use new index version on reindex command

2 files changed, 16 insertions, 0 deletions

diff --git a/bson/bson-inl.h b/bson/bson-inl.h
index 71b7c50bab7..54431549852 100644
--- a/bson/bson-inl.h
+++ b/bson/bson-inl.h
@@ -974,4 +974,15 @@ dodouble:
         assert( ! j.more() );
     }
 
+    inline BSONObj BSONObj::removeField(const StringData& name) const { 
+        BSONObjBuilder b;
+        BSONObjIterator i(*this);
+        while ( i.more() ) {
+            BSONElement e = i.next();
+            const char *fname = e.fieldName();
+            if( strcmp(name.data(), fname) )
+                b.append(e);
+        }
+        return b.obj();
+    }
 }
diff --git a/bson/bsonobj.h b/bson/bsonobj.h
index 1e0cb9f591b..cb1749142c1 100644
--- a/bson/bsonobj.h
+++ b/bson/bsonobj.h
@@ -148,6 +148,11 @@ namespace mongo {
         /** note: addFields always adds _id even if not specified */
         int addFields(BSONObj& from, set<string>& fields); /* returns n added */
 
+        /** remove specified field and return a new object with the remaining fields.
+            slowish as builds a full new object
+         */
+        BSONObj removeField(const StringData& name) const;
+
         /** returns # of top level fields in the object
            note: iterates to count the fields
         */