SERVER-10159 Only do rematch for positional data when necessary

1 files changed, 6 insertions, 1 deletions

diff --git a/src/mongo/db/ops/modifier_object_replace.cpp b/src/mongo/db/ops/modifier_object_replace.cpp
index 4f48418a563..70b24a2cdf1 100644
--- a/src/mongo/db/ops/modifier_object_replace.cpp
+++ b/src/mongo/db/ops/modifier_object_replace.cpp
@@ -82,7 +82,8 @@ namespace mongo {
     ModifierObjectReplace::~ModifierObjectReplace() {
     }
 
-    Status ModifierObjectReplace::init(const BSONElement& modExpr, const Options& opts) {
+    Status ModifierObjectReplace::init(const BSONElement& modExpr, const Options& opts,
+                                       bool* positional) {
 
         if (modExpr.type() != Object) {
             // Impossible, really since the caller check this already...
@@ -92,6 +93,10 @@ namespace mongo {
                                         << modExpr.type());
         }
 
+        // Object replacements never have positional operator.
+        if (positional)
+            *positional = false;
+
         // We make a copy of the object here because the update driver does not guarantees, in
         // the case of object replacement, that the modExpr is going to outlive this mod.
         _val = modExpr.embeddedObject().getOwned();