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-rw-r--r--src/mongo/db/index/2d_access_method.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mongo/db/index/2d_access_method.cpp b/src/mongo/db/index/2d_access_method.cpp
index d81a9f6ea30..d5af3a86a97 100644
--- a/src/mongo/db/index/2d_access_method.cpp
+++ b/src/mongo/db/index/2d_access_method.cpp
@@ -64,7 +64,7 @@ void TwoDAccessMethod::doGetKeys(OperationContext* opCtx,
KeyStringSet* keys,
KeyStringSet* multikeyMetadataKeys,
MultikeyPaths* multikeyPaths,
- boost::optional<RecordId> id) const {
+ const boost::optional<RecordId>& id) const {
ExpressionKeysPrivate::get2DKeys(pooledBufferBuilder,
obj,
_params,