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Restructure indexscan API (index_beginscan, index_getnext) per

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yesterday's proposal to pghackers.  Also remove unnecessary parameters
to heap_beginscan, heap_rescan.  I modified pg_proc.h to reflect the
new numbers of parameters for the AM interface routines, but did not
force an initdb because nothing actually looks at those fields.
This commit is contained in:
Tom Lane
2002-05-20 23:51:44 +00:00
parent c961474c96
commit 44fbe20d62
59 changed files with 834 additions and 1283 deletions
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10
src/include/access/nbtree.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: nbtree.h,v 1.59 2001/11/05 17:46:31 momjian Exp $
* $Id: nbtree.h,v 1.60 2002/05/20 23:51:43 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -100,8 +100,8 @@ typedef struct BTScanOpaqueData
ItemPointerData mrkHeapIptr;
/* these fields are set by _bt_orderkeys(), which see for more info: */
bool qual_ok; /* false if qual can never be satisfied */
uint16 numberOfKeys; /* number of scan keys */
uint16 numberOfRequiredKeys; /* number of keys that must be
int numberOfKeys; /* number of scan keys */
int numberOfRequiredKeys; /* number of keys that must be
* matched to continue the scan */
ScanKey keyData; /* array of scan keys */
} BTScanOpaqueData;
@@ -366,8 +366,8 @@ extern OffsetNumber _bt_binsrch(Relation rel, Buffer buf, int keysz,
ScanKey scankey);
extern int32 _bt_compare(Relation rel, int keysz, ScanKey scankey,
Page page, OffsetNumber offnum);
extern RetrieveIndexResult _bt_next(IndexScanDesc scan, ScanDirection dir);
extern RetrieveIndexResult _bt_first(IndexScanDesc scan, ScanDirection dir);
extern bool _bt_next(IndexScanDesc scan, ScanDirection dir);
extern bool _bt_first(IndexScanDesc scan, ScanDirection dir);
extern bool _bt_step(IndexScanDesc scan, Buffer *bufP, ScanDirection dir);
/*