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use storage uuid instead of table name as a key in storage info because there are can be multiple dropped table with the same name

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This commit is contained in:
Yakov Olkhovskiy 2023-12-13 18:08:41 +00:00
parent 0ea4b16530
commit f4e2933f5d
3 changed files with 19 additions and 7 deletions
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7
src/Storages/System/StorageSystemDroppedTablesParts.cpp
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@ -36,6 +36,7 @@ StoragesDroppedInfoStream::StoragesDroppedInfoStream(const SelectQueryInfo & que
MutableColumnPtr table_column_mut = ColumnString::create();
MutableColumnPtr engine_column_mut = ColumnString::create();
MutableColumnPtr active_column_mut = ColumnUInt8::create();
MutableColumnPtr storage_uuid_column_mut = ColumnUUID::create();
const auto access = context->getAccess();
const bool check_access_for_tables = !access->isGranted(AccessType::SHOW_TABLES);
@ -47,6 +48,7 @@ StoragesDroppedInfoStream::StoragesDroppedInfoStream(const SelectQueryInfo & que
if (!storage)
continue;
UUID storage_uuid = storage->getStorageID().uuid;
String database_name = storage->getStorageID().getDatabaseName();
String table_name = storage->getStorageID().getTableName();
String engine_name = storage->getName();
@ -63,7 +65,7 @@ StoragesDroppedInfoStream::StoragesDroppedInfoStream(const SelectQueryInfo & que
if (check_access_for_tables && !access->isGranted(AccessType::SHOW_TABLES, database_name, table_name))
continue;
storages[std::make_pair(database_name, table_name)] = storage;
storages[storage_uuid] = storage;
/// Add all combinations of flag 'active'.
for (UInt64 active : {0, 1})
@ -72,6 +74,7 @@ StoragesDroppedInfoStream::StoragesDroppedInfoStream(const SelectQueryInfo & que
table_column_mut->insert(table_name);
engine_column_mut->insert(engine_name);
active_column_mut->insert(active);
storage_uuid_column_mut->insert(storage_uuid);
}
}
@ -79,6 +82,7 @@ StoragesDroppedInfoStream::StoragesDroppedInfoStream(const SelectQueryInfo & que
block_to_filter.insert(ColumnWithTypeAndName(std::move(table_column_mut), std::make_shared<DataTypeString>(), "table"));
block_to_filter.insert(ColumnWithTypeAndName(std::move(engine_column_mut), std::make_shared<DataTypeString>(), "engine"));
block_to_filter.insert(ColumnWithTypeAndName(std::move(active_column_mut), std::make_shared<DataTypeUInt8>(), "active"));
block_to_filter.insert(ColumnWithTypeAndName(std::move(storage_uuid_column_mut), std::make_shared<DataTypeUUID>(), "uuid"));
if (block_to_filter.rows())
{
@ -90,6 +94,7 @@ StoragesDroppedInfoStream::StoragesDroppedInfoStream(const SelectQueryInfo & que
database_column = block_to_filter.getByName("database").column;
table_column = block_to_filter.getByName("table").column;
active_column = block_to_filter.getByName("active").column;
storage_uuid_column = block_to_filter.getByName("uuid").column;
}

8
src/Storages/System/StorageSystemPartsBase.cpp
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@ -6,6 +6,7 @@
#include <DataTypes/DataTypesNumber.h>
#include <DataTypes/DataTypeDateTime.h>
#include <DataTypes/DataTypeDate.h>
#include <DataTypes/DataTypeUUID.h>
#include <Storages/MergeTree/MergeTreeData.h>
#include <Storages/StorageMaterializedMySQL.h>
#include <Storages/VirtualColumnUtils.h>
@ -93,6 +94,7 @@ StoragesInfoStream::StoragesInfoStream(const SelectQueryInfo & query_info, Conte
MutableColumnPtr table_column_mut = ColumnString::create();
MutableColumnPtr engine_column_mut = ColumnString::create();
MutableColumnPtr active_column_mut = ColumnUInt8::create();
MutableColumnPtr storage_uuid_column_mut = ColumnUUID::create();
const auto access = context->getAccess();
const bool check_access_for_tables = !access->isGranted(AccessType::SHOW_TABLES);
@ -139,6 +141,7 @@ StoragesInfoStream::StoragesInfoStream(const SelectQueryInfo & query_info, Conte
continue;
String engine_name = storage->getName();
UUID storage_uuid = storage->getStorageID().uuid;
#if USE_MYSQL
if (auto * proxy = dynamic_cast<StorageMaterializedMySQL *>(storage.get()))
@ -153,7 +156,7 @@ StoragesInfoStream::StoragesInfoStream(const SelectQueryInfo & query_info, Conte
if (check_access_for_tables && !access->isGranted(AccessType::SHOW_TABLES, database_name, table_name))
continue;
storages[std::make_pair(database_name, iterator->name())] = storage;
storages[storage_uuid] = storage;
/// Add all combinations of flag 'active'.
for (UInt64 active : {0, 1})
@ -161,6 +164,7 @@ StoragesInfoStream::StoragesInfoStream(const SelectQueryInfo & query_info, Conte
table_column_mut->insert(table_name);
engine_column_mut->insert(engine_name);
active_column_mut->insert(active);
storage_uuid_column_mut->insert(storage_uuid);
}
offsets[i] += 2;
@ -178,6 +182,7 @@ StoragesInfoStream::StoragesInfoStream(const SelectQueryInfo & query_info, Conte
block_to_filter.insert(ColumnWithTypeAndName(std::move(table_column_mut), std::make_shared<DataTypeString>(), "table"));
block_to_filter.insert(ColumnWithTypeAndName(std::move(engine_column_mut), std::make_shared<DataTypeString>(), "engine"));
block_to_filter.insert(ColumnWithTypeAndName(std::move(active_column_mut), std::make_shared<DataTypeUInt8>(), "active"));
block_to_filter.insert(ColumnWithTypeAndName(std::move(storage_uuid_column_mut), std::make_shared<DataTypeUUID>(), "uuid"));
if (rows)
{
@ -189,6 +194,7 @@ StoragesInfoStream::StoragesInfoStream(const SelectQueryInfo & query_info, Conte
database_column = block_to_filter.getByName("database").column;
table_column = block_to_filter.getByName("table").column;
active_column = block_to_filter.getByName("active").column;
storage_uuid_column = block_to_filter.getByName("uuid").column;
}

11
src/Storages/System/StorageSystemPartsBase.h
View File

@ -44,11 +44,11 @@ public:
info.database = (*database_column)[next_row].get<String>();
info.table = (*table_column)[next_row].get<String>();
UUID storage_uuid = (*storage_uuid_column)[next_row].get<UUID>();
auto is_same_table = [&info, this] (size_t row) -> bool
auto is_same_table = [&storage_uuid, this] (size_t row) -> bool
{
return (*database_column)[row].get<String>() == info.database &&
(*table_column)[row].get<String>() == info.table;
return (*storage_uuid_column)[row].get<UUID>() == storage_uuid;
};
/// We may have two rows per table which differ in 'active' value.
@ -61,7 +61,7 @@ public:
info.need_inactive_parts = true;
}
info.storage = storages.at(std::make_pair(info.database, info.table));
info.storage = storages.at(storage_uuid);
if (needsLock)
{
@ -94,11 +94,12 @@ protected:
ColumnPtr database_column;
ColumnPtr table_column;
ColumnPtr active_column;
ColumnPtr storage_uuid_column;
size_t next_row;
size_t rows;
using StoragesMap = std::map<std::pair<String, String>, StoragePtr>;
using StoragesMap = std::unordered_map<UUID, StoragePtr>;
StoragesMap storages;
bool needsLock = true;