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Diffstat (limited to 'src/backend/storage/page/README')
| -rw-r--r-- | src/backend/storage/page/README | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/storage/page/README b/src/backend/storage/page/README index 5127d98da37..f873fb0eea1 100644 --- a/src/backend/storage/page/README +++ b/src/backend/storage/page/README @@ -9,7 +9,8 @@ have a very low measured incidence according to research on large server farms, http://www.cs.toronto.edu/~bianca/papers/sigmetrics09.pdf, discussed 2010/12/22 on -hackers list. -Current implementation requires this be enabled system-wide at initdb time. +Checksums can be enabled at initdb time, but can also be turned on and off +using pg_enable_data_checksums()/pg_disable_data_checksums() at runtime. The checksum is not valid at all times on a data page!! The checksum is valid when the page leaves the shared pool and is checked |