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Code review for HeapTupleHeader changes. Add version number to page headers

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(overlaying low byte of page size) and add HEAP_HASOID bit to t_infomask,
per earlier discussion.  Simplify scheme for overlaying fields in tuple
header (no need for cmax to live in more than one place).  Don't try to
clear infomask status bits in tqual.c --- not safe to do it there.  Don't
try to force output table of a SELECT INTO to have OIDs, either.  Get rid
of unnecessarily complex three-state scheme for TupleDesc.tdhasoids, which
has already caused one recent failure.  Improve documentation.
This commit is contained in:
Tom Lane
2002-09-02 01:05:06 +00:00
parent fcd34f9f7f
commit c7a165adc6
49 changed files with 513 additions and 561 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/backend/utils/adt/lockfuncs.c
View File

@@ -6,7 +6,7 @@
* Copyright (c) 2002, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/lockfuncs.c,v 1.5 2002/08/31 17:14:28 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/lockfuncs.c,v 1.6 2002/09/02 01:05:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -50,7 +50,7 @@ pg_lock_status(PG_FUNCTION_ARGS)
/* build tupdesc for result tuples */
/* this had better match pg_locks view in initdb.sh */
tupdesc = CreateTemplateTupleDesc(6, WITHOUTOID);
tupdesc = CreateTemplateTupleDesc(6, false);
TupleDescInitEntry(tupdesc, (AttrNumber) 1, "relation",
OIDOID, -1, 0, false);
TupleDescInitEntry(tupdesc, (AttrNumber) 2, "database",

10
src/backend/utils/adt/regproc.c
View File

@@ -13,7 +13,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/regproc.c,v 1.73 2002/08/22 00:01:43 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/regproc.c,v 1.74 2002/09/02 01:05:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -110,7 +110,6 @@ regprocin(PG_FUNCTION_ARGS)
while (HeapTupleIsValid(tuple = systable_getnext(sysscan)))
{
AssertTupleDescHasOid(hdesc->rd_att);
result = (RegProcedure) HeapTupleGetOid(tuple);
if (++matches > 1)
break;
@@ -425,7 +424,6 @@ regoperin(PG_FUNCTION_ARGS)
while (HeapTupleIsValid(tuple = systable_getnext(sysscan)))
{
AssertTupleDescHasOid(hdesc->rd_att);
result = HeapTupleGetOid(tuple);
if (++matches > 1)
break;
@@ -756,10 +754,7 @@ regclassin(PG_FUNCTION_ARGS)
SnapshotNow, 1, skey);
if (HeapTupleIsValid(tuple = systable_getnext(sysscan)))
{
AssertTupleDescHasOid(hdesc->rd_att);
result = HeapTupleGetOid(tuple);
}
else
elog(ERROR, "No class with name %s", class_name_or_oid);
@@ -912,10 +907,7 @@ regtypein(PG_FUNCTION_ARGS)
SnapshotNow, 1, skey);
if (HeapTupleIsValid(tuple = systable_getnext(sysscan)))
{
AssertTupleDescHasOid(hdesc->rd_att);
result = HeapTupleGetOid(tuple);
}
else
elog(ERROR, "No type with name %s", typ_name_or_oid);

3
src/backend/utils/adt/sets.c
View File

@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/Attic/sets.c,v 1.52 2002/08/27 03:56:35 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/Attic/sets.c,v 1.53 2002/09/02 01:05:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -116,7 +116,6 @@ SetDefine(char *querystr, Oid elemType)
simple_heap_update(procrel, &newtup->t_self, newtup);
AssertTupleDescHasOid(procrel->rd_att);
setoid = HeapTupleGetOid(newtup);
CatalogUpdateIndexes(procrel, newtup);

6
src/backend/utils/cache/catcache.c vendored
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/catcache.c,v 1.97 2002/07/20 05:16:58 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/cache/catcache.c,v 1.98 2002/09/02 01:05:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -907,7 +907,6 @@ CatalogCacheInitializeCache(CatCache *cache)
* copy the relcache's tuple descriptor to permanent cache storage
*/
tupdesc = CreateTupleDescCopyConstr(RelationGetDescr(relation));
AssertTupleDescHasOidIsValid(tupdesc);
/*
* get the relation's OID and relisshared flag, too
@@ -1687,10 +1686,7 @@ build_dummy_tuple(CatCache *cache, int nkeys, ScanKey skeys)
ntp = heap_formtuple(tupDesc, values, nulls);
if (tupOid != InvalidOid)
{
AssertTupleDescHasOid(tupDesc);
HeapTupleSetOid(ntp, tupOid);
}
pfree(values);
pfree(nulls);

5
src/backend/utils/cache/inval.c vendored
View File

@@ -74,7 +74,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/inval.c,v 1.53 2002/07/20 05:16:58 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/cache/inval.c,v 1.54 2002/09/02 01:05:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -525,10 +525,7 @@ PrepareForTupleInvalidation(Relation relation, HeapTuple tuple,
tupleRelId = RelationGetRelid(relation);
if (tupleRelId == RelOid_pg_class)
{
AssertTupleDescHasOid(relation->rd_att);
relationId = HeapTupleGetOid(tuple);
}
else if (tupleRelId == RelOid_pg_attribute)
relationId = ((Form_pg_attribute) GETSTRUCT(tuple))->attrelid;
else

19
src/backend/utils/cache/relcache.c vendored
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.172 2002/08/11 21:17:35 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.173 2002/09/02 01:05:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -434,7 +434,8 @@ AllocateRelationDesc(Relation relation, Form_pg_class relp)
relation->rd_rel = relationForm;
/* and allocate attribute tuple form storage */
relation->rd_att = CreateTemplateTupleDesc(relationForm->relnatts, BoolToHasOid(relationForm->relhasoids));
relation->rd_att = CreateTemplateTupleDesc(relationForm->relnatts,
relationForm->relhasoids);
MemoryContextSwitchTo(oldcxt);
@@ -460,6 +461,8 @@ RelationBuildTupleDesc(RelationBuildDescInfo buildinfo,
AttrDefault *attrdef = NULL;
int ndef = 0;
relation->rd_att->tdhasoid = RelationGetForm(relation)->relhasoids;
constr = (TupleConstr *) MemoryContextAlloc(CacheMemoryContext,
sizeof(TupleConstr));
constr->has_not_null = false;
@@ -695,7 +698,6 @@ RelationBuildRuleLock(Relation relation)
rule = (RewriteRule *) MemoryContextAlloc(rulescxt,
sizeof(RewriteRule));
AssertTupleDescHasOid(rewrite_tupdesc);
rule->ruleId = HeapTupleGetOid(rewrite_tuple);
rule->event = rewrite_form->ev_type - '0';
@@ -871,7 +873,6 @@ RelationBuildDesc(RelationBuildDescInfo buildinfo,
* initialize the tuple descriptor (relation->rd_att).
*/
RelationBuildTupleDesc(buildinfo, relation);
RelationGetDescr(relation)->tdhasoid = BoolToHasOid(RelationGetForm(relation)->relhasoids);
/*
* Fetch rules and triggers that affect this relation
@@ -1405,7 +1406,8 @@ formrdesc(const char *relationName,
* right because it will never be replaced. The input values must be
* correctly defined by macros in src/include/catalog/ headers.
*/
relation->rd_att = CreateTemplateTupleDesc(natts, BoolToHasOid(relation->rd_rel->relhasoids));
relation->rd_att = CreateTemplateTupleDesc(natts,
relation->rd_rel->relhasoids);
/*
* initialize tuple desc info
@@ -2101,7 +2103,7 @@ RelationBuildLocalRelation(const char *relname,
rel->rd_rel->relnamespace = relnamespace;
rel->rd_rel->relkind = RELKIND_UNCATALOGED;
rel->rd_rel->relhasoids = (rel->rd_att->tdhasoid == WITHOID);
rel->rd_rel->relhasoids = rel->rd_att->tdhasoid;
rel->rd_rel->relnatts = natts;
rel->rd_rel->reltype = InvalidOid;
@@ -2304,7 +2306,7 @@ RelationCacheInitializePhase2(void)
*/
Assert(relation->rd_rel != NULL);
memcpy((char *) relation->rd_rel, (char *) relp, CLASS_TUPLE_SIZE);
relation->rd_att->tdhasoid = BoolToHasOid(relp->relhasoids);
relation->rd_att->tdhasoid = relp->relhasoids;
ReleaseSysCache(htup);
}
@@ -2766,7 +2768,8 @@ load_relcache_init_file(void)
rel->rd_rel = relform;
/* initialize attribute tuple forms */
rel->rd_att = CreateTemplateTupleDesc(relform->relnatts, BoolToHasOid(relform->relhasoids));
rel->rd_att = CreateTemplateTupleDesc(relform->relnatts,
relform->relhasoids);
/* next read all the attribute tuple form data entries */
for (i = 0; i < relform->relnatts; i++)

3
src/backend/utils/init/postinit.c
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.112 2002/08/30 22:18:06 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.113 2002/09/02 01:05:06 tgl Exp $
*
*
*-------------------------------------------------------------------------
@@ -98,7 +98,6 @@ ReverifyMyDatabase(const char *name)
pgdbscan = heap_beginscan(pgdbrel, SnapshotNow, 1, &key);
tup = heap_getnext(pgdbscan, ForwardScanDirection);
AssertTupleDescHasOid(pgdbrel->rd_att);
if (!HeapTupleIsValid(tup) ||
HeapTupleGetOid(tup) != MyDatabaseId)
{

8
src/backend/utils/misc/guc.c
View File

@@ -5,7 +5,7 @@
* command, configuration file, and command line options.
* See src/backend/utils/misc/README for more information.
*
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.90 2002/09/01 23:26:06 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.91 2002/09/02 01:05:06 tgl Exp $
*
* Copyright 2000 by PostgreSQL Global Development Group
* Written by Peter Eisentraut <peter_e@gmx.net>.
@@ -2288,7 +2288,7 @@ ShowGUCConfigOption(const char *name)
value = GetConfigOptionByName(name, &varname);
/* need a tuple descriptor representing a single TEXT column */
tupdesc = CreateTemplateTupleDesc(1, WITHOUTOID);
tupdesc = CreateTemplateTupleDesc(1, false);
TupleDescInitEntry(tupdesc, (AttrNumber) 1, (char *) varname,
TEXTOID, -1, 0, false);
@@ -2314,7 +2314,7 @@ ShowAllGUCConfig(void)
char *values[2];
/* need a tuple descriptor representing two TEXT columns */
tupdesc = CreateTemplateTupleDesc(2, WITHOUTOID);
tupdesc = CreateTemplateTupleDesc(2, false);
TupleDescInitEntry(tupdesc, (AttrNumber) 1, "name",
TEXTOID, -1, 0, false);
TupleDescInitEntry(tupdesc, (AttrNumber) 2, "setting",
@@ -2445,7 +2445,7 @@ show_all_settings(PG_FUNCTION_ARGS)
oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
/* need a tuple descriptor representing two TEXT columns */
tupdesc = CreateTemplateTupleDesc(2, WITHOUTOID);
tupdesc = CreateTemplateTupleDesc(2, false);
TupleDescInitEntry(tupdesc, (AttrNumber) 1, "name",
TEXTOID, -1, 0, false);
TupleDescInitEntry(tupdesc, (AttrNumber) 2, "setting",

30
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 1.58 2002/07/30 16:08:33 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/time/tqual.c,v 1.59 2002/09/02 01:05:06 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -83,7 +83,6 @@ HeapTupleSatisfiesItself(HeapTupleHeader tuple)
return false;
}
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
}
else if (tuple->t_infomask & HEAP_MOVED_IN)
@@ -93,10 +92,7 @@ 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;
@@ -223,7 +219,6 @@ HeapTupleSatisfiesNow(HeapTupleHeader tuple)
return false;
}
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
}
else if (tuple->t_infomask & HEAP_MOVED_IN)
@@ -233,10 +228,7 @@ 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;
@@ -344,7 +336,6 @@ HeapTupleSatisfiesToast(HeapTupleHeader tuple)
return false;
}
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
}
else if (tuple->t_infomask & HEAP_MOVED_IN)
@@ -354,10 +345,7 @@ 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;
@@ -401,7 +389,6 @@ 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)
@@ -411,10 +398,7 @@ 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;
@@ -536,7 +520,6 @@ HeapTupleSatisfiesDirty(HeapTupleHeader tuple)
return false;
}
tuple->t_infomask |= HEAP_XMIN_COMMITTED;
tuple->t_infomask &= ~HEAP_MOVED;
}
}
else if (tuple->t_infomask & HEAP_MOVED_IN)
@@ -546,10 +529,7 @@ 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;
@@ -671,7 +651,6 @@ 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)
@@ -681,10 +660,7 @@ 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;
@@ -833,7 +809,6 @@ 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)
{
@@ -842,10 +817,7 @@ 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;