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29 lines
758 B
C++
29 lines
758 B
C++
#pragma once
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#include <ext/shared_ptr_helper.h>
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#include <Storages/System/StorageSystemPartsBase.h>
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namespace DB
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{
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class Context;
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/** Implements system table 'parts_columns' which allows to get information about
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* columns in data parts for tables of MergeTree family.
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*/
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class StorageSystemPartsColumns final
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: public ext::shared_ptr_helper<StorageSystemPartsColumns>, public StorageSystemPartsBase
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{
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friend struct ext::shared_ptr_helper<StorageSystemPartsColumns>;
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public:
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std::string getName() const override { return "SystemPartsColumns"; }
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protected:
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StorageSystemPartsColumns(const std::string & name_);
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void processNextStorage(MutableColumns & columns, const StoragesInfo & info, bool has_state_column) override;
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};
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}
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