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2nd try for the index tuple toast hack. This time as suggested

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by Tom.

Jan
This commit is contained in:
Jan Wieck
2000-07-22 11:18:47 +00:00
parent a5a12887a1
commit f67e79045d
4 changed files with 108 additions and 206 deletions
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51
src/backend/access/heap/heapam.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.81 2000/07/21 11:18:51 wieck Exp $
* $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.82 2000/07/22 11:18:46 wieck Exp $
*
*
* INTERFACE ROUTINES
@ -1274,10 +1274,6 @@ Oid
heap_insert(Relation relation, HeapTuple tup)
{
Buffer buffer;
#ifndef TOAST_INDICES
HeapTupleHeader plaintdata = NULL;
int32 plaintlen = 0;
#endif
/* increment access statistics */
tup->tableOid = relation->rd_id;
@ -1313,11 +1309,7 @@ heap_insert(Relation relation, HeapTuple tup)
*/
if (HeapTupleHasExtended(tup) ||
(MAXALIGN(tup->t_len) > (MaxTupleSize / 4)))
#ifdef TOAST_INDICES
heap_tuple_toast_attrs(relation, tup, NULL);
#else
heap_tuple_toast_attrs(relation, tup, NULL, &plaintdata, &plaintlen);
#endif
#endif
/* Find buffer for this tuple */
@ -1355,20 +1347,6 @@ heap_insert(Relation relation, HeapTuple tup)
if (IsSystemRelationName(RelationGetRelationName(relation)))
RelationMark4RollbackHeapTuple(relation, tup);
#ifndef TOAST_INDICES
if (plaintdata != NULL && tup->t_data != plaintdata)
{
if (tup->t_datamcxt != NULL && (char *) (tup->t_data) !=
((char *) tup + HEAPTUPLESIZE))
{
MemoryContext oldcxt = MemoryContextSwitchTo(tup->t_datamcxt);
pfree(tup->t_data);
MemoryContextSwitchTo(oldcxt);
}
tup->t_data = plaintdata;
tup->t_len = plaintlen;
}
#endif
return tup->t_data->t_oid;
}
@ -1483,11 +1461,7 @@ l1:
* ----------
*/
if (HeapTupleHasExtended(&tp))
#ifdef TOAST_INDICES
heap_tuple_toast_attrs(relation, NULL, &(tp));
#else
heap_tuple_toast_attrs(relation, NULL, &(tp), NULL, NULL);
#endif
#endif
LockBuffer(buffer, BUFFER_LOCK_UNLOCK);
@ -1512,10 +1486,6 @@ heap_update(Relation relation, ItemPointer otid, HeapTuple newtup,
PageHeader dp;
Buffer buffer, newbuf;
int result;
#ifndef TOAST_INDICES
HeapTupleHeader plaintdata = NULL;
int32 plaintlen = 0;
#endif
newtup->tableOid = relation->rd_id;
/* increment access statistics */
@ -1604,11 +1574,7 @@ l2:
if (HeapTupleHasExtended(&oldtup) ||
HeapTupleHasExtended(newtup) ||
(MAXALIGN(newtup->t_len) > (MaxTupleSize / 4)))
#ifdef TOAST_INDICES
heap_tuple_toast_attrs(relation, newtup, &oldtup);
#else
heap_tuple_toast_attrs(relation, newtup, &oldtup, &plaintdata, &plaintlen);
#endif
#endif
/* Find buffer for new tuple */
@ -1671,21 +1637,6 @@ l2:
RelationInvalidateHeapTuple(relation, &oldtup);
RelationMark4RollbackHeapTuple(relation, newtup);
#ifndef TOAST_INDICES
if (plaintdata != NULL && newtup->t_data != plaintdata)
{
if (newtup->t_datamcxt != NULL && (char *) (newtup->t_data) !=
((char *) newtup + HEAPTUPLESIZE))
{
MemoryContext oldcxt = MemoryContextSwitchTo(newtup->t_datamcxt);
pfree(newtup->t_data);
MemoryContextSwitchTo(oldcxt);
}
newtup->t_data = plaintdata;
newtup->t_len = plaintlen;
}
#endif
return HeapTupleMayBeUpdated;
}