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This patch fixes a regression caused by my recent changes to heap

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tuple header.  The fix is based on the thought that HEAP_MOVED_IN is
not needed any more as soon as HEAP_XMIN_COMMITTED has been set.  So
in tqual.c and vacuum.c the HEAP_MOVED bits are cleared when
HEAP_XMIN_COMMITTED is set.

Vacuum robustness is enhanced by rearranging ifs, so that we have a
chance to elog(ERROR, ...) before an assertion fails.

A new regression test is included.

Manfred Koizar
This commit is contained in:
Bruce Momjian 2002-07-20 04:57:13 +00:00
parent cdf4b9aff2
commit e77054e029
4 changed files with 47 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
src/backend/commands/vacuum.c
View File

@ -13,7 +13,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.230 2002/06/20 20:29:27 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.231 2002/07/20 04:57:13 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -1533,8 +1533,6 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
if (!(tuple.t_data->t_infomask & HEAP_XMIN_COMMITTED))
{
if (HeapTupleHeaderGetXvac(tuple.t_data) != myXID)
elog(ERROR, "Invalid XVAC in tuple header");
if (tuple.t_data->t_infomask & HEAP_MOVED_IN)
elog(ERROR, "HEAP_MOVED_IN was not expected");
@ -1545,6 +1543,8 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
*/
if (tuple.t_data->t_infomask & HEAP_MOVED_OFF)
{
if (HeapTupleHeaderGetXvac(tuple.t_data) != myXID)
elog(ERROR, "Invalid XVAC in tuple header");
if (keep_tuples == 0)
continue;
if (chain_tuple_moved) /* some chains was moved
@ -2008,7 +2008,7 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
/*
* Mark new tuple as moved_in by vacuum and store vacuum XID
* in t_cmin !!!
* in t_cid !!!
*/
newtup.t_data->t_infomask &=
~(HEAP_XMIN_COMMITTED | HEAP_XMIN_INVALID | HEAP_MOVED_OFF);
@ -2034,7 +2034,7 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
/*
* Mark old tuple as moved_off by vacuum and store vacuum XID
* in t_cmin !!!
* in t_cid !!!
*/
tuple.t_data->t_infomask &=
~(HEAP_XMIN_COMMITTED | HEAP_XMIN_INVALID | HEAP_MOVED_IN);
@ -2087,12 +2087,12 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
tuple.t_data = (HeapTupleHeader) PageGetItem(page, itemid);
if (tuple.t_data->t_infomask & HEAP_XMIN_COMMITTED)
continue;
if (HeapTupleHeaderGetXvac(tuple.t_data) != myXID)
elog(ERROR, "Invalid XVAC in tuple header (4)");
if (tuple.t_data->t_infomask & HEAP_MOVED_IN)
elog(ERROR, "HEAP_MOVED_IN was not expected (2)");
if (tuple.t_data->t_infomask & HEAP_MOVED_OFF)
{
if (HeapTupleHeaderGetXvac(tuple.t_data) != myXID)
elog(ERROR, "Invalid XVAC in tuple header (4)");
/* some chains was moved while */
if (chain_tuple_moved)
{ /* cleaning this page */
@ -2116,6 +2116,8 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
keep_tuples--;
}
}
else
elog(ERROR, "HEAP_MOVED_OFF was expected (2)");
}
}
@ -2225,17 +2227,18 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
tuple.t_data = (HeapTupleHeader) PageGetItem(page, itemid);
if (!(tuple.t_data->t_infomask & HEAP_XMIN_COMMITTED))
{
if (!(tuple.t_data->t_infomask & HEAP_MOVED))
elog(ERROR, "HEAP_MOVED_OFF/HEAP_MOVED_IN was expected");
if (HeapTupleHeaderGetXvac(tuple.t_data) != myXID)
elog(ERROR, "Invalid XVAC in tuple header (2)");
if (tuple.t_data->t_infomask & HEAP_MOVED_IN)
{
tuple.t_data->t_infomask |= HEAP_XMIN_COMMITTED;
tuple.t_data->t_infomask &= ~HEAP_MOVED;
num_tuples++;
}
else if (tuple.t_data->t_infomask & HEAP_MOVED_OFF)
tuple.t_data->t_infomask |= HEAP_XMIN_INVALID;
else
elog(ERROR, "HEAP_MOVED_OFF/HEAP_MOVED_IN was expected");
tuple.t_data->t_infomask |= HEAP_XMIN_INVALID;
}
}
LockBuffer(buf, BUFFER_LOCK_UNLOCK);
@ -2304,15 +2307,15 @@ repair_frag(VRelStats *vacrelstats, Relation onerel,
if (!(tuple.t_data->t_infomask & HEAP_XMIN_COMMITTED))
{
if (HeapTupleHeaderGetXvac(tuple.t_data) != myXID)
elog(ERROR, "Invalid XVAC in tuple header (3)");
if (tuple.t_data->t_infomask & HEAP_MOVED_OFF)
{
if (HeapTupleHeaderGetXvac(tuple.t_data) != myXID)
elog(ERROR, "Invalid XVAC in tuple header (3)");
itemid->lp_flags &= ~LP_USED;
num_tuples++;
}
else
elog(ERROR, "HEAP_MOVED_OFF was expected (2)");
elog(ERROR, "HEAP_MOVED_OFF was expected (3)");
}
}

29
src/backend/utils/time/tqual.c
View File

@ -16,7 +16,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/time/tqual.c,v 1.56 2002/06/20 20:29:41 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/time/tqual.c,v 1.57 2002/07/20 04:57:13 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -92,7 +92,10 @@ HeapTupleSatisfiesItself(HeapTupleHeader tuple)
if (TransactionIdIsInProgress(HeapTupleHeaderGetXvac(tuple)))
return false;
if (TransactionIdDidCommit(HeapTupleHeaderGetXvac(tuple)))
{
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
else
{
tuple->t_infomask |= HEAP_XMIN_INVALID;
@ -219,6 +222,7 @@ HeapTupleSatisfiesNow(HeapTupleHeader tuple)
return false;
}
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
}
else if (tuple->t_infomask & HEAP_MOVED_IN)
@ -228,7 +232,10 @@ HeapTupleSatisfiesNow(HeapTupleHeader tuple)
if (TransactionIdIsInProgress(HeapTupleHeaderGetXvac(tuple)))
return false;
if (TransactionIdDidCommit(HeapTupleHeaderGetXvac(tuple)))
{
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
else
{
tuple->t_infomask |= HEAP_XMIN_INVALID;
@ -336,6 +343,7 @@ HeapTupleSatisfiesToast(HeapTupleHeader tuple)
return false;
}
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
}
else if (tuple->t_infomask & HEAP_MOVED_IN)
@ -345,7 +353,10 @@ HeapTupleSatisfiesToast(HeapTupleHeader tuple)
if (TransactionIdIsInProgress(HeapTupleHeaderGetXvac(tuple)))
return false;
if (TransactionIdDidCommit(HeapTupleHeaderGetXvac(tuple)))
{
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
else
{
tuple->t_infomask |= HEAP_XMIN_INVALID;
@ -389,6 +400,7 @@ HeapTupleSatisfiesUpdate(HeapTuple htuple, CommandId curcid)
return HeapTupleInvisible;
}
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
}
else if (tuple->t_infomask & HEAP_MOVED_IN)
@ -398,7 +410,10 @@ HeapTupleSatisfiesUpdate(HeapTuple htuple, CommandId curcid)
if (TransactionIdIsInProgress(HeapTupleHeaderGetXvac(tuple)))
return HeapTupleInvisible;
if (TransactionIdDidCommit(HeapTupleHeaderGetXvac(tuple)))
{
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
else
{
tuple->t_infomask |= HEAP_XMIN_INVALID;
@ -520,6 +535,7 @@ HeapTupleSatisfiesDirty(HeapTupleHeader tuple)
return false;
}
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
}
else if (tuple->t_infomask & HEAP_MOVED_IN)
@ -529,7 +545,10 @@ HeapTupleSatisfiesDirty(HeapTupleHeader tuple)
if (TransactionIdIsInProgress(HeapTupleHeaderGetXvac(tuple)))
return false;
if (TransactionIdDidCommit(HeapTupleHeaderGetXvac(tuple)))
{
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
else
{
tuple->t_infomask |= HEAP_XMIN_INVALID;
@ -651,6 +670,7 @@ HeapTupleSatisfiesSnapshot(HeapTupleHeader tuple, Snapshot snapshot)
return false;
}
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
}
else if (tuple->t_infomask & HEAP_MOVED_IN)
@ -660,7 +680,10 @@ HeapTupleSatisfiesSnapshot(HeapTupleHeader tuple, Snapshot snapshot)
if (TransactionIdIsInProgress(HeapTupleHeaderGetXvac(tuple)))
return false;
if (TransactionIdDidCommit(HeapTupleHeaderGetXvac(tuple)))
{
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
else
{
tuple->t_infomask |= HEAP_XMIN_INVALID;
@ -809,6 +832,7 @@ HeapTupleSatisfiesVacuum(HeapTupleHeader tuple, TransactionId OldestXmin)
return HEAPTUPLE_DEAD;
}
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
else if (tuple->t_infomask & HEAP_MOVED_IN)
{
@ -817,7 +841,10 @@ HeapTupleSatisfiesVacuum(HeapTupleHeader tuple, TransactionId OldestXmin)
if (TransactionIdIsInProgress(HeapTupleHeaderGetXvac(tuple)))
return HEAPTUPLE_INSERT_IN_PROGRESS;
if (TransactionIdDidCommit(HeapTupleHeaderGetXvac(tuple)))
{
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
else
{
tuple->t_infomask |= HEAP_XMIN_INVALID;

2
src/test/regress/parallel_schedule
View File

@ -38,7 +38,7 @@ test: copy
# ----------
# The third group of parallel test
# ----------
test: constraints triggers create_misc create_aggregate create_operator create_index inherit
test: constraints triggers create_misc create_aggregate create_operator create_index inherit vacuum
# Depends on the above
test: create_view

3
src/test/regress/serial_schedule
View File

@ -1,4 +1,4 @@
# $Header: /cvsroot/pgsql/src/test/regress/serial_schedule,v 1.11 2002/07/18 04:43:51 momjian Exp $
# $Header: /cvsroot/pgsql/src/test/regress/serial_schedule,v 1.12 2002/07/20 04:57:13 momjian Exp $
# This should probably be in an order similar to parallel_schedule.
test: boolean
test: char
@ -50,6 +50,7 @@ test: create_aggregate
test: create_operator
test: create_index
test: inherit
test: vacuum
test: create_view
test: sanity_check
test: errors