Re: Running update in chunks?

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От Jeff Janes
Тема Re: Running update in chunks?
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Msg-id CAMkU=1zEfWqz+Wj=FJPjXVuoiupLmZ7Rsd9PHwr1GiGQX1YMFg@mail.gmail.com
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Ответ на Re: Running update in chunks?  (Tim Uckun <timuckun@gmail.com>)
Ответы Re: Running update in chunks?  (Tim Uckun <timuckun@gmail.com>)
Re: Running update in chunks?  (Tim Uckun <timuckun@gmail.com>)
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On Monday, January 21, 2013, Tim Uckun wrote:
> First off, what does it say for rows affected? (Hint, if you really
> are using a default configuration and it doesn't say 0 rows
> affected, please show us the actual query used.)

update imports set make_id = null

Query returned successfully: 98834 rows affected, 49673 ms execution time.


vacuum analyze imports

Query returned successfully with no result in 4138 ms.

VACUUM FULL imports;

What if you do:
alter table cars.imports set (fillfactor=50);
Before the vacuum full, and then try the update again?
 
Cheers,

Jeff

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