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Revert buggy optimization of index scans

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606c0123d6 attempted to reduce cost of index scans using > and <
strategies, though got that completely wrong in a few complex cases.

Revert whole patch until we find a safe optimization.
This commit is contained in:
Simon Riggs
2016-03-03 09:53:43 +00:00
parent 6c90996a4c
commit c7111d11b1
3 changed files with 0 additions and 35 deletions
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src/include/access/nbtree.h
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@ -646,7 +646,6 @@ typedef BTScanOpaqueData *BTScanOpaque;
*/
#define SK_BT_REQFWD 0x00010000 /* required to continue forward scan */
#define SK_BT_REQBKWD 0x00020000 /* required to continue backward scan */
#define SK_BT_MATCHED 0x00040000 /* required to skip further key match */
#define SK_BT_INDOPTION_SHIFT 24 /* must clear the above bits */
#define SK_BT_DESC (INDOPTION_DESC << SK_BT_INDOPTION_SHIFT)
#define SK_BT_NULLS_FIRST (INDOPTION_NULLS_FIRST << SK_BT_INDOPTION_SHIFT)