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Minor rewording of README comments

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Simon Riggs 2013-04-08 17:20:26 +01:00
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commit e60d20a35e
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src/backend/storage/page/README
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@ -44,7 +44,7 @@ record a full page image in WAL. Hint bits updates should be protected using
MarkBufferDirtyHint(), which is responsible for writing the full-page image
when necessary.
Note that when we write a page checksum we include the hopefully zero bytes
Note that when we write a page checksum we include the hopefully zeroed bytes
that form the hole in the centre of a standard page. Thus, when we read the
block back from storage we implicitly check that the hole is still all zeroes.
We do this to ensure that we spot errors that could have destroyed data even