Re: Postgres v MySQL 5.0
От | Lukas Kahwe Smith |
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Тема | Re: Postgres v MySQL 5.0 |
Дата | |
Msg-id | 4543B7E1.3070208@pooteeweet.org обсуждение исходный текст |
Ответ на | Re: Postgres v MySQL 5.0 (Michael Dean <mdean@sourceview.com>) |
Список | pgsql-advocacy |
Michael Dean wrote: > just a little side note. We have had postgresql 8 up and running on > some of our websites now for 18 months or so. we were able to fresh > install it with one of our php based template systems in a little over > an hour, with not a squeek of problem since. works right out of the > box! With that kind of reliability, why do we need a dba? my last postgresql installs were a breeze. the point is more that if you want replication you actually have a choice. some things need to be pulled from contrib modules etc. in mysql most things come out of the box and there are less choices to make. that being said, your chances of getting a bad query plan are much higher with mysql (for example mysql only supports nested loop joins .. no hash or sort merge joins). but i guess a lot of these applications stay below the in my experience magic mark of joining more than 5 tables. so they are not bitten by this problem all that often. regards, Lukas
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