diff options
| author | Robert Haas | 2022-09-28 13:45:27 +0000 |
|---|---|---|
| committer | Robert Haas | 2022-09-28 13:55:28 +0000 |
| commit | a448e49bcbe40fb72e1ed85af910dd216d45bad8 (patch) | |
| tree | 2815aed4f5e89bdea91cdd35ec89facaa846e438 /src/backend/storage/smgr/md.c | |
| parent | 6af082723277eeca74f2da65e7759666bf7c7f9c (diff) | |
Revert 56-bit relfilenode change and follow-up commits.
There are still some alignment-related failures in the buildfarm,
which might or might not be able to be fixed quickly, but I've also
just realized that it increased the size of many WAL records by 4 bytes
because a block reference contains a RelFileLocator. The effect of that
hasn't been studied or discussed, so revert for now.
Diffstat (limited to 'src/backend/storage/smgr/md.c')
| -rw-r--r-- | src/backend/storage/smgr/md.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/src/backend/storage/smgr/md.c b/src/backend/storage/smgr/md.c index bed47f07d73..a515bb36ac1 100644 --- a/src/backend/storage/smgr/md.c +++ b/src/backend/storage/smgr/md.c @@ -257,13 +257,6 @@ mdcreate(SMgrRelation reln, ForkNumber forknum, bool isRedo) * next checkpoint, we prevent reassignment of the relfilenumber until it's * safe, because relfilenumber assignment skips over any existing file. * - * XXX. Although all of this was true when relfilenumbers were 32 bits wide, - * they are now 56 bits wide and do not wrap around, so in the future we can - * change the code to immediately unlink the first segment of the relation - * along with all the others. We still do reuse relfilenumbers when createdb() - * is performed using the file-copy method or during movedb(), but the scenario - * described above can only happen when creating a new relation. - * * We do not need to go through this dance for temp relations, though, because * we never make WAL entries for temp rels, and so a temp rel poses no threat * to the health of a regular rel that has taken over its relfilenumber. |