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Minor cleanup of tableOid-related coding.

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This commit is contained in:
Tom Lane
2000-11-14 21:04:32 +00:00
parent b0d243e420
commit 21e1e6643c
4 changed files with 27 additions and 56 deletions
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58
src/backend/access/common/heaptuple.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/common/heaptuple.c,v 1.65 2000/07/04 02:40:56 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/access/common/heaptuple.c,v 1.66 2000/11/14 21:04:32 tgl Exp $
*
* NOTES
* The old interface functions have been converted to macros
@ -275,38 +275,6 @@ heap_sysattrbyval(AttrNumber attno)
return byval;
}
#ifdef NOT_USED
/* ----------------
* heap_getsysattr
* ----------------
*/
Datum
heap_getsysattr(HeapTuple tup, Buffer b, int attnum)
{
switch (attnum)
{
case TableOidAttributeNumber:
return (Datum) &tup->t_tableoid;
case SelfItemPointerAttributeNumber:
return (Datum) &tup->t_ctid;
case ObjectIdAttributeNumber:
return (Datum) (long) tup->t_oid;
case MinTransactionIdAttributeNumber:
return (Datum) (long) tup->t_xmin;
case MinCommandIdAttributeNumber:
return (Datum) (long) tup->t_cmin;
case MaxTransactionIdAttributeNumber:
return (Datum) (long) tup->t_xmax;
case MaxCommandIdAttributeNumber:
return (Datum) (long) tup->t_cmax;
default:
elog(ERROR, "heap_getsysattr: undefined attnum %d", attnum);
}
return (Datum) NULL;
}
#endif
/* ----------------
* nocachegetattr
*
@ -563,6 +531,9 @@ nocachegetattr(HeapTuple tuple,
* heap_copytuple
*
* returns a copy of an entire tuple
*
* The HeapTuple struct, tuple header, and tuple data are all allocated
* as a single palloc() block.
* ----------------
*/
HeapTuple
@ -576,17 +547,17 @@ heap_copytuple(HeapTuple tuple)
newTuple = (HeapTuple) palloc(HEAPTUPLESIZE + tuple->t_len);
newTuple->t_len = tuple->t_len;
newTuple->t_self = tuple->t_self;
newTuple->t_tableOid = tuple->t_tableOid;
newTuple->t_datamcxt = CurrentMemoryContext;
newTuple->t_data = (HeapTupleHeader) ((char *) newTuple + HEAPTUPLESIZE);
memmove((char *) newTuple->t_data,
(char *) tuple->t_data, tuple->t_len);
memcpy((char *) newTuple->t_data, (char *) tuple->t_data, tuple->t_len);
return newTuple;
}
/* ----------------
* heap_copytuple_with_tuple
*
* returns a copy of an tuple->t_data
* copy a tuple into a caller-supplied HeapTuple management struct
* ----------------
*/
void
@ -600,11 +571,10 @@ heap_copytuple_with_tuple(HeapTuple src, HeapTuple dest)
dest->t_len = src->t_len;
dest->t_self = src->t_self;
dest->t_tableOid = src->t_tableOid;
dest->t_datamcxt = CurrentMemoryContext;
dest->t_data = (HeapTupleHeader) palloc(src->t_len);
memmove((char *) dest->t_data,
(char *) src->t_data, src->t_len);
return;
memcpy((char *) dest->t_data, (char *) src->t_data, src->t_len);
}
#ifdef NOT_USED
@ -705,6 +675,7 @@ heap_formtuple(TupleDesc tupleDescriptor,
tuple->t_len = len;
ItemPointerSetInvalid(&(tuple->t_self));
tuple->t_tableOid = InvalidOid;
td->t_natts = numberOfAttributes;
td->t_hoff = hoff;
@ -805,6 +776,7 @@ heap_modifytuple(HeapTuple tuple,
newTuple->t_data->t_infomask = infomask;
newTuple->t_data->t_natts = numberOfAttributes;
newTuple->t_self = tuple->t_self;
newTuple->t_tableOid = tuple->t_tableOid;
return newTuple;
}
@ -851,17 +823,19 @@ heap_addheader(uint32 natts, /* max domain index */
tuple->t_datamcxt = CurrentMemoryContext;
td = tuple->t_data = (HeapTupleHeader) ((char *) tuple + HEAPTUPLESIZE);
MemSet((char *) td, 0, len);
tuple->t_len = len;
ItemPointerSetInvalid(&(tuple->t_self));
tuple->t_tableOid = InvalidOid;
MemSet((char *) td, 0, len);
td->t_hoff = hoff;
td->t_natts = natts;
td->t_infomask = 0;
td->t_infomask |= HEAP_XMAX_INVALID;
if (structlen > 0)
memmove((char *) td + hoff, structure, (size_t) structlen);
memcpy((char *) td + hoff, structure, (size_t) structlen);
return tuple;
}