yiguolei commented on code in PR #19501:
URL: https://github.com/apache/doris/pull/19501#discussion_r1189587279
##########
be/test/vec/core/field_uint64_test.cpp:
##########
@@ -0,0 +1,232 @@
+#include "vec/common/uint128.h"
+#include "vec/core/field.h"
+
+#include "gutil/integral_types.h"
+
+#include <gen_cpp/segment_v2.pb.h>
+#include <gtest/gtest-message.h>
+#include <gtest/gtest-test-part.h>
+#include <climits>
+#include <cstdint>
+
+#include "common/config.h"
+#include "gen_cpp/data.pb.h"
+#include "gtest/gtest_pred_impl.h"
+#include "vec/core/types.h"
+
+namespace doris::vectorized {
+
+// Null
+TEST(FieldTest, Test_Field_Null) {
+ Field field_Null;
+ EXPECT_EQ("Null", field_Null.get_type_name());
+}
+
+// UInt64
+TEST(FieldTest, Test_Field_UInt64) {
+ constexpr UInt64 a = -114514;
+
+ Field field_UInt64(a);
+ auto b = get<UInt64>(field_UInt64);
+
+ EXPECT_EQ("UInt64", field_UInt64.get_type_name());
+ EXPECT_EQ(a, b);
+}
+
+// UInt128
+TEST(FieldTest, Test_Field_UInt128) {
+ constexpr unsigned __int128 a = -114514;
+
+ UInt128 val((uint64_t)a, (uint64_t)(a >> 64));
+
+ Field field_UInt128(val);
+ auto b = get<UInt128>(field_UInt128);
+
+ auto U128_to_string=[](unsigned __int128 rhs) -> String {
+ std::stringstream ss;
+ ss << std::setw(16) << std::setfill('0') << std::hex << (uint64_t)(rhs
>> 64) << (uint64_t)rhs;
+ return String(ss.str());
+ };
+
+ EXPECT_EQ("UInt128", field_UInt128.get_type_name());
+ EXPECT_EQ(U128_to_string(a), b.to_hex_string());
+ EXPECT_EQ(val, b);
+}
+
+// Int64
+TEST(FieldTest, Test_Field_Int64) {
+ constexpr Int64 a = LLONG_MAX - 114514;
+
+ Field field_Int64(a);
+ auto b = get<Int64>(field_Int64);
+
+ EXPECT_EQ("Int64", field_Int64.get_type_name());
+ EXPECT_EQ(a, b);
+}
+
+// Int128
+TEST(FieldTest, Test_Field_Int128) {
+ Int128 a = (1ULL << 63);
+ a = a * a + 114514;
+
+ Field field_Int128(a);
+ auto b = get<Int128>(field_Int128);
+
+ EXPECT_EQ("Int128", field_Int128.get_type_name());
+ EXPECT_EQ(a, b);
+}
+
+// Float64
+TEST(FieldTest, Test_Field_Float64) {
+ constexpr Float64 a = 1.2e154;
+
+ Field field_Float64(a);
+ auto b = get<Float64>(field_Float64);
+
+ EXPECT_EQ("Float64", field_Float64.get_type_name());
+ EXPECT_EQ(a, b);
+}
+
+// String
+TEST(FieldTest, Test_Field_String) {
+ const String a(("114514"));
+
+ Field field_String(a);
+ auto b = get<String>(field_String);
+
+ EXPECT_EQ("String", field_String.get_type_name());
+ EXPECT_EQ(a, b);
+}
+
+// Decimal32
+TEST(FieldTest, Test_Field_Decimal32) {
+ constexpr Int32 val1 = 114514, val2 = 554514;
+ DecimalField<Decimal32> a(val1, UInt32(3));
+ DecimalField<Decimal32> aa(val2, UInt32(3));
+
+ Field field_Decimal32(a);
+ auto b = get<DecimalField<Decimal32>>(field_Decimal32);
+
+ EXPECT_EQ("Decimal32", field_Decimal32.get_type_name());
+ EXPECT_EQ(Int32(114514), a.get_value());
+ EXPECT_EQ(UInt32(3), a.get_scale());
+ EXPECT_EQ(a, b);
+ EXPECT_LE(a, aa);
+}
+
+/*
+需要补位，所以会导致溢出
+非法case，需要保证scale相同才能比较大小关系
+*/
+// Decimal64
+TEST(FieldTest, Test_Field_Decimal64) {
+ constexpr Int64 val1 = 114514e12, val2 = 554514e12;
Review Comment:
check the string value of decimal<type> and datetype
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