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Diffstat (limited to 'src/backend/access/nbtree/nbtree.c')
-rw-r--r--src/backend/access/nbtree/nbtree.c104
1 files changed, 71 insertions, 33 deletions
diff --git a/src/backend/access/nbtree/nbtree.c b/src/backend/access/nbtree/nbtree.c
index 58469932e99..ccd5a265d31 100644
--- a/src/backend/access/nbtree/nbtree.c
+++ b/src/backend/access/nbtree/nbtree.c
@@ -12,7 +12,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtree.c,v 1.55 2000/05/31 00:28:14 petere Exp $
+ * $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtree.c,v 1.56 2000/06/13 07:34:38 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -42,17 +42,20 @@ static void _bt_restscan(IndexScanDesc scan);
* since the index won't be visible until this transaction commits
* and since building is guaranteed to be single-threaded.
*/
-void
-btbuild(Relation heap,
- Relation index,
- int natts,
- AttrNumber *attnum,
- IndexStrategy istrat,
- uint16 pcount,
- Datum *params,
- FuncIndexInfo *finfo,
- PredInfo *predInfo)
+Datum
+btbuild(PG_FUNCTION_ARGS)
{
+ Relation heap = (Relation) PG_GETARG_POINTER(0);
+ Relation index = (Relation) PG_GETARG_POINTER(1);
+ int32 natts = PG_GETARG_INT32(2);
+ AttrNumber *attnum = (AttrNumber *) PG_GETARG_POINTER(3);
+#ifdef NOT_USED
+ IndexStrategy istrat = (IndexStrategy) PG_GETARG_POINTER(4);
+ uint16 pcount = PG_GETARG_UINT16(5);
+ Datum *params = (Datum *) PG_GETARG_POINTER(6);
+#endif
+ FuncIndexInfo *finfo = (FuncIndexInfo *) PG_GETARG_POINTER(7);
+ PredInfo *predInfo = (PredInfo *) PG_GETARG_POINTER(8);
HeapScanDesc hscan;
HeapTuple htup;
IndexTuple itup;
@@ -332,6 +335,8 @@ btbuild(Relation heap,
/* all done */
BuildingBtree = false;
+
+ PG_RETURN_POINTER(NULL); /* no real return value */
}
/*
@@ -341,12 +346,17 @@ btbuild(Relation heap,
* new tuple, put it there, set its unique OID as appropriate, and
* return an InsertIndexResult to the caller.
*/
-InsertIndexResult
-btinsert(Relation rel, Datum *datum, char *nulls, ItemPointer ht_ctid, Relation heapRel)
+Datum
+btinsert(PG_FUNCTION_ARGS)
{
+ Relation rel = (Relation) PG_GETARG_POINTER(0);
+ Datum *datum = (Datum *) PG_GETARG_POINTER(1);
+ char *nulls = (char *) PG_GETARG_POINTER(2);
+ ItemPointer ht_ctid = (ItemPointer) PG_GETARG_POINTER(3);
+ Relation heapRel = (Relation) PG_GETARG_POINTER(4);
+ InsertIndexResult res;
BTItem btitem;
IndexTuple itup;
- InsertIndexResult res;
/* generate an index tuple */
itup = index_formtuple(RelationGetDescr(rel), datum, nulls);
@@ -355,7 +365,8 @@ btinsert(Relation rel, Datum *datum, char *nulls, ItemPointer ht_ctid, Relation
/*
* See comments in btbuild.
*
- * if (itup->t_info & INDEX_NULL_MASK) return (InsertIndexResult) NULL;
+ * if (itup->t_info & INDEX_NULL_MASK)
+ * PG_RETURN_POINTER((InsertIndexResult) NULL);
*/
btitem = _bt_formitem(itup);
@@ -366,15 +377,17 @@ btinsert(Relation rel, Datum *datum, char *nulls, ItemPointer ht_ctid, Relation
pfree(btitem);
pfree(itup);
- return res;
+ PG_RETURN_POINTER(res);
}
/*
* btgettuple() -- Get the next tuple in the scan.
*/
-char *
-btgettuple(IndexScanDesc scan, ScanDirection dir)
+Datum
+btgettuple(PG_FUNCTION_ARGS)
{
+ IndexScanDesc scan = (IndexScanDesc) PG_GETARG_POINTER(0);
+ ScanDirection dir = (ScanDirection) PG_GETARG_INT32(1);
RetrieveIndexResult res;
/*
@@ -403,18 +416,23 @@ btgettuple(IndexScanDesc scan, ScanDirection dir)
if (res)
{
((BTScanOpaque) scan->opaque)->curHeapIptr = res->heap_iptr;
- LockBuffer(((BTScanOpaque) scan->opaque)->btso_curbuf, BUFFER_LOCK_UNLOCK);
+ LockBuffer(((BTScanOpaque) scan->opaque)->btso_curbuf,
+ BUFFER_LOCK_UNLOCK);
}
- return (char *) res;
+ PG_RETURN_POINTER(res);
}
/*
* btbeginscan() -- start a scan on a btree index
*/
-char *
-btbeginscan(Relation rel, bool fromEnd, uint16 keysz, ScanKey scankey)
+Datum
+btbeginscan(PG_FUNCTION_ARGS)
{
+ Relation rel = (Relation) PG_GETARG_POINTER(0);
+ bool fromEnd = PG_GETARG_BOOL(1);
+ uint16 keysz = PG_GETARG_UINT16(2);
+ ScanKey scankey = (ScanKey) PG_GETARG_POINTER(3);
IndexScanDesc scan;
/* get the scan */
@@ -423,15 +441,20 @@ btbeginscan(Relation rel, bool fromEnd, uint16 keysz, ScanKey scankey)
/* register scan in case we change pages it's using */
_bt_regscan(scan);
- return (char *) scan;
+ PG_RETURN_POINTER(scan);
}
/*
* btrescan() -- rescan an index relation
*/
-void
-btrescan(IndexScanDesc scan, bool fromEnd, ScanKey scankey)
+Datum
+btrescan(PG_FUNCTION_ARGS)
{
+ IndexScanDesc scan = (IndexScanDesc) PG_GETARG_POINTER(0);
+#ifdef NOT_USED /* XXX surely it's wrong to ignore this? */
+ bool fromEnd = PG_GETARG_BOOL(1);
+#endif
+ ScanKey scankey = (ScanKey) PG_GETARG_POINTER(2);
ItemPointer iptr;
BTScanOpaque so;
@@ -479,6 +502,7 @@ btrescan(IndexScanDesc scan, bool fromEnd, ScanKey scankey)
so->numberOfKeys * sizeof(ScanKeyData));
}
+ PG_RETURN_POINTER(NULL); /* no real return value */
}
void
@@ -504,9 +528,10 @@ btmovescan(IndexScanDesc scan, Datum v)
/*
* btendscan() -- close down a scan
*/
-void
-btendscan(IndexScanDesc scan)
+Datum
+btendscan(PG_FUNCTION_ARGS)
{
+ IndexScanDesc scan = (IndexScanDesc) PG_GETARG_POINTER(0);
ItemPointer iptr;
BTScanOpaque so;
@@ -534,14 +559,17 @@ btendscan(IndexScanDesc scan)
pfree(so);
_bt_dropscan(scan);
+
+ PG_RETURN_POINTER(NULL); /* no real return value */
}
/*
* btmarkpos() -- save current scan position
*/
-void
-btmarkpos(IndexScanDesc scan)
+Datum
+btmarkpos(PG_FUNCTION_ARGS)
{
+ IndexScanDesc scan = (IndexScanDesc) PG_GETARG_POINTER(0);
ItemPointer iptr;
BTScanOpaque so;
@@ -563,14 +591,17 @@ btmarkpos(IndexScanDesc scan)
scan->currentMarkData = scan->currentItemData;
so->mrkHeapIptr = so->curHeapIptr;
}
+
+ PG_RETURN_POINTER(NULL); /* no real return value */
}
/*
* btrestrpos() -- restore scan to last saved position
*/
-void
-btrestrpos(IndexScanDesc scan)
+Datum
+btrestrpos(PG_FUNCTION_ARGS)
{
+ IndexScanDesc scan = (IndexScanDesc) PG_GETARG_POINTER(0);
ItemPointer iptr;
BTScanOpaque so;
@@ -593,17 +624,24 @@ btrestrpos(IndexScanDesc scan)
scan->currentItemData = scan->currentMarkData;
so->curHeapIptr = so->mrkHeapIptr;
}
+
+ PG_RETURN_POINTER(NULL); /* no real return value */
}
/* stubs */
-void
-btdelete(Relation rel, ItemPointer tid)
+Datum
+btdelete(PG_FUNCTION_ARGS)
{
+ Relation rel = (Relation) PG_GETARG_POINTER(0);
+ ItemPointer tid = (ItemPointer) PG_GETARG_POINTER(1);
+
/* adjust any active scans that will be affected by this deletion */
_bt_adjscans(rel, tid);
/* delete the data from the page */
_bt_pagedel(rel, tid);
+
+ PG_RETURN_POINTER(NULL); /* no real return value */
}
static void
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-05 10:31:05 +0000