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New HeapTuple structure/interface.

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This commit is contained in:
Vadim B. Mikheev
1998-11-27 19:33:35 +00:00
parent 4d7188039a
commit 2435c7d501
8 changed files with 119 additions and 106 deletions
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54
src/include/access/valid.h
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@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: valid.h,v 1.15 1998/09/01 04:34:33 momjian Exp $
* $Id: valid.h,v 1.16 1998/11/27 19:33:32 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -109,48 +109,40 @@ do \
* with joey's expensive function work.
* ----------------
*/
#define HeapTupleSatisfies(itemId, \
#define HeapTupleSatisfies(tuple, \
relation, \
buffer, \
disk_page, \
seeself, \
nKeys, \
key, \
result) \
key) \
do \
{ \
/* We use underscores to protect the variable passed in as parameters */ \
HeapTuple _tuple; \
bool _res; \
\
if (!ItemIdIsUsed(itemId)) \
(result) = (HeapTuple) NULL; \
if ((key) != NULL) \
HeapKeyTest(tuple, RelationGetDescr(relation), \
(nKeys), (key), _res); \
else \
_res = TRUE; \
\
if (_res) \
{ \
if ((relation)->rd_rel->relkind != RELKIND_UNCATALOGED) \
{ \
uint16 _infomask = (tuple)->t_data->t_infomask; \
\
_res = HeapTupleSatisfiesVisibility((tuple), (seeself)); \
if ((tuple)->t_data->t_infomask != _infomask) \
SetBufferCommitInfoNeedsSave(buffer); \
if (!_res) \
(tuple)->t_data = NULL; \
} \
} \
else \
{ \
_tuple = (HeapTuple) PageGetItem((Page) (disk_page), (itemId)); \
\
if ((key) != NULL) \
HeapKeyTest(_tuple, RelationGetDescr(relation), \
(nKeys), (key), _res); \
else \
_res = TRUE; \
\
(result) = (HeapTuple) NULL; \
if (_res) \
{ \
if ((relation)->rd_rel->relkind == RELKIND_UNCATALOGED) \
(result) = _tuple; \
else \
{ \
uint16 _infomask = _tuple->t_infomask; \
\
_res = HeapTupleSatisfiesVisibility(_tuple, (seeself)); \
if (_tuple->t_infomask != _infomask) \
SetBufferCommitInfoNeedsSave(buffer); \
if (_res) \
(result) = _tuple; \
} \
} \
(tuple)->t_data = NULL; \
} \
} while (0)