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Postgres FD Implementation
Commit eff5b245 authored by Magnus Hagander's avatar Magnus Hagander
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Document that pg_checksums exists in checksums README 

Author: Daniel Gustafsson <daniel@yesql.se>
parent 49bf8153
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src/backend/storage/page/README
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...@@ -9,7 +9,8 @@ have a very low measured incidence according to research on large server farms, ...@@ -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 http://www.cs.toronto.edu/~bianca/papers/sigmetrics09.pdf, discussed
2010/12/22 on -hackers list. 2010/12/22 on -hackers list.
Current implementation requires this be enabled system-wide at initdb time. Current implementation requires this be enabled system-wide at initdb time, or
by using the pg_checksums tool on an offline cluster.
The checksum is not valid at all times on a data page!! 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 The checksum is valid when the page leaves the shared pool and is checked
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