Re: what's difference between vacuum analyze and analyze?

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От Chris Angelico
Тема Re: what's difference between vacuum analyze and analyze?
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Msg-id CAPTjJmq_0LDEu1ZiD9jt5PQ6mvGzz8BpBWZ0JzCAfVLwmj4PZg@mail.gmail.com
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Ответ на what's difference between vacuum analyze and analyze?  (leaf_yxj <leaf_yxj@163.com>)
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On Thu, Mar 29, 2012 at 2:24 AM, leaf_yxj <leaf_yxj@163.com> wrote:
> I was asked to write a security definer function to make other user can issue
> vacuum and analyze command? Friends in this community said vacuum doesn't
> work inside the function or multi command. How about analyze.  I know vacuum
> is something much like oracle shrink which is used to reorganize the space
> in the disk.  Analyze is used to collect the statistic info of the table.
> Does analyze works in Function or mulit-commands?

There's an easy way to find out. Try it, and see if you get an error back!

http://www.catb.org/~esr/faqs/smart-questions.html

You may find that it isn't possible. If so, you may want to consider a
non-SQL solution; for instance, a shell script that invokes
vacuum/analyze.

Chris Angelico

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