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Replace TupleTableSlot convention for whole-row variables and function

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results with tuples as ordinary varlena Datums.  This commit does not
in itself do much for us, except eliminate the horrid memory leak
associated with evaluation of whole-row variables.  However, it lays the
groundwork for allowing composite types as table columns, and perhaps
some other useful features as well.  Per my proposal of a few days ago.
This commit is contained in:
Tom Lane
2004-04-01 21:28:47 +00:00
parent 8590a62b75
commit 375369acd1
60 changed files with 1779 additions and 1733 deletions
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7
src/include/access/heapam.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/heapam.h,v 1.87 2004/03/11 01:47:41 ishii Exp $
* $PostgreSQL: pgsql/src/include/access/heapam.h,v 1.88 2004/04/01 21:28:45 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -111,11 +111,12 @@ extern Datum fastgetattr(HeapTuple tup, int attnum, TupleDesc tupleDesc,
fastgetattr((tup), (attnum), (tupleDesc), (isnull)) \
) \
: \
heap_getsysattr((tup), (attnum), (isnull)) \
heap_getsysattr((tup), (attnum), (tupleDesc), (isnull)) \
) \
)
extern Datum heap_getsysattr(HeapTuple tup, int attnum, bool *isnull);
extern Datum heap_getsysattr(HeapTuple tup, int attnum, TupleDesc tupleDesc,
bool *isnull);
/* ----------------