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ColumnArrayT Append will move container data if it is right value #345

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merged 5 commits into from
Nov 16, 2023
Merged

ColumnArrayT Append will move container data if it is right value #345

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2da9583
ColumnArrayT Append will move container data if it is right value
1261385937 Nov 15, 2023
fd3e526
remove undesired final
1261385937 Nov 15, 2023
1ed32e4
Update array.h
Enmk Nov 15, 2023
27c38b2
Update array.h
Enmk Nov 15, 2023
af908f2
update test
Enmk Nov 16, 2023
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17 changes: 13 additions & 4 deletions clickhouse/columns/array.h
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Original file line number Diff line number Diff line change
Expand Up @@ -260,8 +260,17 @@ class ColumnArrayT : public ColumnArray {
using ColumnArray::Append;

template <typename Container>
inline void Append(const Container& container) {
Append(std::begin(container), std::end(container));
inline void Append(Container&& container) {
using container_type = decltype(container);
if constexpr (std::is_lvalue_reference_v<container_type> ||
std::is_const_v<std::remove_reference_t<container_type>>) {
Append(std::begin(container), std::end(container));
}
else {
Append(std::make_move_iterator(std::begin(container)),
std::make_move_iterator(std::end(container)));
container.clear();
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}
}

template <typename ValueType>
Expand All @@ -270,12 +279,12 @@ class ColumnArrayT : public ColumnArray {
}

template <typename Begin, typename End>
inline void Append(Begin begin, const End & end) {
inline void Append(Begin begin, End end) {
auto & nested_data = *typed_nested_data_;
size_t counter = 0;

while (begin != end) {
nested_data.Append(std::move(*begin));
nested_data.Append(*begin);
++begin;
++counter;
}
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1 change: 0 additions & 1 deletion clickhouse/columns/string.cpp
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Expand Up @@ -232,7 +232,6 @@ void ColumnString::Clear() {
items_.clear();
blocks_.clear();
append_data_.clear();
append_data_.shrink_to_fit();
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}

std::string_view ColumnString::At(size_t n) const {
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86 changes: 86 additions & 0 deletions ut/column_array_ut.cpp
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Expand Up @@ -313,3 +313,89 @@ TEST(ColumnArrayT, Wrap_UInt64_2D) {

EXPECT_TRUE(CompareRecursive(values, array));
}

TEST(ColumnArrayT, left_value_no_move) {
std::string value0 = "000000000000000000";
std::string value1 = "111111111111111111";
std::string value2 = "222222222222222222";
std::vector<std::vector<std::string>> all_values{
{ value0, value1, value2},
{ value0, value1, value2},
{ value0, value1, value2}
};
size_t origin_size = 3;
auto array = std::make_shared<clickhouse::ColumnArrayT<clickhouse::ColumnArrayT<ColumnString>>>();
array->Append(all_values);
EXPECT_EQ(3u, (*array)[0][0].size());
EXPECT_EQ(3u, (*array)[0][1].size());
EXPECT_EQ(3u, (*array)[0][2].size());

EXPECT_EQ(value0, (*array)[0][0][0]);
EXPECT_EQ(value1, (*array)[0][1][1]);
EXPECT_EQ(value2, (*array)[0][2][2]);

for (const auto& values : all_values) {
EXPECT_EQ(origin_size, values.size());
}

EXPECT_EQ(origin_size, all_values.size());
for (const auto& values : all_values) {
EXPECT_EQ(values[0], value0);
EXPECT_EQ(values[1], value1);
EXPECT_EQ(values[2], value2);
}
}

TEST(ColumnArrayT, right_value_move) {
std::string value0 = "000000000000000000";
std::string value1 = "111111111111111111";
std::string value2 = "222222222222222222";
std::vector<std::vector<std::string>> all_values{
{ value0, value1, value2},
{ value0, value1, value2},
{ value0, value1, value2}
};
auto array = std::make_shared<clickhouse::ColumnArrayT<clickhouse::ColumnArrayT<ColumnString>>>();
array->Append(std::move(all_values));
EXPECT_EQ(3u, (*array)[0][0].size());
EXPECT_EQ(3u, (*array)[0][1].size());
EXPECT_EQ(3u, (*array)[0][2].size());

EXPECT_EQ(value0, (*array)[0][0][0]);
EXPECT_EQ(value1, (*array)[0][1][1]);
EXPECT_EQ(value2, (*array)[0][2][2]);

EXPECT_EQ(0u, all_values.size());
}

TEST(ColumnArrayT, const_right_value_no_move) {
std::string value0 = "000000000000000000";
std::string value1 = "111111111111111111";
std::string value2 = "222222222222222222";
const std::vector<std::vector<std::string>> all_values{
{ value0, value1, value2},
{ value0, value1, value2},
{ value0, value1, value2}
};
size_t origin_size = 3;
auto array = std::make_shared<clickhouse::ColumnArrayT<clickhouse::ColumnArrayT<ColumnString>>>();
array->Append(std::move(all_values));
EXPECT_EQ(3u, (*array)[0][0].size());
EXPECT_EQ(3u, (*array)[0][1].size());
EXPECT_EQ(3u, (*array)[0][2].size());

EXPECT_EQ(value0, (*array)[0][0][0]);
EXPECT_EQ(value1, (*array)[0][1][1]);
EXPECT_EQ(value2, (*array)[0][2][2]);

for (const auto& values : all_values) {
EXPECT_EQ(origin_size, values.size());
}

EXPECT_EQ(origin_size, all_values.size());
for (const auto& values : all_values) {
EXPECT_EQ(values[0], value0);
EXPECT_EQ(values[1], value1);
EXPECT_EQ(values[2], value2);
}
}
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