containing information about all tables in the database would be best. The contrib stuff provides a lot of useful information which would be perfect for a system view (dead tuples, number of records, ...). I guess many people would consider that to be useful. This would not fix the COUNT problem but it would provide the most essential information people need: The number of records in the table. Maybe this is worth discussing. Regards, Hans -- *Cybertec Geschwinde u Schoenig* Ludo-Hartmannplatz 1/14, A-1160 Vienna, Austria Tel: +43/1/913 68 09; +43/664/233 90 75 www.postgresql.at <http://www.postgresql.at>, cluster.postgresql.at <http://cluster.postgresql.at>, www.cybertec.at <http://www.cybertec.at>, kernel.cybertec.at <http://kernel.cybertec.at>
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