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https://github.com/ClickHouse/ClickHouse.git
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97f2a2213e
* Move some code outside dbms/src folder * Fix paths
60 lines
1.3 KiB
C++
60 lines
1.3 KiB
C++
#pragma once
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#include <mutex>
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#include <unordered_set>
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#include <Databases/DatabasesCommon.h>
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#include <Databases/IDatabase.h>
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#include <Storages/IStorage_fwd.h>
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namespace Poco
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{
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class Logger;
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}
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namespace DB
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{
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/* Database to store StorageDictionary tables
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* automatically creates tables for all dictionaries
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*/
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class DatabaseDictionary final : public IDatabase
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{
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public:
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DatabaseDictionary(const String & name_);
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String getEngineName() const override
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{
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return "Dictionary";
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}
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bool isTableExist(
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const Context & context,
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const String & table_name) const override;
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StoragePtr tryGetTable(
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const Context & context,
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const String & table_name) const override;
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DatabaseTablesIteratorPtr getTablesIterator(const Context & context, const FilterByNameFunction & filter_by_table_name) override;
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bool empty(const Context & context) const override;
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ASTPtr getCreateDatabaseQuery(const Context & context) const override;
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void shutdown() override;
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protected:
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ASTPtr getCreateTableQueryImpl(const Context & context, const String & table_name, bool throw_on_error) const override;
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private:
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mutable std::mutex mutex;
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Poco::Logger * log;
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Tables listTables(const Context & context, const FilterByNameFunction & filter_by_name);
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};
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}
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