| From: | momjian(at)svr1(dot)postgresql(dot)org (Bruce Momjian) |
|---|---|
| To: | pgsql-committers(at)postgresql(dot)org |
| Subject: | pgsql: Add: > > * Create a bitmap of pages that need vacuuming > > |
| Date: | 2005-06-17 02:20:43 |
| Message-ID: | 20050617022043.733D852954@svr1.postgresql.org |
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| Lists: | pgsql-committers |
Log Message:
-----------
Add:
>
> * Create a bitmap of pages that need vacuuming
>
> Instead of sequentially scanning the entire table, have the background
> writer or some other process record pages that have expired rows, then
> VACUUM can look at just those pages rather than the entire table. In
> the event of a system crash, the bitmap would probably be invalidated.
Modified Files:
--------------
pgsql/doc:
TODO (r1.1563 -> r1.1564)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1563&r2=1.1564)
pgsql/doc/src/FAQ:
TODO.html (r1.70 -> r1.71)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.70&r2=1.71)
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