diff --git a/src/Functions/toStartOfInterval.cpp b/src/Functions/toStartOfInterval.cpp
index 35e9a93acef..3a0df85dcf0 100644
--- a/src/Functions/toStartOfInterval.cpp
+++ b/src/Functions/toStartOfInterval.cpp
@@ -215,7 +215,7 @@ public:
         std::unreachable();
     }
 
-    ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type, size_t input_rows_count) const override
+    ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type, size_t /* input_rows_count */) const override
     {
         const auto & time_column = arguments[0];
         const auto & interval_column = arguments[1];
@@ -252,6 +252,12 @@ private:
             if (time_column_vec)
                 return dispatchForIntervalColumn<ReturnType>(assert_cast<const DataTypeDate &>(time_column_type), *time_column_vec, interval_column, origin_column, result_type, time_zone);
         }
+        else if (isDate32(time_column_type))
+        {
+            const auto * time_column_vec = checkAndGetColumn<ColumnDate32>(&time_column_col);
+            if (time_column_vec)
+                return dispatchForIntervalColumn<ReturnType>(assert_cast<const DataTypeDate32 &>(time_column_type), *time_column_vec, interval_column, origin_column, result_type, time_zone);
+        }
         else if (isDateTime(time_column_type))
         {
             const auto * time_column_vec = checkAndGetColumn<ColumnDateTime>(&time_column_col);
@@ -266,12 +272,6 @@ private:
             if (time_column_vec)
                 return dispatchForIntervalColumn<ReturnType>(assert_cast<const DataTypeDateTime64 &>(time_column_type), *time_column_vec, interval_column, origin_column, result_type, time_zone, scale);
         }
-        else if (isDate32(time_column_type))
-        {
-            const auto * time_column_vec = checkAndGetColumn<ColumnDate32>(&time_column_col);
-            if (time_column_vec)
-                return dispatchForIntervalColumn(assert_cast<const DataTypeDate32 &>(time_column_type), *time_column_vec, interval_column, result_type, time_zone, input_rows_count);
-        }
         throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal column for 1st argument of function {}, expected a Date, Date32, DateTime or DateTime64", getName());
     }
 
@@ -345,11 +345,12 @@ private:
         using ResultColumnType = typename ResultDataType::ColumnType;
 
         const auto & time_data = time_column_type.getData();
+        size_t size = time_data.size();
 
         auto result_col = result_type->createColumn();
         auto * col_to = assert_cast<ResultColumnType *>(result_col.get());
         auto & result_data = col_to->getData();
-        result_data.resize(input_rows_count);
+        result_data.resize(size);
 
         Int64 scale_multiplier = DecimalUtils::scaleMultiplier<DateTime64>(scale);