Re: FILLFACTOR and increasing index
От | Leonardo Francalanci |
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Тема | Re: FILLFACTOR and increasing index |
Дата | |
Msg-id | 873165.76105.qm@web29002.mail.ird.yahoo.com обсуждение исходный текст |
Ответ на | Re: FILLFACTOR and increasing index (Tomas Vondra <tv@fuzzy.cz>) |
Ответы |
Re: FILLFACTOR and increasing index
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Список | pgsql-general |
> Yes, I use the same approach, but I'm not aware of any such guideline > related to fillfactor with indexes. Anyway those guidelines need to be > written by someone, so you have a great opportunity ;-) I did a quick test using your example. As in your test, "increasing" values don't get any gain from a different fillfactor. I tried a random index: create table test_fill (id int); create index test_fill_idx on test_fill(id) with (fillfactor=100); insert into test_fill select (random()*100000)::integer from generate_series(1,10000000) i; time: 373936.724 drop table test_fill; create table test_fill (id int); create index test_fill_idx on test_fill(id) with (fillfactor=50); insert into test_fill select (random()*100000)::integer from generate_series(1,10000000) i; time: 393209.911 not much difference... Now I'm getting confused... is which cases fillfactor makes a difference???
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