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heap_fetch requires buffer pointer, must be released; heap_getnext

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no longer returns buffer pointer, can be gotten from scan;
	descriptor; bootstrap can create multi-key indexes;
pg_procname index now is multi-key index; oidint2, oidint4, oidname
are gone (must be removed from regression tests); use System Cache
rather than sequential scan in many places; heap_modifytuple no
longer takes buffer parameter; remove unused buffer parameter in
a few other functions; oid8 is not index-able; remove some use of
single-character variable names; cleanup Buffer variables usage
and scan descriptor looping; cleaned up allocation and freeing of
tuples; 18k lines of diff;
This commit is contained in:
Bruce Momjian
1998-08-19 02:04:17 +00:00
parent 31de2c9461
commit 7971539020
123 changed files with 2139 additions and 3134 deletions
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22
src/backend/executor/nodeMaterial.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/nodeMaterial.c,v 1.14 1998/07/27 19:37:57 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/nodeMaterial.c,v 1.15 1998/08/19 02:02:03 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -59,7 +59,6 @@ ExecMaterial(Material *node)
HeapScanDesc currentScanDesc;
HeapTuple heapTuple;
TupleTableSlot *slot;
Buffer buffer;
/* ----------------
* get state info from node
@ -162,10 +161,7 @@ ExecMaterial(Material *node)
*/
currentScanDesc = matstate->csstate.css_currentScanDesc;
heapTuple = heap_getnext(currentScanDesc, /* scan desc */
ScanDirectionIsBackward(dir),
/* bkwd flag */
&buffer); /* return: buffer */
heapTuple = heap_getnext(currentScanDesc, ScanDirectionIsBackward(dir));
/* ----------------
* put the tuple into the scan tuple slot and return the slot.
@ -177,7 +173,7 @@ ExecMaterial(Material *node)
return ExecStoreTuple(heapTuple, /* tuple to store */
slot, /* slot to store in */
buffer, /* buffer for this tuple */
currentScanDesc->rs_cbuf, /* buffer for this tuple */
false); /* don't pfree this pointer */
}
@ -370,7 +366,7 @@ List /* nothing of interest */
ExecMaterialMarkPos(Material node)
{
MaterialState matstate;
HeapScanDesc sdesc;
HeapScanDesc scan;
/* ----------------
* if we haven't materialized yet, just return NIL.
@ -386,8 +382,8 @@ ExecMaterialMarkPos(Material node)
* they will never return positions for all I know -cim 10/16/89
* ----------------
*/
sdesc = get_css_currentScanDesc((CommonScanState) matstate);
heap_markpos(sdesc);
scan = get_css_currentScanDesc((CommonScanState) matstate);
heap_markpos(scan);
return NIL;
}
@ -400,7 +396,7 @@ void
ExecMaterialRestrPos(Material node)
{
MaterialState matstate;
HeapScanDesc sdesc;
HeapScanDesc scan;
/* ----------------
* if we haven't materialized yet, just return.
@ -414,8 +410,8 @@ ExecMaterialRestrPos(Material node)
* restore the scan to the previously marked position
* ----------------
*/
sdesc = get_css_currentScanDesc((CommonScanState) matstate);
heap_restrpos(sdesc);
scan = get_css_currentScanDesc((CommonScanState) matstate);
heap_restrpos(scan);
}
#endif