uint32_t result, size_t input_rows_count) {

ColumnPtr result_null_map_column;

/// If result is already nullable.

ColumnPtr src_not_nullable = src;

MutableColumnPtr mutable_result_null_map_column;

if (const auto* nullable = check_and_get_column<ColumnNullable>(*src)) {

src_not_nullable = nullable->get_nested_column_ptr();

result_null_map_column = nullable->get_null_map_column_ptr();

}

for (const auto& arg : args) {

const ColumnWithTypeAndName& elem = block.get_by_position(arg);

if (!elem.type->is_nullable() || is_column_const(*elem.column)) {

continue;

}

if (const auto* nullable = assert_cast<const ColumnNullable*>(elem.column.get());

nullable->has_null()) {

const ColumnPtr& null_map_column = nullable->get_null_map_column_ptr();

if (!result_null_map_column) { // NOLINT(bugprone-use-after-move)

result_null_map_column = null_map_column->clone_resized(input_rows_count);

continue;

}

if (!mutable_result_null_map_column) {

mutable_result_null_map_column =

std::move(result_null_map_column)->assume_mutable();

}

NullMap& result_null_map =

assert_cast<ColumnUInt8&>(*mutable_result_null_map_column).get_data();

const NullMap& src_null_map =

assert_cast<const ColumnUInt8&>(*null_map_column).get_data();

VectorizedUtils::update_null_map(result_null_map, src_null_map);

}

}

if (!result_null_map_column) {

if (is_column_const(*src)) {

return ColumnConst::create(

make_nullable(assert_cast<const ColumnConst&>(*src).get_data_column_ptr(),

false),

input_rows_count);

}

return ColumnNullable::create(src, ColumnUInt8::create(input_rows_count, 0));

}

return ColumnNullable::create(src_not_nullable, result_null_map_column);

return std::ranges::any_of(args, [&block](const auto& elem) {

return block.get_by_position(elem).type->is_nullable();

});

FunctionContext* context, Block& block, const ColumnNumbers& args, uint32_t result,

size_t input_rows_count, bool dry_run) const {

bool executed = false;

RETURN_IF_ERROR(default_implementation_for_nulls(context, block, args, result, input_rows_count,

dry_run, &executed));

if (executed) {

return Status::OK();

}

if (dry_run) {

return execute_impl_dry_run(context, block, args, result, input_rows_count);

} else {

return execute_impl(context, block, args, result, input_rows_count);

}

FunctionContext* context, Block& block, const ColumnNumbers& args, uint32_t result,

size_t input_rows_count, bool dry_run, bool* executed) const {

*executed = false;

ColumnNumbers args_expect_const = get_arguments_that_are_always_constant();

// Check that these arguments are really constant.

for (auto arg_num : args_expect_const) {

if (arg_num < args.size() &&

!is_column_const(*block.get_by_position(args[arg_num]).column)) {

return Status::InvalidArgument("Argument at index {} for function {} must be constant",

arg_num, get_name());

}

}

if (args.empty() || !use_default_implementation_for_constants() ||

!VectorizedUtils::all_arguments_are_constant(block, args)) {

return Status::OK();

}

// now all columns are const.

Block temporary_block;

size_t arguments_size = args.size();

for (size_t arg_num = 0; arg_num < arguments_size; ++arg_num) {

const ColumnWithTypeAndName& column = block.get_by_position(args[arg_num]);

// Columns in const_list --> column_const, others --> nested_column

// that's because some functions supposes some specific columns always constant.

// If we unpack it, there will be unnecessary cost of virtual judge.

if (args_expect_const.end() !=

std::find(args_expect_const.begin(), args_expect_const.end(), arg_num)) {

temporary_block.insert({column.column, column.type, column.name});

} else {

temporary_block.insert(

{assert_cast<const ColumnConst*>(column.column.get())->get_data_column_ptr(),

column.type, column.name});

}

}

temporary_block.insert(block.get_by_position(result));

ColumnNumbers temporary_argument_numbers(arguments_size);

for (size_t i = 0; i < arguments_size; ++i) {

temporary_argument_numbers[i] = i;

}

RETURN_IF_ERROR(_execute_skipped_constant_deal(context, temporary_block,

temporary_argument_numbers, arguments_size,

temporary_block.rows(), dry_run));

ColumnPtr result_column;

/// extremely rare case, when we have function with completely const arguments

/// but some of them produced by non is_deterministic function

if (temporary_block.get_by_position(arguments_size).column->size() > 1) {

result_column = temporary_block.get_by_position(arguments_size).column->clone_resized(1);

} else {

result_column = temporary_block.get_by_position(arguments_size).column;

}

// We shuold handle the case where the result column is also a ColumnConst.

block.get_by_position(result).column = ColumnConst::create(result_column, input_rows_count);

*executed = true;

return Status::OK();

FunctionContext* context, Block& block, const ColumnNumbers& args, uint32_t result,

size_t input_rows_count, bool dry_run, bool* executed) const {

*executed = false;

if (args.empty() || !use_default_implementation_for_nulls()) {

return Status::OK();

}

if (std::ranges::any_of(args, [&block](const auto& elem) {

return block.get_by_position(elem).column->only_null();

})) {

block.get_by_position(result).column =

block.get_by_position(result).type->create_column_const(input_rows_count, Field());

*executed = true;

return Status::OK();

}

if (have_null_column(block, args)) {

bool need_to_default = need_replace_null_data_to_default();

if (context) {

need_to_default &= context->check_overflow_for_decimal();

}

// extract nested column from nulls

ColumnNumbers new_args;

for (auto arg : args) {

new_args.push_back(block.columns());

block.insert(block.get_by_position(arg).get_nested(need_to_default));

DCHECK(!block.get_by_position(new_args.back()).column->is_nullable());

}

RETURN_IF_ERROR(execute_without_low_cardinality_columns(context, block, new_args, result,

block.rows(), dry_run));

// After run with nested, wrap them in null. Before this, block.get_by_position(result).type

// is not compatible with get_by_position(result).column

block.get_by_position(result).column = wrap_in_nullable(

block.get_by_position(result).column, block, args, result, input_rows_count);

while (!new_args.empty()) {

block.erase(new_args.back());

new_args.pop_back();

}

*executed = true;

return Status::OK();

}

return Status::OK();

FunctionContext* context, Block& block, const ColumnNumbers& args, uint32_t result,

size_t input_rows_count, bool dry_run) const {

bool executed = false;

RETURN_IF_ERROR(default_implementation_for_constant_arguments(

context, block, args, result, input_rows_count, dry_run, &executed));

if (executed) {

return Status::OK();

}

return _execute_skipped_constant_deal(context, block, args, result, input_rows_count, dry_run);

const ColumnNumbers& args, uint32_t result,

size_t input_rows_count, bool dry_run) const {

return execute_without_low_cardinality_columns(context, block, args, result, input_rows_count,

dry_run);

if (is_variadic()) {

return;

}

size_t expected_number_of_arguments = get_number_of_arguments();

CHECK_EQ(number_of_arguments, expected_number_of_arguments) << fmt::format(

"Number of arguments for function {} doesn't match: passed {} , should be {}",

get_name(), number_of_arguments, expected_number_of_arguments);

const ColumnsWithTypeAndName& arguments) const {

check_number_of_arguments(arguments.size());

if (!arguments.empty() && use_default_implementation_for_nulls()) {

if (have_null_column(arguments)) {

ColumnNumbers numbers(arguments.size());

std::iota(numbers.begin(), numbers.end(), 0);

auto [nested_block, _] =

create_block_with_nested_columns(Block(arguments), numbers, false);

auto return_type = get_return_type_impl(

ColumnsWithTypeAndName(nested_block.begin(), nested_block.end()));

return make_nullable(return_type);

}

}

return get_return_type_impl(arguments);

if (use_default_implementation_for_low_cardinality_columns()) {

ColumnsWithTypeAndName args_without_low_cardinality(arguments);

auto type_without_low_cardinality =

get_return_type_without_low_cardinality(args_without_low_cardinality);

return type_without_low_cardinality;

}

return get_return_type_without_low_cardinality(arguments);

const DataTypePtr& return_type, const DataTypePtr& func_return_type) const {

return (is_date_or_datetime(return_type->get_primitive_type()) &&

is_date_or_datetime(func_return_type->get_primitive_type())) ||

(is_date_v2_or_datetime_v2(return_type->get_primitive_type()) &&

is_date_v2_or_datetime_v2(func_return_type->get_primitive_type())) ||

// For some date functions such as str_to_date(string, string), return_type will

// be datetimev2 if users enable datev2 but get_return_type(arguments) will still

// return datetime. We need keep backward compatibility here.

(is_date_v2_or_datetime_v2(return_type->get_primitive_type()) &&

is_date_or_datetime(func_return_type->get_primitive_type())) ||

(is_date_or_datetime(return_type->get_primitive_type()) &&

is_date_v2_or_datetime_v2(func_return_type->get_primitive_type())) ||

(is_decimal(return_type->get_primitive_type()) &&

is_decimal(func_return_type->get_primitive_type()));

const DataTypePtr& return_type, const DataTypePtr& func_return_type) const {

auto return_type_ptr = return_type->is_nullable()

? ((DataTypeNullable*)return_type.get())->get_nested_type()

: return_type;

auto func_return_type_ptr =

func_return_type->is_nullable()

? ((DataTypeNullable*)func_return_type.get())->get_nested_type()

: func_return_type;

if (!(return_type_ptr->get_primitive_type() == TYPE_ARRAY &&

func_return_type_ptr->get_primitive_type() == TYPE_ARRAY)) {

return false;

}

auto nested_nullable_return_type_ptr =

(assert_cast<const DataTypeArray*>(return_type_ptr.get()))->get_nested_type();

auto nested_nullable_func_return_type =

(assert_cast<const DataTypeArray*>(func_return_type_ptr.get()))->get_nested_type();

// There must be nullable inside array type.

if (nested_nullable_return_type_ptr->is_nullable() &&

nested_nullable_func_return_type->is_nullable()) {

auto nested_return_type_ptr =

((DataTypeNullable*)(nested_nullable_return_type_ptr.get()))->get_nested_type();

auto nested_func_return_type_ptr =

((DataTypeNullable*)(nested_nullable_func_return_type.get()))->get_nested_type();

return is_date_or_datetime_or_decimal(nested_return_type_ptr, nested_func_return_type_ptr);

}

return false;