| From: | Gokulakannan Somasundaram <gokul007(at)gmail(dot)com> |
|---|---|
| To: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: the big picture for index-only scans |
| Date: | 2011-08-21 08:18:42 |
| Message-ID: | CAHMh4-YPYmVbysur3a9LJkG3Ld04mpPUnwP_5r7RGczK10rjnQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
>
> a) First, my understanding of checkpoint is that it flushes all the pages,
> that got changed below a particular LSN. If we are not having a LSN in the
> visibility map, how we will be sure, that a visibility map page is getting
> flushed/not?
>
Please ignore this statement. I confused between the checkpoints
implemented in Postgres and some other database.
Gokul.
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