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Patches for Vadim's multikey indexing...

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This commit is contained in:
Marc G. Fournier
1997-03-18 18:41:37 +00:00
parent c3d637ac3a
commit d146305065
9 changed files with 418 additions and 252 deletions
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7
src/backend/access/nbtree/nbtree.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtree.c,v 1.15 1997/02/22 10:04:14 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtree.c,v 1.16 1997/03/18 18:38:35 scrappy Exp $
*
* NOTES
* This file contains only the public interface routines.
@@ -423,6 +423,7 @@ btrescan(IndexScanDesc scan, bool fromEnd, ScanKey scankey)
/* reset the scan key */
so->numberOfKeys = scan->numberOfKeys;
so->numberOfFirstKeys = 0;
so->qual_ok = 1; /* may be changed by _bt_orderkeys */
if (scan->numberOfKeys > 0) {
memmove(scan->keyData,
@@ -433,7 +434,9 @@ btrescan(IndexScanDesc scan, bool fromEnd, ScanKey scankey)
so->numberOfKeys * sizeof(ScanKeyData));
/* order the keys in the qualification */
if (so->numberOfKeys > 1)
_bt_orderkeys(scan->relation, &so->numberOfKeys, so->keyData, &so->qual_ok);
_bt_orderkeys(scan->relation, so);
else
so->numberOfFirstKeys = 1;
}
/* finally, be sure that the scan exploits the tree order */