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new 6af68c04363 [feature](function) support format_round scala function
(#49084)
6af68c04363 is described below
commit 6af68c04363b3867c6f610f3401110d2f04fb855
Author: Tiewei Fang <fangtie...@selectdb.com>
AuthorDate: Wed Apr 9 14:44:27 2025 +0800
[feature](function) support format_round scala function (#49084)
---
be/src/vec/functions/function_string.cpp | 4 +
be/src/vec/functions/function_string.h | 360 +++++++++++++++++++++
be/test/vec/function/function_math_test.cpp | 59 ++++
.../doris/catalog/BuiltinScalarFunctions.java | 2 +
.../expressions/functions/scalar/FormatRound.java | 74 +++++
.../expressions/visitor/ScalarFunctionVisitor.java | 5 +
gensrc/script/doris_builtins_functions.py | 6 +
.../math_functions/test_format_round.out | Bin 0 -> 681 bytes
.../math_functions/test_format_round.groovy | 64 ++++
9 files changed, 574 insertions(+)
diff --git a/be/src/vec/functions/function_string.cpp
b/be/src/vec/functions/function_string.cpp
index 3d79bed171a..8a5e9c24496 100644
--- a/be/src/vec/functions/function_string.cpp
+++ b/be/src/vec/functions/function_string.cpp
@@ -1314,6 +1314,10 @@ void register_function_string(SimpleFunctionFactory&
factory) {
factory.register_function<FunctionMoneyFormat<MoneyFormatInt64Impl>>();
factory.register_function<FunctionMoneyFormat<MoneyFormatInt128Impl>>();
factory.register_function<FunctionMoneyFormat<MoneyFormatDecimalImpl>>();
+
factory.register_function<FunctionStringFormatRound<FormatRoundDoubleImpl>>();
+
factory.register_function<FunctionStringFormatRound<FormatRoundInt64Impl>>();
+
factory.register_function<FunctionStringFormatRound<FormatRoundInt128Impl>>();
+
factory.register_function<FunctionStringFormatRound<FormatRoundDecimalImpl>>();
factory.register_function<FunctionStringDigestOneArg<SM3Sum>>();
factory.register_function<FunctionStringDigestOneArg<MD5Sum>>();
factory.register_function<FunctionStringDigestSHA1>();
diff --git a/be/src/vec/functions/function_string.h
b/be/src/vec/functions/function_string.h
index 1af2855e8ad..6a7f0446df6 100644
--- a/be/src/vec/functions/function_string.h
+++ b/be/src/vec/functions/function_string.h
@@ -24,6 +24,7 @@
#include <array>
#include <boost/iterator/iterator_facade.hpp>
#include <boost/locale.hpp>
+#include <boost/multiprecision/cpp_dec_float.hpp>
#include <climits>
#include <cmath>
#include <cstddef>
@@ -1779,6 +1780,44 @@ public:
}
};
+template <typename Impl>
+class FunctionStringFormatRound : public IFunction {
+public:
+ static constexpr auto name = "format_round";
+ static FunctionPtr create() { return
std::make_shared<FunctionStringFormatRound>(); }
+ String get_name() const override { return name; }
+
+ DataTypePtr get_return_type_impl(const DataTypes& arguments) const
override {
+ if (arguments.size() != 2) {
+ throw doris::Exception(ErrorCode::INVALID_ARGUMENT,
+ "Function {} requires exactly 2 argument",
name);
+ }
+ return std::make_shared<DataTypeString>();
+ }
+ DataTypes get_variadic_argument_types_impl() const override {
+ return Impl::get_variadic_argument_types();
+ }
+ size_t get_number_of_arguments() const override { return 2; }
+
+ Status execute_impl(FunctionContext* context, Block& block, const
ColumnNumbers& arguments,
+ uint32_t result, size_t input_rows_count) const
override {
+ auto res_column = ColumnString::create();
+ ColumnPtr argument_column = block.get_by_position(arguments[0]).column;
+ ColumnPtr argument_column_2;
+ bool is_const;
+ std::tie(argument_column_2, is_const) =
+ unpack_if_const(block.get_by_position(arguments[1]).column);
+
+ auto result_column = assert_cast<ColumnString*>(res_column.get());
+
+ RETURN_IF_ERROR(Impl::execute(context, result_column, argument_column,
argument_column_2,
+ input_rows_count));
+
+ block.replace_by_position(result, std::move(res_column));
+ return Status::OK();
+ }
+};
+
class FunctionSplitPart : public IFunction {
public:
static constexpr auto name = "split_part";
@@ -3127,6 +3166,146 @@ static StringRef do_money_format(FunctionContext*
context, const string& value)
};
} // namespace MoneyFormat
+
+namespace FormatRound {
+
+constexpr size_t MAX_FORMAT_LEN_DEC32() {
+ // Decimal(9, 0)
+ // Double the size to avoid some unexpected bug.
+ return 2 * (1 + 9 + (9 / 3) + 3);
+}
+
+constexpr size_t MAX_FORMAT_LEN_DEC64() {
+ // Decimal(18, 0)
+ // Double the size to avoid some unexpected bug.
+ return 2 * (1 + 18 + (18 / 3) + 3);
+}
+
+constexpr size_t MAX_FORMAT_LEN_DEC128V2() {
+ // DecimalV2 has at most 27 digits
+ // Double the size to avoid some unexpected bug.
+ return 2 * (1 + 27 + (27 / 3) + 3);
+}
+
+constexpr size_t MAX_FORMAT_LEN_DEC128V3() {
+ // Decimal(38, 0)
+ // Double the size to avoid some unexpected bug.
+ return 2 * (1 + 39 + (39 / 3) + 3);
+}
+
+constexpr size_t MAX_FORMAT_LEN_INT64() {
+ // INT_MIN = -9223372036854775807
+ // Double the size to avoid some unexpected bug.
+ return 2 * (1 + 20 + (20 / 3) + 3);
+}
+
+constexpr size_t MAX_FORMAT_LEN_INT128() {
+ // INT128_MIN = -170141183460469231731687303715884105728
+ return 2 * (1 + 39 + (39 / 3) + 3);
+}
+
+template <typename T, size_t N>
+StringRef do_format_round(FunctionContext* context, UInt32 scale, T int_value,
T frac_value,
+ Int32 decimal_places) {
+ static_assert(std::is_integral<T>::value);
+ const bool is_negative = int_value < 0 || frac_value < 0;
+
+ // do round to frac_part based on decimal_places
+ if (scale > decimal_places && decimal_places > 0) {
+ DCHECK(scale <= 38);
+ // do rounding, so we need to reserve decimal_places + 1 digits
+ auto multiplier =
+ common::exp10_i128(std::abs(static_cast<int>(scale -
(decimal_places + 1))));
+ // do divide first to avoid overflow
+ // after round frac_value will be positive by design
+ frac_value = std::abs(static_cast<int>(frac_value / multiplier)) + 5;
+ frac_value /= 10;
+ } else if (scale < decimal_places && decimal_places > 0) {
+ // since scale <= decimal_places, overflow is impossible
+ frac_value = frac_value * common::exp10_i32(decimal_places - scale);
+ }
+
+ // Calculate power of 10 for decimal_places
+ T decimal_power = common::exp10_i32(decimal_places);
+ if (frac_value == decimal_power) {
+ if (is_negative) {
+ int_value -= 1;
+ } else {
+ int_value += 1;
+ }
+ frac_value = 0;
+ }
+
+ bool append_sign_manually = false;
+ if (is_negative && int_value == 0) {
+ append_sign_manually = true;
+ }
+
+ char local[N];
+ char* p = SimpleItoaWithCommas(int_value, local, sizeof(local));
+ const Int32 integer_str_len = N - (p - local);
+ const Int32 frac_str_len = decimal_places;
+ const Int32 whole_decimal_str_len = (append_sign_manually ? 1 : 0) +
integer_str_len +
+ (decimal_places > 0 ? 1 : 0) +
frac_str_len;
+
+ StringRef result = context->create_temp_string_val(whole_decimal_str_len);
+ char* result_data = const_cast<char*>(result.data);
+
+ if (append_sign_manually) {
+ memset(result_data, '-', 1);
+ }
+
+ memcpy(result_data + (append_sign_manually ? 1 : 0), p, integer_str_len);
+ if (decimal_places > 0) {
+ *(result_data + whole_decimal_str_len - (frac_str_len + 1)) = '.';
+ }
+
+ // Convert fractional part to string with proper padding
+ T remaining_frac = std::abs(static_cast<int>(frac_value));
+ for (int i = 0; i <= decimal_places - 1; ++i) {
+ *(result_data + whole_decimal_str_len - 1 - i) = '0' + (remaining_frac
% 10);
+ remaining_frac /= 10;
+ }
+ return result;
+}
+
+// Note string value must be valid decimal string which contains two digits
after the decimal point
+static StringRef do_format_round(FunctionContext* context, const string& value,
+ Int32 decimal_places) {
+ bool is_positive = (value[0] != '-');
+ int32_t result_len =
+ value.size() +
+ (value.size() - (is_positive ? (decimal_places + 2) :
(decimal_places + 3))) / 3;
+ StringRef result = context->create_temp_string_val(result_len);
+ char* result_data = const_cast<char*>(result.data);
+ if (!is_positive) {
+ *result_data = '-';
+ }
+ for (int i = value.size() - (decimal_places + 2), j = result_len -
(decimal_places + 2); i >= 0;
+ i = i - 3) {
+ *(result_data + j) = *(value.data() + i);
+ if (i - 1 < 0) {
+ break;
+ }
+ *(result_data + j - 1) = *(value.data() + i - 1);
+ if (i - 2 < 0) {
+ break;
+ }
+ *(result_data + j - 2) = *(value.data() + i - 2);
+ if (j - 3 > 1 || (j - 3 == 1 && is_positive)) {
+ *(result_data + j - 3) = ',';
+ j -= 4;
+ } else {
+ j -= 3;
+ }
+ }
+ memcpy(result_data + result_len - (decimal_places + 1),
+ value.data() + value.size() - (decimal_places + 1), (decimal_places
+ 1));
+ return result;
+};
+
+} // namespace FormatRound
+
struct MoneyFormatDoubleImpl {
static DataTypes get_variadic_argument_types() { return
{std::make_shared<DataTypeFloat64>()}; }
@@ -3267,6 +3446,187 @@ struct MoneyFormatDecimalImpl {
}
};
+struct FormatRoundDoubleImpl {
+ static DataTypes get_variadic_argument_types() {
+ return {std::make_shared<DataTypeFloat64>(),
std::make_shared<vectorized::DataTypeInt32>()};
+ }
+
+ static Status execute(FunctionContext* context, ColumnString*
result_column,
+ const ColumnPtr col_ptr, ColumnPtr
decimal_places_col_ptr,
+ size_t input_rows_count) {
+ const auto& arg_column_data_2 =
+ assert_cast<const
ColumnInt32*>(decimal_places_col_ptr.get())->get_data();
+ const auto* data_column = assert_cast<const
ColumnFloat64*>(col_ptr.get());
+ // when scale is above 38, we will go here
+ for (size_t i = 0; i < input_rows_count; i++) {
+ int32_t decimal_places = arg_column_data_2[i];
+ if (decimal_places < 0) {
+ return Status::InvalidArgument(
+ "The second argument is {}, it can not be less than
0.", decimal_places);
+ }
+ // round to `decimal_places` decimal places
+ double value =
MathFunctions::my_double_round(data_column->get_element(i),
+ decimal_places,
false, false);
+ StringRef str = FormatRound::do_format_round(
+ context, fmt::format("{:.{}f}", value, decimal_places),
decimal_places);
+ result_column->insert_data(str.data, str.size);
+ }
+ return Status::OK();
+ }
+};
+
+struct FormatRoundInt64Impl {
+ static DataTypes get_variadic_argument_types() {
+ return {std::make_shared<DataTypeInt64>(),
std::make_shared<vectorized::DataTypeInt32>()};
+ }
+
+ static Status execute(FunctionContext* context, ColumnString*
result_column,
+ const ColumnPtr col_ptr, ColumnPtr
decimal_places_col_ptr,
+ size_t input_rows_count) {
+ const auto* data_column = assert_cast<const
ColumnVector<Int64>*>(col_ptr.get());
+ const auto& arg_column_data_2 =
+ assert_cast<const
ColumnInt32*>(decimal_places_col_ptr.get())->get_data();
+ for (size_t i = 0; i < input_rows_count; i++) {
+ int32_t decimal_places = arg_column_data_2[i];
+ if (decimal_places < 0) {
+ return Status::InvalidArgument(
+ "The second argument is {}, it can not be less than
0.", decimal_places);
+ }
+ Int64 value = data_column->get_element(i);
+ StringRef str =
+ FormatRound::do_format_round<Int64,
FormatRound::MAX_FORMAT_LEN_INT64()>(
+ context, 0, value, 0, decimal_places);
+ result_column->insert_data(str.data, str.size);
+ }
+ return Status::OK();
+ }
+};
+
+struct FormatRoundInt128Impl {
+ static DataTypes get_variadic_argument_types() {
+ return {std::make_shared<DataTypeInt128>(),
std::make_shared<vectorized::DataTypeInt32>()};
+ }
+
+ static Status execute(FunctionContext* context, ColumnString*
result_column,
+ const ColumnPtr col_ptr, ColumnPtr
decimal_places_col_ptr,
+ size_t input_rows_count) {
+ const auto* data_column = assert_cast<const
ColumnVector<Int128>*>(col_ptr.get());
+ const auto& arg_column_data_2 =
+ assert_cast<const
ColumnInt32*>(decimal_places_col_ptr.get())->get_data();
+ // SELECT
money_format(170141183460469231731687303715884105728/*INT128_MAX + 1*/) will
+ // get "170,141,183,460,469,231,731,687,303,715,884,105,727.00" in
doris,
+ // see
https://github.com/apache/doris/blob/788abf2d7c3c7c2d57487a9608e889e7662d5fb2/be/src/vec/data_types/data_type_number_base.cpp#L124
+ for (size_t i = 0; i < input_rows_count; i++) {
+ int32_t decimal_places = arg_column_data_2[i];
+ if (decimal_places < 0) {
+ return Status::InvalidArgument(
+ "The second argument is {}, it can not be less than
0.", decimal_places);
+ }
+ Int128 value = data_column->get_element(i);
+ StringRef str =
+ FormatRound::do_format_round<Int128,
FormatRound::MAX_FORMAT_LEN_INT128()>(
+ context, 0, value, 0, decimal_places);
+ result_column->insert_data(str.data, str.size);
+ }
+ return Status::OK();
+ }
+};
+
+struct FormatRoundDecimalImpl {
+ static DataTypes get_variadic_argument_types() {
+ return {std::make_shared<DataTypeDecimal<Decimal128V2>>(27, 9),
+ std::make_shared<vectorized::DataTypeInt32>()};
+ }
+
+ static Status execute(FunctionContext* context, ColumnString*
result_column, ColumnPtr col_ptr,
+ ColumnPtr decimal_places_col_ptr, size_t
input_rows_count) {
+ const auto& arg_column_data_2 =
+ assert_cast<const
ColumnInt32*>(decimal_places_col_ptr.get())->get_data();
+ if (auto* decimalv2_column =
check_and_get_column<ColumnDecimal<Decimal128V2>>(*col_ptr)) {
+ for (size_t i = 0; i < input_rows_count; i++) {
+ int32_t decimal_places = arg_column_data_2[i];
+ if (decimal_places < 0) {
+ return Status::InvalidArgument(
+ "The second argument is {}, it can not be less
than 0.",
+ decimal_places);
+ }
+ const Decimal128V2& dec128 = decimalv2_column->get_element(i);
+ DecimalV2Value value = DecimalV2Value(dec128.value);
+ // unified_frac_value has 3 digits
+ auto unified_frac_value = value.frac_value() / 1000000;
+ StringRef str =
+ FormatRound::do_format_round<Int128,
+
FormatRound::MAX_FORMAT_LEN_DEC128V2()>(
+ context, 3, value.int_value(),
unified_frac_value, decimal_places);
+
+ result_column->insert_data(str.data, str.size);
+ }
+ } else if (auto* decimal32_column =
+
check_and_get_column<ColumnDecimal<Decimal32>>(*col_ptr)) {
+ const UInt32 scale = decimal32_column->get_scale();
+ for (size_t i = 0; i < input_rows_count; i++) {
+ int32_t decimal_places = arg_column_data_2[i];
+ if (decimal_places < 0) {
+ return Status::InvalidArgument(
+ "The second argument is {}, it can not be less
than 0.",
+ decimal_places);
+ }
+ const Decimal32& frac_part =
decimal32_column->get_fractional_part(i);
+ const Decimal32& whole_part =
decimal32_column->get_whole_part(i);
+ StringRef str =
+ FormatRound::do_format_round<Int64,
FormatRound::MAX_FORMAT_LEN_DEC32()>(
+ context, scale,
static_cast<Int64>(whole_part.value),
+ static_cast<Int64>(frac_part.value),
decimal_places);
+
+ result_column->insert_data(str.data, str.size);
+ }
+ } else if (auto* decimal64_column =
+
check_and_get_column<ColumnDecimal<Decimal64>>(*col_ptr)) {
+ const UInt32 scale = decimal64_column->get_scale();
+ for (size_t i = 0; i < input_rows_count; i++) {
+ int32_t decimal_places = arg_column_data_2[i];
+ if (decimal_places < 0) {
+ return Status::InvalidArgument(
+ "The second argument is {}, it can not be less
than 0.",
+ decimal_places);
+ }
+ const Decimal64& frac_part =
decimal64_column->get_fractional_part(i);
+ const Decimal64& whole_part =
decimal64_column->get_whole_part(i);
+
+ StringRef str =
+ FormatRound::do_format_round<Int64,
FormatRound::MAX_FORMAT_LEN_DEC64()>(
+ context, scale, whole_part.value,
frac_part.value, decimal_places);
+
+ result_column->insert_data(str.data, str.size);
+ }
+ } else if (auto* decimal128_column =
+
check_and_get_column<ColumnDecimal<Decimal128V3>>(*col_ptr)) {
+ const UInt32 scale = decimal128_column->get_scale();
+ for (size_t i = 0; i < input_rows_count; i++) {
+ int32_t decimal_places = arg_column_data_2[i];
+ if (decimal_places < 0) {
+ return Status::InvalidArgument(
+ "The second argument is {}, it can not be less
than 0.",
+ decimal_places);
+ }
+ const Decimal128V3& frac_part =
decimal128_column->get_fractional_part(i);
+ const Decimal128V3& whole_part =
decimal128_column->get_whole_part(i);
+
+ StringRef str =
+ FormatRound::do_format_round<Int128,
+
FormatRound::MAX_FORMAT_LEN_DEC128V3()>(
+ context, scale, whole_part.value,
frac_part.value, decimal_places);
+
+ result_column->insert_data(str.data, str.size);
+ }
+ } else {
+ return Status::InternalError("Not supported input argument type
{}",
+ col_ptr->get_name());
+ }
+ return Status::OK();
+ }
+};
+
class FunctionStringLocatePos : public IFunction {
public:
static constexpr auto name = "locate";
diff --git a/be/test/vec/function/function_math_test.cpp
b/be/test/vec/function/function_math_test.cpp
index a0feec51753..c7ffebb8bc1 100644
--- a/be/test/vec/function/function_math_test.cpp
+++ b/be/test/vec/function/function_math_test.cpp
@@ -585,4 +585,63 @@ TEST(MathFunctionTest, money_format_test) {
}
}
+TEST(MathFunctionTest, format_round_test) {
+ std::string func_name = "format_round";
+
+ {
+ InputTypeSet input_types = {TypeIndex::Int64, TypeIndex::Int32};
+ DataSet data_set = {{{Null(), INT(2)}, Null()},
+ {{BIGINT(17014116), INT(2)},
VARCHAR("17,014,116.00")},
+ {{BIGINT(-17014116), INT(2)},
VARCHAR("-17,014,116.00")},
+ {{BIGINT(1), INT(0)}, VARCHAR("1")},
+ {{BIGINT(123456), INT(0)}, VARCHAR("123,456")},
+ {{BIGINT(123456), INT(3)}, VARCHAR("123,456.000")},
+ {{BIGINT(123456), INT(10)},
VARCHAR("123,456.0000000000")},
+ {{BIGINT(123456), INT(20)},
VARCHAR("123,456.00000000000000000000")}};
+
+ static_cast<void>(check_function<DataTypeString, true>(func_name,
input_types, data_set));
+ }
+ {
+ InputTypeSet input_types = {TypeIndex::Int128, TypeIndex::Int32};
+ DataSet data_set = {
+ {{Null(), INT(2)}, Null()},
+ {{LARGEINT(17014116), INT(2)}, VARCHAR("17,014,116.00")},
+ {{LARGEINT(-17014116), INT(2)}, VARCHAR("-17,014,116.00")},
+ {{LARGEINT(1), INT(0)}, VARCHAR("1")},
+ {{LARGEINT(123456), INT(0)}, VARCHAR("123,456")},
+ {{LARGEINT(123456), INT(3)}, VARCHAR("123,456.000")},
+ {{LARGEINT(123456), INT(10)}, VARCHAR("123,456.0000000000")},
+ {{LARGEINT(123456), INT(20)},
VARCHAR("123,456.00000000000000000000")},
+ {{LARGEINT(123456789123456789), INT(2)},
VARCHAR("123,456,789,123,456,789.00")}};
+
+ static_cast<void>(check_function<DataTypeString, true>(func_name,
input_types, data_set));
+ }
+ {
+ InputTypeSet input_types = {TypeIndex::Float64, TypeIndex::Int32};
+ DataSet data_set = {{{Null(), INT(2)}, Null()},
+ {{DOUBLE(17014116.67), INT(2)},
VARCHAR("17,014,116.67")},
+ {{DOUBLE(-17014116.67), INT(2)},
VARCHAR("-17,014,116.67")},
+ {{DOUBLE(-123.45), INT(2)}, VARCHAR("-123.45")}};
+
+ static_cast<void>(check_function<DataTypeString, true>(func_name,
input_types, data_set));
+ }
+ {
+ InputTypeSet input_types = {TypeIndex::Decimal128V2, TypeIndex::Int32};
+ DataSet data_set = {{{Null(), INT(2)}, Null()},
+ {{DECIMALV2(17014116.67), INT(2)},
VARCHAR("17,014,116.67")},
+ {{DECIMALV2(-17014116.67), INT(2)},
VARCHAR("-17,014,116.67")}};
+
+ static_cast<void>(check_function<DataTypeString, true>(func_name,
input_types, data_set));
+ }
+ {
+ BaseInputTypeSet input_types = {TypeIndex::Decimal64,
TypeIndex::Int32};
+ DataSet data_set = {
+ {{Null(), INT(2)}, Null()},
+ {{DECIMAL64(17014116, 670000000), INT(2)},
VARCHAR("17,014,116.67")},
+ {{DECIMAL64(-17014116, -670000000), INT(2)},
VARCHAR("-17,014,116.67")}};
+
+ check_function_all_arg_comb<DataTypeString, true>(func_name,
input_types, data_set);
+ }
+}
+
} // namespace doris::vectorized
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/catalog/BuiltinScalarFunctions.java
b/fe/fe-core/src/main/java/org/apache/doris/catalog/BuiltinScalarFunctions.java
index a621b9a054d..562c8ef3488 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/catalog/BuiltinScalarFunctions.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/catalog/BuiltinScalarFunctions.java
@@ -188,6 +188,7 @@ import
org.apache.doris.nereids.trees.expressions.functions.scalar.FindInSet;
import
org.apache.doris.nereids.trees.expressions.functions.scalar.FirstSignificantSubdomain;
import org.apache.doris.nereids.trees.expressions.functions.scalar.Floor;
import org.apache.doris.nereids.trees.expressions.functions.scalar.Fmod;
+import org.apache.doris.nereids.trees.expressions.functions.scalar.FormatRound;
import org.apache.doris.nereids.trees.expressions.functions.scalar.Fpow;
import org.apache.doris.nereids.trees.expressions.functions.scalar.FromBase64;
import org.apache.doris.nereids.trees.expressions.functions.scalar.FromDays;
@@ -872,6 +873,7 @@ public class BuiltinScalarFunctions implements
FunctionHelper {
scalar(Right.class, "right", "strright"),
scalar(Round.class, "round"),
scalar(RoundBankers.class, "round_bankers"),
+ scalar(FormatRound.class, "format_round"),
scalar(Rpad.class, "rpad"),
scalar(Rtrim.class, "rtrim"),
scalar(RtrimIn.class, "rtrim_in"),
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/FormatRound.java
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/FormatRound.java
new file mode 100644
index 00000000000..368bcbab296
--- /dev/null
+++
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/FormatRound.java
@@ -0,0 +1,74 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package org.apache.doris.nereids.trees.expressions.functions.scalar;
+
+import org.apache.doris.catalog.FunctionSignature;
+import org.apache.doris.nereids.trees.expressions.Expression;
+import
org.apache.doris.nereids.trees.expressions.functions.ExplicitlyCastableSignature;
+import org.apache.doris.nereids.trees.expressions.functions.PropagateNullable;
+import org.apache.doris.nereids.trees.expressions.shape.BinaryExpression;
+import org.apache.doris.nereids.trees.expressions.visitor.ExpressionVisitor;
+import org.apache.doris.nereids.types.BigIntType;
+import org.apache.doris.nereids.types.DecimalV2Type;
+import org.apache.doris.nereids.types.DecimalV3Type;
+import org.apache.doris.nereids.types.DoubleType;
+import org.apache.doris.nereids.types.IntegerType;
+import org.apache.doris.nereids.types.LargeIntType;
+import org.apache.doris.nereids.types.StringType;
+
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableList;
+
+import java.util.List;
+
+/** FormatRound function */
+public class FormatRound extends ScalarFunction
+ implements BinaryExpression, ExplicitlyCastableSignature,
PropagateNullable {
+ public static final List<FunctionSignature> SIGNATURES = ImmutableList.of(
+
FunctionSignature.ret(StringType.INSTANCE).args(BigIntType.INSTANCE,
IntegerType.INSTANCE),
+
FunctionSignature.ret(StringType.INSTANCE).args(LargeIntType.INSTANCE,
IntegerType.INSTANCE),
+
FunctionSignature.ret(StringType.INSTANCE).args(DoubleType.INSTANCE,
IntegerType.INSTANCE),
+
FunctionSignature.ret(StringType.INSTANCE).args(DecimalV2Type.SYSTEM_DEFAULT,
IntegerType.INSTANCE),
+
FunctionSignature.ret(StringType.INSTANCE).args(DecimalV3Type.WILDCARD,
IntegerType.INSTANCE));
+
+ /**
+ * constructor with 2 or more arguments.
+ */
+ public FormatRound(Expression arg0, Expression arg1) {
+ super("format_round", arg0, arg1);
+ }
+
+ /**
+ * withChildren.
+ */
+ @Override
+ public FormatRound withChildren(List<Expression> children) {
+ Preconditions.checkArgument(children.size() == 2);
+ return new FormatRound(children.get(0), children.get(1));
+ }
+
+ @Override
+ public List<FunctionSignature> getSignatures() {
+ return SIGNATURES;
+ }
+
+ @Override
+ public <R, C> R accept(ExpressionVisitor<R, C> visitor, C context) {
+ return visitor.visitFormatRound(this, context);
+ }
+}
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/visitor/ScalarFunctionVisitor.java
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/visitor/ScalarFunctionVisitor.java
index d31a80bda42..4e1c1a679a1 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/visitor/ScalarFunctionVisitor.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/visitor/ScalarFunctionVisitor.java
@@ -196,6 +196,7 @@ import
org.apache.doris.nereids.trees.expressions.functions.scalar.FindInSet;
import
org.apache.doris.nereids.trees.expressions.functions.scalar.FirstSignificantSubdomain;
import org.apache.doris.nereids.trees.expressions.functions.scalar.Floor;
import org.apache.doris.nereids.trees.expressions.functions.scalar.Fmod;
+import org.apache.doris.nereids.trees.expressions.functions.scalar.FormatRound;
import org.apache.doris.nereids.trees.expressions.functions.scalar.Fpow;
import org.apache.doris.nereids.trees.expressions.functions.scalar.FromBase64;
import org.apache.doris.nereids.trees.expressions.functions.scalar.FromDays;
@@ -1876,6 +1877,10 @@ public interface ScalarFunctionVisitor<R, C> {
return visitScalarFunction(roundBankers, context);
}
+ default R visitFormatRound(FormatRound formatRound, C context) {
+ return visitScalarFunction(formatRound, context);
+ }
+
default R visitRpad(Rpad rpad, C context) {
return visitScalarFunction(rpad, context);
}
diff --git a/gensrc/script/doris_builtins_functions.py
b/gensrc/script/doris_builtins_functions.py
index 829293bf6c3..a14251a6bf5 100644
--- a/gensrc/script/doris_builtins_functions.py
+++ b/gensrc/script/doris_builtins_functions.py
@@ -1694,6 +1694,12 @@ visible_functions = {
[['repeat'], 'STRING', ['STRING', 'INT'], 'ALWAYS_NULLABLE'],
[['lpad'], 'STRING', ['STRING', 'INT', 'STRING'], 'ALWAYS_NULLABLE'],
[['rpad'], 'STRING', ['STRING', 'INT', 'STRING'], 'ALWAYS_NULLABLE'],
+ [['format_round'], 'STRING', ['BIGINT'], ''],
+ [['format_round'], 'STRING', ['LARGEINT'], ''],
+ [['format_round'], 'STRING', ['DOUBLE', 'INT'], ''],
+ [['format_round'], 'STRING', ['DECIMAL32', 'INT'], ''],
+ [['format_round'], 'STRING', ['DECIMAL64', 'INT'], ''],
+ [['format_round'], 'STRING', ['DECIMAL128', 'INT'], ''],
[['append_trailing_char_if_absent'], 'STRING', ['STRING', 'STRING'],
'ALWAYS_NULLABLE'],
[['length'], 'INT', ['STRING'], ''],
[['crc32'], 'BIGINT', ['STRING'], ''],
diff --git
a/regression-test/data/query_p0/sql_functions/math_functions/test_format_round.out
b/regression-test/data/query_p0/sql_functions/math_functions/test_format_round.out
new file mode 100644
index 00000000000..42ce5b1ff28
Binary files /dev/null and
b/regression-test/data/query_p0/sql_functions/math_functions/test_format_round.out
differ
diff --git
a/regression-test/suites/query_p0/sql_functions/math_functions/test_format_round.groovy
b/regression-test/suites/query_p0/sql_functions/math_functions/test_format_round.groovy
new file mode 100644
index 00000000000..dfd4a057a36
--- /dev/null
+++
b/regression-test/suites/query_p0/sql_functions/math_functions/test_format_round.groovy
@@ -0,0 +1,64 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+suite("test_format_round", "p0") {
+
+ order_qt_format_round_0 """
+ select format_round(1234567.8910,5),
+ format_round(-1111.235,2),
+ format_round(123.49 ,0),
+ format_round(cast(1.44999 as double),5),
+ format_round(cast(1.44999 as decimal(20,2)),5);
+ """
+ order_qt_format_round_1 """ select format_round(1, 0) """
+ order_qt_format_round_2 """ select format_round(123456, 0) """
+ order_qt_format_round_3 """ select format_round(123456, 3) """
+ order_qt_format_round_4 """ select format_round(123456, 10) """
+ order_qt_format_round_5 """ select format_round(123456.123456, 0) """
+ order_qt_format_round_6 """ select format_round(123456.123456, 3) """
+ order_qt_format_round_7 """ select format_round(123456.123456, 8) """
+
+ sql """ DROP TABLE IF EXISTS test_format_round """
+ sql """
+ CREATE TABLE IF NOT EXISTS test_format_round (
+ `user_id` LARGEINT NOT NULL COMMENT "用户id",
+ `int_col` int COMMENT "",
+ `bigint_col` bigint COMMENT "",
+ `largeint_col` largeint COMMENT "",
+ `double_col` double COMMENT "",
+ `decimal_col` decimal COMMENT ""
+ )
+ DISTRIBUTED BY HASH(user_id) PROPERTIES("replication_num" = "1");
+ """
+
+ sql """ INSERT INTO test_format_round VALUES
+ (1, 123, 123456, 123455677788, 123456.1234567,
123456.1234567);
+ """
+ qt_select_default """ SELECT * FROM test_format_round t ORDER BY
user_id; """
+
+ order_qt_format_round_8 """ select format_round(int_col, 6) from
test_format_round"""
+ order_qt_format_round_9 """ select format_round(bigint_col, 6) from
test_format_round"""
+ order_qt_format_round_10 """ select format_round(largeint_col, 6) from
test_format_round"""
+ order_qt_format_round_12 """ select format_round(double_col, 6) from
test_format_round"""
+ order_qt_format_round_13 """ select format_round(decimal_col, 6) from
test_format_round"""
+
+ test {
+ sql """select format_round(1234567.8910, -1) """
+ exception "it can not be less than 0"
+ }
+
+}
\ No newline at end of file
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