1 files changed, 8 insertions, 0 deletions
diff --git a/src/mongo/db/query/index_bounds_builder.cpp b/src/mongo/db/query/index_bounds_builder.cpp
index 38d53bb1bf9..cf94e16822c 100644
--- a/src/mongo/db/query/index_bounds_builder.cpp
+++ b/src/mongo/db/query/index_bounds_builder.cpp
@@ -249,6 +249,14 @@ bool typeMatch(const BSONObj& obj) {
     return first.canonicalType() == second.canonicalType();
 }
 
+bool IndexBoundsBuilder::canUseCoveredMatching(const MatchExpression* expr,
+                                               const IndexEntry& index) {
+    IndexBoundsBuilder::BoundsTightness tightness;
+    OrderedIntervalList oil;
+    translate(expr, BSONElement{}, index, &oil, &tightness);
+    return tightness >= IndexBoundsBuilder::INEXACT_COVERED;
+}
+
 // static
 void IndexBoundsBuilder::translate(const MatchExpression* expr,
                                    const BSONElement& elt,