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777b5bc15b
... IStorage has deleted copy ctor / assignment already
73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
#pragma once
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#include "config_core.h"
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#if USE_MYSQL
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#include <Storages/IStorage.h>
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#include <Storages/MySQL/MySQLSettings.h>
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#include <Storages/ExternalDataSourceConfiguration.h>
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#include <mysqlxx/PoolWithFailover.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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/** Implements storage in the MySQL database.
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* Use ENGINE = mysql(host_port, database_name, table_name, user_name, password)
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* Read only.
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*/
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class StorageMySQL final : public IStorage, WithContext
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{
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public:
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StorageMySQL(
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const StorageID & table_id_,
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mysqlxx::PoolWithFailover && pool_,
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const std::string & remote_database_name_,
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const std::string & remote_table_name_,
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bool replace_query_,
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const std::string & on_duplicate_clause_,
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const ColumnsDescription & columns_,
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const ConstraintsDescription & constraints_,
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const String & comment,
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ContextPtr context_,
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const MySQLSettings & mysql_settings_);
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std::string getName() const override { return "MySQL"; }
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Pipe read(
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const Names & column_names,
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const StorageSnapshotPtr & storage_snapshot,
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SelectQueryInfo & query_info,
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ContextPtr context,
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QueryProcessingStage::Enum processed_stage,
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size_t max_block_size,
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unsigned num_streams) override;
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SinkToStoragePtr write(const ASTPtr & query, const StorageMetadataPtr & /*metadata_snapshot*/, ContextPtr context) override;
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static StorageMySQLConfiguration getConfiguration(ASTs engine_args, ContextPtr context_, MySQLBaseSettings & storage_settings);
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private:
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friend class StorageMySQLSink;
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std::string remote_database_name;
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std::string remote_table_name;
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bool replace_query;
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std::string on_duplicate_clause;
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MySQLSettings mysql_settings;
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mysqlxx::PoolWithFailoverPtr pool;
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Poco::Logger * log;
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};
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}
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#endif
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