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| author | Simon Riggs <simon@2ndQuadrant.com> | 2016-03-03 09:53:43 +0000 |
|---|---|---|
| committer | Simon Riggs <simon@2ndQuadrant.com> | 2016-03-03 09:53:43 +0000 |
| commit | c7111d11b188bd631a63c98e9aab8532176007c3 (patch) | |
| tree | ccd629eb738a447d753204d584c0c143900760f3 /src/backend/access/nbtree/nbtutils.c | |
| parent | 6c90996a4cbfe02639f2ba31d22f9159832de869 (diff) | |
| download | postgresql-c7111d11b188bd631a63c98e9aab8532176007c3.tar.gz postgresql-c7111d11b188bd631a63c98e9aab8532176007c3.zip | |
Revert buggy optimization of index scans
606c0123d627 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.
Diffstat (limited to 'src/backend/access/nbtree/nbtutils.c')
| -rw-r--r-- | src/backend/access/nbtree/nbtutils.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/src/backend/access/nbtree/nbtutils.c b/src/backend/access/nbtree/nbtutils.c index c850b4804fe..b714b2c2fb6 100644 --- a/src/backend/access/nbtree/nbtutils.c +++ b/src/backend/access/nbtree/nbtutils.c @@ -1429,13 +1429,6 @@ _bt_checkkeys(IndexScanDesc scan, bool isNull; Datum test; - /* - * If the scan key has already matched we can skip this key, as long - * as the index tuple does not contain NULL values. - */ - if (key->sk_flags & SK_BT_MATCHED && !IndexTupleHasNulls(tuple)) - continue; - /* row-comparison keys need special processing */ if (key->sk_flags & SK_ROW_HEADER) { |