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Assorted comment fixes, mostly just typos, but some obsolete statements.

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YAMAMOTO Takashi
This commit is contained in:
Tom Lane
2012-01-29 19:23:56 -05:00
parent dd243b3e40
commit ad10853b30
11 changed files with 24 additions and 20 deletions
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7
src/backend/access/transam/clog.c
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@ -44,9 +44,10 @@
*
* Note: because TransactionIds are 32 bits and wrap around at 0xFFFFFFFF,
* CLOG page numbering also wraps around at 0xFFFFFFFF/CLOG_XACTS_PER_PAGE,
* and CLOG segment numbering at 0xFFFFFFFF/CLOG_XACTS_PER_SEGMENT. We need
* take no explicit notice of that fact in this module, except when comparing
* segment and page numbers in TruncateCLOG (see CLOGPagePrecedes).
* and CLOG segment numbering at
* 0xFFFFFFFF/CLOG_XACTS_PER_PAGE/SLRU_PAGES_PER_SEGMENT. We need take no
* explicit notice of that fact in this module, except when comparing segment
* and page numbers in TruncateCLOG (see CLOGPagePrecedes).
*/
/* We need two bits per xact, so four xacts fit in a byte */