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| author | Bruce Momjian <bruce@momjian.us> | 2005-06-17 02:20:43 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2005-06-17 02:20:43 +0000 |
| commit | 1b618e50a6eb422b0cffec33ee78201c2dae9f8d (patch) | |
| tree | bd4ef50f64bafa17e7855b200b01430f3143907d /src/backend/commands/async.c | |
| parent | a6c7e843da693695fabbd7891dabb7892703e45d (diff) | |
| download | postgresql-1b618e50a6eb422b0cffec33ee78201c2dae9f8d.tar.gz postgresql-1b618e50a6eb422b0cffec33ee78201c2dae9f8d.zip | |
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 'src/backend/commands/async.c')
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