diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/storage/smgr/md.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/backend/storage/smgr/md.c b/src/backend/storage/smgr/md.c index 25051a9799c..f8f82048f34 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 1.92 2002/08/06 02:36:34 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.93 2002/11/12 15:26:30 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -434,8 +434,12 @@ mdread(Relation reln, BlockNumber blocknum, char *buffer) if ((nbytes = FileRead(v->mdfd_vfd, buffer, BLCKSZ)) != BLCKSZ) { /* - * If we are at EOF, return zeroes without complaining. (XXX Is - * this still necessary/a good idea??) + * If we are at or past EOF, return zeroes without complaining. + * Also substitute zeroes if we found a partial block at EOF. + * + * XXX this is really ugly, bad design. However the current + * implementation of hash indexes requires it, because hash index + * pages are initialized out-of-order. */ if (nbytes == 0 || (nbytes > 0 && mdnblocks(reln) == blocknum)) |