diff options
Diffstat (limited to 'src/backend/utils/time/tqual.c')
| -rw-r--r-- | src/backend/utils/time/tqual.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/src/backend/utils/time/tqual.c b/src/backend/utils/time/tqual.c index f0536d76118..194959f6ccf 100644 --- a/src/backend/utils/time/tqual.c +++ b/src/backend/utils/time/tqual.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/utils/time/tqual.c,v 1.42 2001/08/26 16:56:00 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/time/tqual.c,v 1.43 2001/10/25 05:49:52 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -324,7 +324,7 @@ HeapTupleSatisfiesUpdate(HeapTuple tuple) { if (th->t_infomask & HEAP_MARKED_FOR_UPDATE) return HeapTupleMayBeUpdated; - return HeapTupleUpdated;/* updated by other */ + return HeapTupleUpdated; /* updated by other */ } if (TransactionIdIsCurrentTransactionId(th->t_xmax)) @@ -374,7 +374,6 @@ HeapTupleSatisfiesDirty(HeapTupleHeader tuple) if (tuple->t_infomask & HEAP_MOVED_OFF) { - /* * HeapTupleSatisfiesDirty is used by unique btree-s and so * may be used while vacuuming. @@ -592,7 +591,7 @@ HeapTupleSatisfiesSnapshot(HeapTupleHeader tuple, Snapshot snapshot) * HeapTupleSatisfiesVacuum - determine tuple status for VACUUM and related * operations * - * OldestXmin is a cutoff XID (obtained from GetOldestXmin()). Tuples + * OldestXmin is a cutoff XID (obtained from GetOldestXmin()). Tuples * deleted by XIDs >= OldestXmin are deemed "recently dead"; they might * still be visible to some open transaction, so we can't remove them, * even if we see that the deleting transaction has committed. @@ -614,9 +613,9 @@ HeapTupleSatisfiesVacuum(HeapTupleHeader tuple, TransactionId OldestXmin) * NOTE: must check TransactionIdIsInProgress (which looks in PROC array) * before TransactionIdDidCommit/TransactionIdDidAbort (which look in * pg_clog). Otherwise we have a race condition where we might decide - * that a just-committed transaction crashed, because none of the tests - * succeed. xact.c is careful to record commit/abort in pg_clog before - * it unsets MyProc->xid in PROC array. + * that a just-committed transaction crashed, because none of the + * tests succeed. xact.c is careful to record commit/abort in pg_clog + * before it unsets MyProc->xid in PROC array. */ if (!(tuple->t_infomask & HEAP_XMIN_COMMITTED)) { @@ -655,8 +654,8 @@ HeapTupleSatisfiesVacuum(HeapTupleHeader tuple, TransactionId OldestXmin) else { /* - * Not in Progress, Not Committed, Not Aborted - - * so it's from crashed process. - vadim 11/26/96 + * Not in Progress, Not Committed, Not Aborted - so it's from + * crashed process. - vadim 11/26/96 */ tuple->t_infomask |= HEAP_XMIN_INVALID; return HEAPTUPLE_DEAD; @@ -666,7 +665,7 @@ HeapTupleSatisfiesVacuum(HeapTupleHeader tuple, TransactionId OldestXmin) } /* - * Okay, the inserter committed, so it was good at some point. Now + * Okay, the inserter committed, so it was good at some point. Now * what about the deleting transaction? */ if (tuple->t_infomask & HEAP_XMAX_INVALID) @@ -686,8 +685,8 @@ HeapTupleSatisfiesVacuum(HeapTupleHeader tuple, TransactionId OldestXmin) else { /* - * Not in Progress, Not Committed, Not Aborted - - * so it's from crashed process. - vadim 06/02/97 + * Not in Progress, Not Committed, Not Aborted - so it's from + * crashed process. - vadim 06/02/97 */ tuple->t_infomask |= HEAP_XMAX_INVALID; return HEAPTUPLE_LIVE; @@ -708,7 +707,10 @@ HeapTupleSatisfiesVacuum(HeapTupleHeader tuple, TransactionId OldestXmin) if (TransactionIdEquals(tuple->t_xmin, tuple->t_xmax)) { - /* inserter also deleted it, so it was never visible to anyone else */ + /* + * inserter also deleted it, so it was never visible to anyone + * else + */ return HEAPTUPLE_DEAD; } |