Re: Strange nested loop for an INSERT
| От | Jim Nasby |
|---|---|
| Тема | Re: Strange nested loop for an INSERT |
| Дата | |
| Msg-id | 06b366f8-7e3d-ec7d-d146-1984818d3bcc@BlueTreble.com обсуждение исходный текст |
| Ответ на | Re: Strange nested loop for an INSERT (phb07 <phb07@apra.asso.fr>) |
| Ответы |
Re: Strange nested loop for an INSERT
|
| Список | pgsql-performance |
On 9/12/16 1:05 PM, phb07 wrote: > The drawback is the overhead of this added ANALYZE statement. With a > heavy processing like in this test case, it is worth to be done. But for > common cases, it's a little bit expensive. You could always look at the number of rows affected by a command and make a decision on whether to ANALYZE based on that, possibly by looking at pg_stat_all_tables.n_mod_since_analyze. -- Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX Experts in Analytics, Data Architecture and PostgreSQL Data in Trouble? Get it in Treble! http://BlueTreble.com 855-TREBLE2 (855-873-2532) mobile: 512-569-9461
В списке pgsql-performance по дате отправления: