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Diffstat (limited to 'src/backend/storage/buffer/README')
| -rw-r--r-- | src/backend/storage/buffer/README | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/backend/storage/buffer/README b/src/backend/storage/buffer/README index 696e5e8c305..62b2eccec79 100644 --- a/src/backend/storage/buffer/README +++ b/src/backend/storage/buffer/README @@ -1,4 +1,4 @@ -$PostgreSQL: pgsql/src/backend/storage/buffer/README,v 1.15 2008/11/06 20:51:14 tgl Exp $ +$PostgreSQL: pgsql/src/backend/storage/buffer/README,v 1.16 2009/02/18 15:58:41 heikki Exp $ Notes About Shared Buffer Access Rules ====================================== @@ -268,3 +268,8 @@ out (and anyone else who flushes buffer contents to disk must do so too). This ensures that the page image transferred to disk is reasonably consistent. We might miss a hint-bit update or two but that isn't a problem, for the same reasons mentioned under buffer access rules. + +As of 8.4, background writer starts during recovery mode when there is +some form of potentially extended recovery to perform. It performs an +identical service to normal processing, except that checkpoints it +writes are technically restartpoints. |