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-rw-r--r--src/mongo/db/query/ce/scalar_histogram.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mongo/db/query/ce/scalar_histogram.cpp b/src/mongo/db/query/ce/scalar_histogram.cpp
index 400c9b03e60..e95215890f6 100644
--- a/src/mongo/db/query/ce/scalar_histogram.cpp
+++ b/src/mongo/db/query/ce/scalar_histogram.cpp
@@ -61,7 +61,7 @@ ScalarHistogram::ScalarHistogram() : ScalarHistogram({}, {}) {}
ScalarHistogram::ScalarHistogram(std::vector<StatsBucket> buckets) {
- for (auto bucket : buckets) {
+ for (const auto& bucket : buckets) {
Bucket b(bucket.getBoundaryCount(),
bucket.getRangeCount(),
bucket.getCumulativeCount(),