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Diffstat (limited to 'src/backend/storage/smgr/md.c')
| -rw-r--r-- | src/backend/storage/smgr/md.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/src/backend/storage/smgr/md.c b/src/backend/storage/smgr/md.c index bd46d3dbd52..420413a510b 100644 --- a/src/backend/storage/smgr/md.c +++ b/src/backend/storage/smgr/md.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.96 2003/07/28 00:09:15 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.97 2003/08/04 00:43:25 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -571,12 +571,13 @@ mdnblocks(Relation reln) segno = 0; /* - * Skip through any segments that aren't the last one, to avoid redundant - * seeks on them. We have previously verified that these segments are - * exactly RELSEG_SIZE long, and it's useless to recheck that each time. - * (NOTE: this assumption could only be wrong if another backend has - * truncated the relation. We rely on higher code levels to handle that - * scenario by closing and re-opening the md fd.) + * Skip through any segments that aren't the last one, to avoid + * redundant seeks on them. We have previously verified that these + * segments are exactly RELSEG_SIZE long, and it's useless to recheck + * that each time. (NOTE: this assumption could only be wrong if + * another backend has truncated the relation. We rely on higher code + * levels to handle that scenario by closing and re-opening the md + * fd.) */ while (v->mdfd_chain != (MdfdVec *) NULL) { |