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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2003-06-26 18:23:07 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2003-06-26 18:23:07 +0000 |
| commit | 0c985ab5a86b4ca9d8e312bfd0db5536b2be121e (patch) | |
| tree | 7f878e01a33de7f471ba75d7c3fc394b192d0ca3 /src | |
| parent | 4505653e54eb768c2ec4777638cc900859f0175a (diff) | |
| download | postgresql-0c985ab5a86b4ca9d8e312bfd0db5536b2be121e.tar.gz postgresql-0c985ab5a86b4ca9d8e312bfd0db5536b2be121e.zip | |
Add comment pointing out that XLByteToPrevSeg macro is not broken.
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/access/transam/xlog.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index 7fa274922b0..47232fe5ce1 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Header: /cvsroot/pgsql/src/backend/access/transam/xlog.c,v 1.116 2003/05/22 14:39:28 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/access/transam/xlog.c,v 1.117 2003/06/26 18:23:07 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -347,7 +347,8 @@ static ControlFileData *ControlFile = NULL; * For XLByteToSeg, do the computation at face value. For XLByteToPrevSeg, * a boundary byte is taken to be in the previous segment. This is suitable * for deciding which segment to write given a pointer to a record end, - * for example. + * for example. (We can assume xrecoff is not zero, since no valid recptr + * can have that.) */ #define XLByteToSeg(xlrp, logId, logSeg) \ ( logId = (xlrp).xlogid, \ |