diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-09-12 22:10:26 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-09-12 22:10:26 +0000 |
| commit | 6889303531187f7867a5dfad5f5b5ba103f7cdd6 (patch) | |
| tree | ea862682de0eb2dad6cba22fb7d0978d70fd54b2 /src/backend/commands/sequence.c | |
| parent | eb0a7735ba1ede6a35b80d73f6c371a8b1220552 (diff) | |
| download | postgresql-6889303531187f7867a5dfad5f5b5ba103f7cdd6.tar.gz postgresql-6889303531187f7867a5dfad5f5b5ba103f7cdd6.zip | |
Redefine the lp_flags field of item pointers as having four states, rather
than two independent bits (one of which was never used in heap pages anyway,
or at least hadn't been in a very long time). This gives us flexibility to
add the HOT notions of redirected and dead item pointers without requiring
anything so klugy as magic values of lp_off and lp_len. The state values
are chosen so that for the states currently in use (pre-HOT) there is no
change in the physical representation.
Diffstat (limited to 'src/backend/commands/sequence.c')
| -rw-r--r-- | src/backend/commands/sequence.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/backend/commands/sequence.c b/src/backend/commands/sequence.c index cb2a1380caf..73024a7e703 100644 --- a/src/backend/commands/sequence.c +++ b/src/backend/commands/sequence.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/commands/sequence.c,v 1.144 2007/09/05 18:10:47 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/commands/sequence.c,v 1.145 2007/09/12 22:10:26 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -936,7 +936,7 @@ read_info(SeqTable elm, Relation rel, Buffer *buf) RelationGetRelationName(rel), sm->magic); lp = PageGetItemId(page, FirstOffsetNumber); - Assert(ItemIdIsUsed(lp)); + Assert(ItemIdIsNormal(lp)); tuple.t_data = (HeapTupleHeader) PageGetItem((Page) page, lp); seq = (Form_pg_sequence) GETSTRUCT(&tuple); @@ -1281,7 +1281,7 @@ seq_redo(XLogRecPtr lsn, XLogRecord *record) itemsz = record->xl_len - sizeof(xl_seq_rec); itemsz = MAXALIGN(itemsz); if (PageAddItem(page, (Item) item, itemsz, - FirstOffsetNumber, LP_USED) == InvalidOffsetNumber) + FirstOffsetNumber, false) == InvalidOffsetNumber) elog(PANIC, "seq_redo: failed to add item to page"); PageSetLSN(page, lsn); |