diff --git a/src/Storages/StorageMerge.cpp b/src/Storages/StorageMerge.cpp
index 1bf585771ff..36c92129177 100644
--- a/src/Storages/StorageMerge.cpp
+++ b/src/Storages/StorageMerge.cpp
@@ -1295,38 +1295,35 @@ std::tuple<bool /* is_regexp */, ASTPtr> StorageMerge::evaluateDatabaseName(cons
 
 bool StorageMerge::supportsTrivialCountOptimization() const
 {
-    bool supported = true;
-    forEachTable([&](const auto & table)
-    {
-        supported &= table->supportsTrivialCountOptimization();
-    });
-    return supported;
+    return getFirstTable([&](const auto & table) { return !table->supportsTrivialCountOptimization(); }) == nullptr;
 }
 
 std::optional<UInt64> StorageMerge::totalRows(const Settings & settings) const
 {
-    UInt64 total_rows = 0;
-    forEachTable([&](const auto & table)
-    {
-        std::optional<UInt64> rows = table->totalRows(settings);
-        if (rows)
-            total_rows += *rows;
-    });
-    return {total_rows};
+    return totalRowsOrBytes([&](const auto & table) { return table->totalRows(settings); });
 }
 
 std::optional<UInt64> StorageMerge::totalBytes(const Settings & settings) const
 {
-    UInt64 total_bytes = 0;
-    forEachTable([&](const auto & table)
-    {
-        std::optional<UInt64> bytes = table->totalBytes(settings);
-        if (bytes)
-            total_bytes += *bytes;
-    });
-    return {total_bytes};
+    return totalRowsOrBytes([&](const auto & table) { return table->totalBytes(settings); });
 }
 
+template <typename F>
+std::optional<UInt64> StorageMerge::totalRowsOrBytes(F && func) const
+{
+    UInt64 total_rows_or_bytes = 0;
+    auto first_table = getFirstTable([&](const auto & table)
+    {
+        if (auto rows_or_bytes = func(table))
+        {
+            total_rows_or_bytes += *rows_or_bytes;
+            return false;
+        }
+        return true;
+    });
+
+    return first_table ? std::nullopt : std::make_optional(total_rows_or_bytes);
+}
 
 void registerStorageMerge(StorageFactory & factory)
 {
diff --git a/src/Storages/StorageMerge.h b/src/Storages/StorageMerge.h
index 762dc71ab83..2455eb678bb 100644
--- a/src/Storages/StorageMerge.h
+++ b/src/Storages/StorageMerge.h
@@ -79,8 +79,8 @@ public:
 
     bool supportsTrivialCountOptimization() const override;
 
-    std::optional<UInt64> totalRows(const Settings &) const override;
-    std::optional<UInt64> totalBytes(const Settings &) const override;
+    std::optional<UInt64> totalRows(const Settings & settings) const override;
+    std::optional<UInt64> totalBytes(const Settings & settings) const override;
 
 private:
     std::optional<OptimizedRegularExpression> source_database_regexp;
@@ -118,6 +118,9 @@ private:
 
     bool tableSupportsPrewhere() const;
 
+    template <typename F>
+    std::optional<UInt64> totalRowsOrBytes(F && func) const;
+
     friend class ReadFromMerge;
 };