diff options
| author | Bruce Momjian | 2005-06-17 02:20:43 +0000 |
|---|---|---|
| committer | Bruce Momjian | 2005-06-17 02:20:43 +0000 |
| commit | 1b618e50a6eb422b0cffec33ee78201c2dae9f8d (patch) | |
| tree | bd4ef50f64bafa17e7855b200b01430f3143907d /doc/src | |
| parent | a6c7e843da693695fabbd7891dabb7892703e45d (diff) | |
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.
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/FAQ/TODO.html | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/src/FAQ/TODO.html b/doc/src/FAQ/TODO.html index d96c5d08904..86a33285da4 100644 --- a/doc/src/FAQ/TODO.html +++ b/doc/src/FAQ/TODO.html @@ -8,7 +8,7 @@ <body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF"> <h1><a name="section_1">PostgreSQL TODO List</a></h1> <p>Current maintainer: Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/> -Last updated: Tue Jun 14 19:44:43 EDT 2005 +Last updated: Thu Jun 16 22:20:43 EDT 2005 </p> <p>The most recent version of this document can be viewed at<br/> <a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>. @@ -736,6 +736,12 @@ first. <p> This allows vacuum to target specific pages for possible free space without requiring a sequential scan. </p> + </li><li>Create a bitmap of pages that need vacuuming +<p> 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. +</p> </li><li>Auto-vacuum <ul> <li>Move into the backend code |