diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/main/java/com/amazon/carbonado/qe/CompositeScore.java | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/main/java/com/amazon/carbonado/qe/CompositeScore.java b/src/main/java/com/amazon/carbonado/qe/CompositeScore.java index 9992690..e031fe2 100644 --- a/src/main/java/com/amazon/carbonado/qe/CompositeScore.java +++ b/src/main/java/com/amazon/carbonado/qe/CompositeScore.java @@ -224,8 +224,18 @@ public class CompositeScore<S extends Storable> { return preferenceResult;
}
- // Preference scores are the same? That seems unlikely, but
- // choose the better filtering index.
+ // Okay, preference is not helping. If handled filter count is
+ // the same, choose the better ordering. Why? Most likely a nearly
+ // identical index was created specifically for ordering. One index
+ // might look better for filtering just because it is clustered.
+
+ if (firstScore.getHandledCount() == secondScore.getHandledCount()) {
+ if (handledScore != 0) {
+ return handledScore;
+ }
+ }
+
+ // Just return the result for the better filtering index.
return result;
}
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