| From: | Chris <dmagick(at)gmail(dot)com> |
|---|---|
| To: | henryJack <henryJack85(at)yahoo(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: What secret resipy of PostgreSQL (insert more faster than delete)? |
| Date: | 2007-07-10 01:03:00 |
| Message-ID: | 4692DAC4.1060605@gmail.com |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
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| Lists: | pgsql-general |
henryJack wrote:
> What secret resipy of PostgreSQL (insert more faster than delete)?
>
> I doing an investigation on PostgreSQL, I figure out PostgreSQL powerful in
> inserting data into the database.
>
> We normally, expect that insert more slow than select and delete queries
> because database have to create a row then set the data one by one into the
> database (in between check is it the row correct to inside?)....
>
> Delete just delete the whole row that checked ones.
Not really. I don't know the nitty-gritty of how postgres does it's work
but foreign key checks, triggers, rules, the number of indexes in a
table (amongst other things) can all affect insert, update and delete
speeds.
--
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