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Commitcb253de

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Don't mess with HEAP_XMAX_INVALID in heaptuple.c routines; there is
no reason to worry about the tuple commit status bits until the tupleis inserted in a relation by heapam.c. Also, improve comments forheap_addheader().
1 parent0b1b377 commitcb253de

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1 file changed

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‎src/backend/access/common/heaptuple.c

Lines changed: 14 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -9,7 +9,7 @@
99
*
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*
1111
* IDENTIFICATION
12-
* $Header: /cvsroot/pgsql/src/backend/access/common/heaptuple.c,v 1.82 2002/09/04 20:31:08momjian Exp $
12+
* $Header: /cvsroot/pgsql/src/backend/access/common/heaptuple.c,v 1.83 2002/09/27 15:04:08tgl Exp $
1313
*
1414
* NOTES
1515
* The old interface functions have been converted to macros
@@ -617,18 +617,16 @@ heap_formtuple(TupleDesc tupleDescriptor,
617617
td->t_natts=numberOfAttributes;
618618
td->t_hoff=hoff;
619619

620+
if (tupleDescriptor->tdhasoid)/* else leave infomask = 0 */
621+
td->t_infomask=HEAP_HASOID;
622+
620623
DataFill((char*)td+hoff,
621624
tupleDescriptor,
622625
value,
623626
nulls,
624627
&td->t_infomask,
625628
(hasnull ?td->t_bits :NULL));
626629

627-
if (tupleDescriptor->tdhasoid)
628-
td->t_infomask |=HEAP_HASOID;
629-
630-
td->t_infomask |=HEAP_XMAX_INVALID;
631-
632630
returntuple;
633631
}
634632

@@ -736,8 +734,12 @@ heap_freetuple(HeapTuple htup)
736734
*
737735
* This routine forms a HeapTuple by copying the given structure (tuple
738736
* data) and adding a generic header. Note that the tuple data is
739-
* presumed to contain no null fields.It is typically only useful
740-
* for null-free system tables.
737+
* presumed to contain no null fields and no varlena fields.
738+
*
739+
* This routine is really only useful for certain system tables that are
740+
* known to be fixed-width and null-free. It is used in some places for
741+
* pg_class, but that is a gross hack (it only works because relacl can
742+
* be omitted from the tuple entirely in those places).
741743
* ----------------
742744
*/
743745
HeapTuple
@@ -770,9 +772,11 @@ heap_addheader(int natts,/* max domain index */
770772

771773
MemSet((char*)td,0,hoff);
772774

773-
td->t_hoff=hoff;
774775
td->t_natts=natts;
775-
td->t_infomask=withoid ? (HEAP_XMAX_INVALID |HEAP_HASOID) :HEAP_XMAX_INVALID;
776+
td->t_hoff=hoff;
777+
778+
if (withoid)/* else leave infomask = 0 */
779+
td->t_infomask=HEAP_HASOID;
776780

777781
memcpy((char*)td+hoff,structure,structlen);
778782

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