2013-02-07 13:40:59 +00:00
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#pragma once
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#include <DB/Storages/StorageChunks.h>
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namespace DB
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{
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/** Ссылка на кусок данных в таблице типа Chunks.
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* Запись не поддерживается.
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*/
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class StorageChunkRef : public IStorage
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{
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public:
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2013-06-15 03:33:45 +00:00
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static StoragePtr create(const std::string & name_, const Context & context_, const std::string & source_database_name_, const std::string & source_table_name_, bool attach);
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2013-02-07 13:40:59 +00:00
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std::string getName() const { return "ChunkRef"; }
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std::string getTableName() const { return name; }
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2013-06-15 03:33:45 +00:00
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const NamesAndTypesList & getColumnsList() const { return getSource().getColumnsList(); }
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2013-02-07 13:40:59 +00:00
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BlockInputStreams read(
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const Names & column_names,
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ASTPtr query,
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const Settings & settings,
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QueryProcessingStage::Enum & processed_stage,
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size_t max_block_size = DEFAULT_BLOCK_SIZE,
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unsigned threads = 1);
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2013-06-17 07:01:31 +00:00
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ASTPtr getCustomCreateQuery(const Context & context) const;
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2013-02-07 13:40:59 +00:00
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void dropImpl();
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2013-02-08 17:06:29 +00:00
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String source_database_name;
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String source_table_name;
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2013-02-07 13:40:59 +00:00
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private:
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String name;
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2013-05-05 18:02:05 +00:00
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const Context & context;
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2013-02-07 13:40:59 +00:00
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2013-06-15 03:33:45 +00:00
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StorageChunkRef(const std::string & name_, const Context & context_, const std::string & source_database_name_, const std::string & source_table_name_, bool attach);
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/// TODO: может быть, можно просто хранить указатель на родительскую таблицу?
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StorageChunks & getSource();
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const StorageChunks & getSource() const;
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2013-02-07 13:40:59 +00:00
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};
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}
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