SERVER-41721 Make IndexAccessMethod::getKeys output a KeyString set

2 files changed, 23 insertions, 0 deletions

diff --git a/src/mongo/bson/bsonobj.cpp b/src/mongo/bson/bsonobj.cpp
index 5985ec18976..0e44b7d398d 100644
--- a/src/mongo/bson/bsonobj.cpp
+++ b/src/mongo/bson/bsonobj.cpp
@@ -378,6 +378,25 @@ BSONObj BSONObj::replaceFieldNames(const BSONObj& names) const {
     return b.obj();
 }
 
+BSONObj BSONObj::stripFieldNames(const BSONObj& obj) {
+    if (!obj.hasFieldNames())
+        return obj;
+
+    BSONObjBuilder bb;
+    for (auto e : obj) {
+        bb.appendAs(e, StringData());
+    }
+    return bb.obj();
+}
+
+bool BSONObj::hasFieldNames() const {
+    for (auto e : *this) {
+        if (e.fieldName()[0])
+            return true;
+    }
+    return false;
+}
+
 Status BSONObj::storageValidEmbedded() const {
     BSONObjIterator i(*this);
 
diff --git a/src/mongo/bson/bsonobj.h b/src/mongo/bson/bsonobj.h
index 82efac98902..bf8559f7dbd 100644
--- a/src/mongo/bson/bsonobj.h
+++ b/src/mongo/bson/bsonobj.h
@@ -532,6 +532,10 @@ public:
         passed object. */
     BSONObj replaceFieldNames(const BSONObj& obj) const;
 
+    static BSONObj stripFieldNames(const BSONObj& obj);
+
+    bool hasFieldNames() const;
+
     /**
      * Returns true if this object is valid according to the specified BSON version, and returns
      * false otherwise.