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Updated implementation

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This commit is contained in:
Maksim Kita 2021-03-17 20:14:36 +03:00
parent 3d1c42827b
commit bc22f4f6eb
9 changed files with 198 additions and 384 deletions
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253
src/Common/HashTable/FixedDeadlineHashMap.h
View File

@ -1,253 +0,0 @@
#pragma once
#include <chrono>
#include <type_traits>
#include <Common/HashTable/HashMap.h>
#include <Common/BitHelpers.h>
using TimePoint = std::chrono::system_clock::time_point;
template <typename TKey, typename TMapped, typename Hash, bool save_hash_in_cell>
struct DeadlineCell :
public std::conditional_t<save_hash_in_cell,
HashMapCellWithSavedHash<TKey, TMapped, Hash, HashTableNoState>,
HashMapCell<TKey, TMapped, Hash, HashTableNoState>>
{
using Key = TKey;
using Base = std::conditional_t<save_hash_in_cell,
HashMapCellWithSavedHash<TKey, TMapped, Hash, HashTableNoState>,
HashMapCell<TKey, TMapped, Hash, HashTableNoState>>;
using Mapped = typename Base::Mapped;
using State = typename Base::State;
using mapped_type = Mapped;
using key_type = Key;
using Base::Base;
inline TimePoint getDeadline() const { return deadline; }
void setDeadline(TimePoint & deadline_value) { deadline = deadline_value; }
private:
TimePoint deadline;
};
template <typename TKey, typename TValue, typename Disposer, typename Hash, bool save_hash_in_cells>
class FixedDeadlineHashMapImpl :
private HashMapTable<
TKey,
DeadlineCell<TKey, TValue, Hash, save_hash_in_cells>,
Hash,
HashTableGrower<>,
HashTableAllocator>
{
/// TODO: Make custom grower
using Base = HashMapTable<
TKey,
DeadlineCell<TKey, TValue, Hash, save_hash_in_cells>,
Hash,
HashTableGrower<>,
HashTableAllocator>;
static size_t calculateMaxSize(size_t max_size, size_t max_collision_resolution_chain)
{
return roundUpToPowerOfTwoOrZero(std::max(max_size, max_collision_resolution_chain));
}
public:
using Cell = DeadlineCell<TKey, TValue, Hash, save_hash_in_cells>;
using Key = TKey;
using Value = TValue;
using Mapped = typename Cell::Mapped;
explicit FixedDeadlineHashMapImpl(size_t max_size_, size_t max_collision_resolution_chain_, Disposer disposer_ = Disposer())
: Base(calculateMaxSize(max_size_, max_collision_resolution_chain_))
, max_collision_resolution_chain(max_collision_resolution_chain_)
, max_size(max_size_)
, disposer(std::move(disposer_))
{
assert(max_size > 0);
assert(max_collision_resolution_chain > 0);
}
~FixedDeadlineHashMapImpl()
{
clear();
}
Cell * get(const Key & key)
{
if (Cell::isZero(key, *this))
return this->hasZero() ? this->zeroValue() : nullptr;
/// TODO: Optimize
size_t hash_value = Base::hash(key);
size_t place_value = Base::grower.place(hash_value);
size_t resolution_chain = max_collision_resolution_chain;
while (resolution_chain != 0)
{
auto & cell = Base::buf[place_value];
if (cell.isZero(*this))
return nullptr;
if (cell.keyEquals(key, hash_value, *this))
return &cell;
place_value = Base::grower.next(place_value);
--resolution_chain;
}
return nullptr;
}
const Cell * get(const Key & key) const
{
return const_cast<std::decay_t<decltype(*this)> *>(this)->get(key);
}
std::pair<Cell *, bool> ALWAYS_INLINE insert(const Key & key, const Value & value)
{
return emplace(key, value);
}
std::pair<Cell *, bool> ALWAYS_INLINE insert(const Key & key, Value && value)
{
return emplace(key, std::move(value));
}
template<typename ...Args>
std::pair<Cell *, bool> ALWAYS_INLINE emplace(const Key & key, Args && ... args)
{
size_t hash_value = Base::hash(key);
std::pair<Cell *, bool> result;
if (!emplaceIfZero(key, hash_value, result))
result = emplaceNonZeroImpl(key, hash_value);
bool was_inserted = result.second;
if (was_inserted)
new (&result.first->getMapped()) Value(std::forward<Args>(args)...);
return result;
}
template <typename ...Args>
void reinsert(Cell * place_to_use, const Key & key, Args && ... args)
{
size_t hash_value = Base::hash(key);
new (place_to_use) Cell(key, *this);
new (&place_to_use->getMapped()) Value(std::forward<Args>(args)...);
place_to_use->setHash(hash_value);
}
using Base::size;
using iterator = typename Base::iterator;
using const_iterator = typename Base::const_iterator;
using Base::begin;
using Base::end;
size_t getMaxSize() const { return max_size; }
size_t getSizeInBytes() const { return Base::getBufferSizeInBytes(); }
void clear()
{
for (auto & cell : *this)
disposer(cell.getKey(), cell.getMapped());
}
private:
size_t max_collision_resolution_chain;
size_t max_size;
Disposer disposer;
bool emplaceIfZero(const Key & key, size_t hash_value, std::pair<Cell *, bool> & result)
{
if (!Cell::isZero(key, *this))
return false;
if (this->hasZero())
{
result = {this->zeroValue(), false};
return true;
}
++Base::m_size;
this->setHasZero();
this->zeroValue()->setHash(hash_value);
result = {this->zeroValue(), true};
return true;
}
std::pair<Cell *, bool> emplaceNonZeroImpl(const Key & key, size_t hash_value)
{
TimePoint oldest_time = TimePoint::max();
size_t place_value = Base::grower.place(hash_value);
size_t resolution_chain = max_collision_resolution_chain;
bool use_old_value_place = false;
Cell * place_to_insert = nullptr;
while (resolution_chain != 0)
{
auto & cell = Base::buf[place_value];
if (cell.isZero(*this))
{
use_old_value_place = false;
place_to_insert = &cell;
break;
}
if (cell.keyEquals(key, hash_value, *this))
return std::make_pair(&cell, false);
if (cell.getDeadline() < oldest_time)
{
use_old_value_place = true;
place_to_insert = &cell;
}
place_value = Base::grower.next(place_value);
--resolution_chain;
}
if (!place_to_insert)
place_to_insert = &Base::buf[place_value];
if (use_old_value_place)
return std::make_pair(place_to_insert, false);
else
{
++Base::m_size;
new (place_to_insert) Cell(key, *this);
place_to_insert->setHash(hash_value);
return std::make_pair(place_to_insert, true);
}
}
};
template <typename Key, typename Mapped>
struct DefaultFixedHashMapCellDisposer
{
void operator()(const Key &, const Mapped &) const {}
};
template <typename Key, typename Value, typename Disposer = DefaultFixedHashMapCellDisposer<Key, Value>, typename Hash = DefaultHash<Key>>
using FixedDeadlineHashMap = FixedDeadlineHashMapImpl<Key, Value, Disposer, Hash, false>;
template <typename Key, typename Value, typename Disposer = DefaultFixedHashMapCellDisposer<Key, Value>, typename Hash = DefaultHash<Key>>
using FixedDeadlineHashMapWithSavedHash = FixedDeadlineHashMapImpl<Key, Value, Disposer, Hash, true>;

12
src/Dictionaries/CacheDictionary.cpp
View File

@ -332,10 +332,16 @@ Columns CacheDictionary<dictionary_key_type>::getColumnsImpl(
FetchResult result_of_fetch_from_storage;
{
/// Write lock on storage
const ProfilingScopedWriteRWLock write_lock{rw_lock, ProfileEvents::DictCacheLockWriteNs};
bool protect_get_with_write_lock = cache_storage_ptr->canPerformFetchByMultipleThreadsWithoutLock();
if (protect_get_with_write_lock)
{
const ProfilingScopedReadRWLock write_lock{rw_lock, ProfileEvents::DictCacheLockWriteNs};
result_of_fetch_from_storage = cache_storage_ptr->fetchColumnsForKeys(keys, request);
}
else
{
const ProfilingScopedWriteRWLock write_lock{rw_lock, ProfileEvents::DictCacheLockWriteNs};
result_of_fetch_from_storage = cache_storage_ptr->fetchColumnsForKeys(keys, request);
}

293
src/Dictionaries/CacheDictionaryStorage.h
View File

@ -4,14 +4,11 @@
#include <variant>
#include <pcg_random.hpp>
#include <absl/container/flat_hash_map.h>
#include <absl/container/flat_hash_set.h>
#include <Common/randomSeed.h>
#include <Common/Arena.h>
#include <Common/ArenaWithFreeLists.h>
#include <Common/HashTable/LRUHashMap.h>
#include <Common/HashTable/FixedDeadlineHashMap.h>
#include <Dictionaries/DictionaryStructure.h>
#include <Dictionaries/ICacheDictionaryStorage.h>
#include <Dictionaries/DictionaryHelpers.h>
@ -38,6 +35,9 @@ struct CacheDictionaryStorageConfiguration
template <DictionaryKeyType dictionary_key_type>
class CacheDictionaryStorage final : public ICacheDictionaryStorage
{
static constexpr size_t max_collision_length = 10;
public:
using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::simple, UInt64, StringRef>;
static_assert(dictionary_key_type != DictionaryKeyType::range, "Range key type is not supported by CacheDictionaryStorage");
@ -47,13 +47,19 @@ public:
CacheDictionaryStorageConfiguration & configuration_)
: configuration(configuration_)
, rnd_engine(randomSeed())
, cache(configuration.max_size_in_cells, 10, { *this })
{
size_t cells_size = roundUpToPowerOfTwoOrZero(std::max(configuration.max_size_in_cells, max_collision_length));
cells.resize_fill(cells_size);
size_overlap_mask = cells_size - 1;
setup(dictionary_structure);
}
bool returnsFetchedColumnsInOrderOfRequestedKeys() const override { return true; }
bool canPerformFetchByMultipleThreadsWithoutLock() const override { return true; }
String getName() const override
{
if (dictionary_key_type == DictionaryKeyType::simple)
@ -134,9 +140,9 @@ public:
throw Exception("Method getCachedComplexKeys is not supported for simple key storage", ErrorCodes::NOT_IMPLEMENTED);
}
size_t getSize() const override { return cache.size(); }
size_t getSize() const override { return size; }
size_t getMaxSize() const override { return cache.getMaxSize(); }
size_t getMaxSize() const override { return configuration.max_size_in_cells; }
size_t getBytesAllocated() const override
{
@ -151,7 +157,7 @@ public:
});
}
return arena.size() + cache.getSizeInBytes() + attributes_size_in_bytes;
return arena.size() + sizeof(Cell) * configuration.max_size_in_cells + attributes_size_in_bytes;
}
private:
@ -175,9 +181,9 @@ private:
KeysStorageFetchResult result;
result.fetched_columns = fetch_request.makeAttributesResultColumns();
result.key_index_to_state.resize_fill(keys.size(), {KeyState::not_found});
result.key_index_to_state.resize_fill(keys.size());
const auto now = std::chrono::system_clock::now();
const time_t now = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
size_t fetched_columns_index = 0;
size_t keys_size = keys.size();
@ -190,54 +196,39 @@ private:
for (size_t key_index = 0; key_index < keys_size; ++key_index)
{
auto key = keys[key_index];
auto * it = cache.get(key);
auto [key_state, cell_index] = getKeyStateAndCellIndex(key, now);
if (!it)
if (unlikely(key_state == KeyState::not_found))
{
result.key_index_to_state[key_index] = {KeyState::not_found};
++result.not_found_keys_size;
continue;
}
auto deadline = it->getDeadline();
const auto & cell = it->getMapped();
auto & cell = cells[cell_index];
if (now > deadline + max_lifetime_seconds)
{
result.key_index_to_state[key_index] = {KeyState::not_found};
++result.not_found_keys_size;
continue;
}
bool cell_is_expired = false;
KeyState::State key_state = KeyState::found;
if (now > deadline)
{
cell_is_expired = true;
key_state = KeyState::expired;
}
result.expired_keys_size += static_cast<size_t>(key_state == KeyState::expired);
result.key_index_to_state[key_index] = {key_state, fetched_columns_index};
++fetched_columns_index;
fetched_keys[fetched_columns_index] = FetchedKey(cell.element_index, cell.is_default);
result.expired_keys_size += cell_is_expired;
result.found_keys_size += !cell_is_expired;
++fetched_columns_index;
result.key_index_to_state[key_index].setDefaultValue(cell.is_default);
result.default_keys_size += cell.is_default;
fetched_keys[key_index] = FetchedKey{cell.element_index, cell.is_default};
}
result.found_keys_size = keys_size - (result.expired_keys_size + result.not_found_keys_size);
for (size_t attribute_index = 0; attribute_index < fetch_request.attributesSize(); ++attribute_index)
{
if (!fetch_request.shouldFillResultColumnWithIndex(attribute_index))
continue;
size_t fetched_keys_size = fetched_keys.size();
auto & attribute = attributes[attribute_index];
const auto & default_value_provider = fetch_request.defaultValueProviderAtIndex(attribute_index);
size_t fetched_keys_size = fetched_keys.size();
auto & fetched_column = *result.fetched_columns[attribute_index];
fetched_column.reserve(fetched_keys_size);
@ -245,7 +236,7 @@ private:
{
auto & container = std::get<std::vector<Field>>(attribute.attribute_container);
for (size_t fetched_key_index = 0; fetched_key_index < fetched_keys.size(); ++fetched_key_index)
for (size_t fetched_key_index = 0; fetched_key_index < fetched_columns_index; ++fetched_key_index)
{
auto fetched_key = fetched_keys[fetched_key_index];
@ -272,7 +263,7 @@ private:
if constexpr (std::is_same_v<ColumnType, ColumnString>)
{
for (size_t fetched_key_index = 0; fetched_key_index < fetched_keys.size(); ++fetched_key_index)
for (size_t fetched_key_index = 0; fetched_key_index < fetched_columns_index; ++fetched_key_index)
{
auto fetched_key = fetched_keys[fetched_key_index];
@ -287,7 +278,7 @@ private:
}
else
{
for (size_t fetched_key_index = 0; fetched_key_index < fetched_keys.size(); ++fetched_key_index)
for (size_t fetched_key_index = 0; fetched_key_index < fetched_columns_index; ++fetched_key_index)
{
auto fetched_key = fetched_keys[fetched_key_index];
auto & data = column_typed.getData();
@ -314,23 +305,27 @@ private:
{
const auto now = std::chrono::system_clock::now();
size_t keys_size = keys.size();
size_t columns_size = columns.size();
Field column_value;
for (size_t key_index = 0; key_index < keys_size; ++key_index)
for (size_t key_index = 0; key_index < keys.size(); ++key_index)
{
auto key = keys[key_index];
auto [it, was_inserted] = cache.insert(key, {});
size_t cell_index = getCellIndexForInsert(key);
auto & cell = cells[cell_index];
cell.is_default = false;
bool was_inserted = cell.deadline == 0;
if (was_inserted)
{
auto & cell = it->getMapped();
cell.is_default = false;
if constexpr (std::is_same_v<KeyType, StringRef>)
cell.key = copyStringInArena(key);
else
cell.key = key;
for (size_t attribute_index = 0; attribute_index < columns_size; ++attribute_index)
for (size_t attribute_index = 0; attribute_index < columns.size(); ++attribute_index)
{
auto & column = columns[attribute_index];
@ -347,38 +342,36 @@ private:
container.back() = column_value;
else if constexpr (std::is_same_v<ElementType, StringRef>)
{
const String & value = column_value.get<String>();
StringRef inserted_value = copyStringInArena(StringRef { value.data(), value.size() });
const String & string_value = column_value.get<String>();
StringRef string_value_ref = StringRef {string_value.data(), string_value.size()};
StringRef inserted_value = copyStringInArena(string_value_ref);
container.back() = inserted_value;
}
else
container.back() = column_value.get<ElementType>();
container.back() = column_value.get<NearestFieldType<ElementType>>();
});
}
++size;
}
else
{
auto & cell_key = it->getKey();
Cell cell;
size_t existing_index = it->getMapped().element_index;
cell.element_index = existing_index;
cell.is_default = false;
if (cell_key != key)
if (cell.key != key)
{
/// In case of complex key we keep it in arena
if constexpr (std::is_same_v<KeyType, StringRef>)
arena.free(const_cast<char *>(key.data), key.size);
{
char * data = const_cast<char *>(cell.key.data);
arena.free(data, cell.key.size);
cell.key = copyStringInArena(key);
}
else
cell.key = key;
}
cache.reinsert(it, key, cell);
/// Put values into existing index
size_t index_to_use = cell.element_index;
/// Put values into index
for (size_t attribute_index = 0; attribute_index < columns_size; ++attribute_index)
for (size_t attribute_index = 0; attribute_index < columns.size(); ++attribute_index)
{
auto & column = columns[attribute_index];
@ -389,20 +382,26 @@ private:
column->get(key_index, column_value);
if constexpr (std::is_same_v<ElementType, Field>)
container[existing_index] = column_value;
container[index_to_use] = column_value;
else if constexpr (std::is_same_v<ElementType, StringRef>)
{
const String & value = column_value.get<String>();
StringRef inserted_value = copyStringInArena(StringRef { value.data(), value.size() });
container[existing_index] = inserted_value;
const String & string_value = column_value.get<String>();
StringRef string_ref_value = StringRef {string_value.data(), string_value.size()};
StringRef inserted_value = copyStringInArena(string_ref_value);
StringRef previous_value = container[index_to_use];
char * data = const_cast<char *>(previous_value.data);
arena.free(data, previous_value.size);
container[index_to_use] = inserted_value;
}
else
container[existing_index] = column_value.get<ElementType>();
container[index_to_use] = column_value.get<NearestFieldType<ElementType>>();
});
}
}
setCellDeadline(*it, now);
setCellDeadline(cell, now);
}
}
@ -416,55 +415,64 @@ private:
{
auto key = keys[key_index];
Cell value;
value.is_default = true;
size_t cell_index = getCellIndexForInsert(key);
auto & cell = cells[cell_index];
auto [it, was_inserted] = cache.insert(key, value);
bool was_inserted = cell.deadline == 0;
cell.is_default = true;
if (was_inserted)
{
auto & cell = it->getMapped();
if constexpr (std::is_same_v<KeyType, StringRef>)
cell.key = copyStringInArena(key);
else
cell.key = key;
for (size_t attribute_index = 0; attribute_index < attributes.size(); ++attribute_index)
{
getAttributeContainer(attribute_index, [&](auto & container)
{
container.emplace_back();
cell.element_index = container.size();
cell.element_index = container.size() - 1;
});
}
++size;
}
else
{
value.element_index = it->getMapped().element_index;
if (it->getKey() != key)
if (cell.key != key)
{
/// In case of complex key we keep it in arena
if constexpr (std::is_same_v<KeyType, StringRef>)
arena.free(const_cast<char *>(key.data), key.size);
{
char * data = const_cast<char *>(cell.key.data);
arena.free(data, cell.key.size);
cell.key = copyStringInArena(key);
}
else
cell.key = key;
}
}
cache.reinsert(it, key, value);
}
setCellDeadline(*it, now);
setCellDeadline(cell, now);
}
}
PaddedPODArray<KeyType> getCachedKeysImpl() const
{
PaddedPODArray<KeyType> result;
result.reserve(cache.size());
result.reserve(size);
for (auto & node : cache)
for (auto cell : cells)
{
auto & cell = node.getMapped();
if (cell.deadline == 0)
continue;
if (cell.is_default)
continue;
result.emplace_back(node.getKey());
result.emplace_back(cell.key);
}
return result;
@ -545,18 +553,16 @@ private:
}
}
using TimePoint = std::chrono::system_clock::time_point;
struct Cell
{
KeyType key;
size_t element_index;
bool is_default;
time_t deadline;
};
CacheDictionaryStorageConfiguration configuration;
ArenaWithFreeLists arena;
pcg64 rnd_engine;
struct Attribute
{
AttributeUnderlyingType type;
@ -581,38 +587,28 @@ private:
std::vector<Field>> attribute_container;
};
class CacheStorageCellDisposer
{
public:
CacheDictionaryStorage & storage;
CacheDictionaryStorageConfiguration configuration;
template <typename Key, typename Value>
void operator()(const Key & key, const Value &) const
{
/// In case of complex key we keep it in arena
if constexpr (std::is_same_v<Key, StringRef>)
storage.arena.free(const_cast<char *>(key.data), key.size);
}
};
pcg64 rnd_engine;
using SimpleFixedDeadlineHashMap = FixedDeadlineHashMap<UInt64, Cell, CacheStorageCellDisposer>;
using ComplexFixedDeadlineHashMap = FixedDeadlineHashMap<StringRef, Cell, CacheStorageCellDisposer>;
size_t size_overlap_mask = 0;
using FixedDeadlineHashMap = std::conditional_t<
dictionary_key_type == DictionaryKeyType::simple,
SimpleFixedDeadlineHashMap,
ComplexFixedDeadlineHashMap>;
size_t size = 0;
using FixedDeadlineHashMapCell = typename FixedDeadlineHashMap::Cell;
PaddedPODArray<Cell> cells;
inline void setCellDeadline(FixedDeadlineHashMapCell & cell, TimePoint now)
ArenaWithFreeLists arena;
std::vector<Attribute> attributes;
inline void setCellDeadline(Cell & cell, TimePoint now)
{
if (configuration.lifetime.min_sec == 0 && configuration.lifetime.max_sec == 0)
{
/// This maybe not obvious, but when we define is this cell is expired or expired permanently, we add strict_max_lifetime_seconds
/// to the expiration time. And it overflows pretty well.
auto deadline = std::chrono::time_point<std::chrono::system_clock>::max() - 2 * std::chrono::seconds(configuration.strict_max_lifetime_seconds);
cell.setDeadline(deadline);
cell.deadline = std::chrono::system_clock::to_time_t(deadline);
return;
}
@ -622,12 +618,73 @@ private:
std::uniform_int_distribution<UInt64> distribution{min_sec_lifetime, max_sec_lifetime};
auto deadline = now + std::chrono::seconds(distribution(rnd_engine));
cell.setDeadline(deadline);
cell.deadline = std::chrono::system_clock::to_time_t(deadline);
}
FixedDeadlineHashMap cache;
inline size_t getCellIndex(const KeyType key) const
{
const size_t hash = DefaultHash<KeyType>()(key);
const size_t index = hash & size_overlap_mask;
return index;
}
std::vector<Attribute> attributes;
using KeyStateAndCellIndex = std::pair<KeyState::State, size_t>;
inline KeyStateAndCellIndex getKeyStateAndCellIndex(const KeyType key, const time_t now) const
{
size_t place_value = getCellIndex(key);
const size_t place_value_end = place_value + max_collision_length;
time_t max_lifetime_seconds = static_cast<time_t>(configuration.strict_max_lifetime_seconds);
for (; place_value < place_value_end; ++place_value)
{
const auto cell_place_value = place_value & size_overlap_mask;
const auto & cell = cells[cell_place_value];
if (cell.key != key)
continue;
if (unlikely(now > cell.deadline + max_lifetime_seconds))
return std::make_pair(KeyState::not_found, cell_place_value);
if (unlikely(now > cell.deadline))
return std::make_pair(KeyState::expired, cell_place_value);
return std::make_pair(KeyState::found, cell_place_value);
}
return std::make_pair(KeyState::not_found, place_value);
}
inline size_t getCellIndexForInsert(const KeyType & key) const
{
size_t place_value = getCellIndex(key);
const size_t place_value_end = place_value + max_collision_length;
size_t oldest_place_value = place_value;
time_t oldest_time = std::numeric_limits<time_t>::max();
for (; place_value < place_value_end; ++place_value)
{
const size_t cell_place_value = place_value & size_overlap_mask;
const Cell cell = cells[cell_place_value];
if (cell.deadline == 0)
return cell_place_value;
if (cell.key == key)
return place_value;
if (cell.deadline < oldest_time)
{
oldest_time = cell.deadline;
oldest_place_value = cell_place_value;
}
}
return oldest_place_value;
}
};
}

8
src/Dictionaries/ICacheDictionaryStorage.h
View File

@ -12,9 +12,9 @@ struct KeyState
{
enum State: uint8_t
{
not_found = 2,
expired = 4,
found = 8,
not_found = 0,
expired = 1,
found = 2,
};
KeyState(State state_, size_t fetched_column_index_)
@ -72,6 +72,8 @@ public:
/// Necessary if all keys are found we can return result to client without additional aggregation
virtual bool returnsFetchedColumnsInOrderOfRequestedKeys() const = 0;
virtual bool canPerformFetchByMultipleThreadsWithoutLock() const = 0;
/// Name of storage
virtual String getName() const = 0;

2
src/Dictionaries/SSDCacheDictionaryStorage.h
View File

@ -815,6 +815,8 @@ public:
bool returnsFetchedColumnsInOrderOfRequestedKeys() const override { return false; }
bool canPerformFetchByMultipleThreadsWithoutLock() const override { return false; }
String getName() const override
{
if (dictionary_key_type == DictionaryKeyType::simple)

4
tests/queries/0_stateless/01681_cache_dictionary_simple_key.sql
View File

@ -40,7 +40,7 @@ SELECT dictGetOrDefault('01681_database_for_cache_dictionary.cache_dictionary_si
SELECT 'dictHas';
SELECT dictHas('01681_database_for_cache_dictionary.cache_dictionary_simple_key_simple_attributes', number) FROM system.numbers LIMIT 4;
SELECT 'select all values as input stream';
SELECT * FROM 01681_database_for_cache_dictionary.cache_dictionary_simple_key_simple_attributes;
SELECT * FROM 01681_database_for_cache_dictionary.cache_dictionary_simple_key_simple_attributes ORDER BY id;
DROP DICTIONARY 01681_database_for_cache_dictionary.cache_dictionary_simple_key_simple_attributes;
DROP TABLE 01681_database_for_cache_dictionary.simple_key_simple_attributes_source_table;
@ -84,7 +84,7 @@ SELECT dictGetOrDefault('01681_database_for_cache_dictionary.cache_dictionary_si
SELECT 'dictHas';
SELECT dictHas('01681_database_for_cache_dictionary.cache_dictionary_simple_key_complex_attributes', number) FROM system.numbers LIMIT 4;
SELECT 'select all values as input stream';
SELECT * FROM 01681_database_for_cache_dictionary.cache_dictionary_simple_key_complex_attributes;
SELECT * FROM 01681_database_for_cache_dictionary.cache_dictionary_simple_key_complex_attributes ORDER BY id;
DROP DICTIONARY 01681_database_for_cache_dictionary.cache_dictionary_simple_key_complex_attributes;
DROP TABLE 01681_database_for_cache_dictionary.simple_key_complex_attributes_source_table;

4
tests/queries/0_stateless/01682_cache_dictionary_complex_key.sql
View File

@ -42,7 +42,7 @@ SELECT dictGetOrDefault('01682_database_for_cache_dictionary.cache_dictionary_co
SELECT 'dictHas';
SELECT dictHas('01682_database_for_cache_dictionary.cache_dictionary_complex_key_simple_attributes', (number, concat('id_key_', toString(number)))) FROM system.numbers LIMIT 4;
SELECT 'select all values as input stream';
SELECT * FROM 01682_database_for_cache_dictionary.cache_dictionary_complex_key_simple_attributes;
SELECT * FROM 01682_database_for_cache_dictionary.cache_dictionary_complex_key_simple_attributes ORDER BY id;
DROP DICTIONARY 01682_database_for_cache_dictionary.cache_dictionary_complex_key_simple_attributes;
DROP TABLE 01682_database_for_cache_dictionary.complex_key_simple_attributes_source_table;
@ -89,7 +89,7 @@ SELECT dictGetOrDefault('01682_database_for_cache_dictionary.cache_dictionary_co
SELECT 'dictHas';
SELECT dictHas('01682_database_for_cache_dictionary.cache_dictionary_complex_key_complex_attributes', (number, concat('id_key_', toString(number)))) FROM system.numbers LIMIT 4;
SELECT 'select all values as input stream';
SELECT * FROM 01682_database_for_cache_dictionary.cache_dictionary_complex_key_complex_attributes;
SELECT * FROM 01682_database_for_cache_dictionary.cache_dictionary_complex_key_complex_attributes ORDER BY id;
DROP DICTIONARY 01682_database_for_cache_dictionary.cache_dictionary_complex_key_complex_attributes;
DROP TABLE 01682_database_for_cache_dictionary.complex_key_complex_attributes_source_table;

4
tests/queries/0_stateless/01684_ssd_cache_dictionary_simple_key.sql
View File

@ -40,7 +40,7 @@ SELECT dictGetOrDefault('01684_database_for_cache_dictionary.cache_dictionary_si
SELECT 'dictHas';
SELECT dictHas('01684_database_for_cache_dictionary.cache_dictionary_simple_key_simple_attributes', number) FROM system.numbers LIMIT 4;
SELECT 'select all values as input stream';
SELECT * FROM 01684_database_for_cache_dictionary.cache_dictionary_simple_key_simple_attributes;
SELECT * FROM 01684_database_for_cache_dictionary.cache_dictionary_simple_key_simple_attributes ORDER BY id;
DROP DICTIONARY 01684_database_for_cache_dictionary.cache_dictionary_simple_key_simple_attributes;
DROP TABLE 01684_database_for_cache_dictionary.simple_key_simple_attributes_source_table;
@ -84,7 +84,7 @@ SELECT dictGetOrDefault('01684_database_for_cache_dictionary.cache_dictionary_si
SELECT 'dictHas';
SELECT dictHas('01684_database_for_cache_dictionary.cache_dictionary_simple_key_complex_attributes', number) FROM system.numbers LIMIT 4;
SELECT 'select all values as input stream';
SELECT * FROM 01684_database_for_cache_dictionary.cache_dictionary_simple_key_complex_attributes;
SELECT * FROM 01684_database_for_cache_dictionary.cache_dictionary_simple_key_complex_attributes ORDER BY id;
DROP DICTIONARY 01684_database_for_cache_dictionary.cache_dictionary_simple_key_complex_attributes;
DROP TABLE 01684_database_for_cache_dictionary.simple_key_complex_attributes_source_table;

4
tests/queries/0_stateless/01685_ssd_cache_dictionary_complex_key.sql
View File

@ -42,7 +42,7 @@ SELECT dictGetOrDefault('01685_database_for_cache_dictionary.cache_dictionary_co
SELECT 'dictHas';
SELECT dictHas('01685_database_for_cache_dictionary.cache_dictionary_complex_key_simple_attributes', (number, concat('id_key_', toString(number)))) FROM system.numbers LIMIT 4;
SELECT 'select all values as input stream';
SELECT * FROM 01685_database_for_cache_dictionary.cache_dictionary_complex_key_simple_attributes;
SELECT * FROM 01685_database_for_cache_dictionary.cache_dictionary_complex_key_simple_attributes ORDER BY id;
DROP DICTIONARY 01685_database_for_cache_dictionary.cache_dictionary_complex_key_simple_attributes;
DROP TABLE 01685_database_for_cache_dictionary.complex_key_simple_attributes_source_table;
@ -89,7 +89,7 @@ SELECT dictGetOrDefault('01685_database_for_cache_dictionary.cache_dictionary_co
SELECT 'dictHas';
SELECT dictHas('01685_database_for_cache_dictionary.cache_dictionary_complex_key_complex_attributes', (number, concat('id_key_', toString(number)))) FROM system.numbers LIMIT 4;
SELECT 'select all values as input stream';
SELECT * FROM 01685_database_for_cache_dictionary.cache_dictionary_complex_key_complex_attributes;
SELECT * FROM 01685_database_for_cache_dictionary.cache_dictionary_complex_key_complex_attributes ORDER BY id;
DROP DICTIONARY 01685_database_for_cache_dictionary.cache_dictionary_complex_key_complex_attributes;
DROP TABLE 01685_database_for_cache_dictionary.complex_key_complex_attributes_source_table;