Search Postgresql Archives

Re: For index bloat: VACUUM ANALYZE vs REINDEX/CLUSTER

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> Not quite.  Once a page has reached it's fill factor percentage full,  
> no more inserts will happen on that page, only updates.  Also, I  
> think you have large/small backwards wrt fill factor.  If  you have a  
> fill factor of, say, 40% then once a page has reached 40% full no  
> more inserts will happen (unless some space is reclaimed by vacuum).   
> So, smaller fill factors == bigger holes.  The bigger the fill  
> factor, the smaller the whole:  if you have a fill factor of 90%,  
> only 10% is reserved for updates of rows on that page.

So (just to reiterate), fill factor can be applied to both a table and/or an index(es).  But the
"holes" built into the page of a table or index can only be filled by UPDATE Statements.

Thanks for the clarification!

Regards,

Richard Broesma Jr.


---------------------------(end of broadcast)---------------------------
TIP 1: if posting/reading through Usenet, please send an appropriate
       subscribe-nomail command to majordomo@xxxxxxxxxxxxxx so that your
       message can get through to the mailing list cleanly

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux