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28 lines
706 B
C++
28 lines
706 B
C++
#pragma once
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#include <ext/shared_ptr_helper.h>
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#include <Storages/System/IStorageSystemOneBlock.h>
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namespace DB
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{
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class Context;
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/** Implements system table 'columns', that allows to get information about columns for every table.
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*/
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class StorageSystemColumns : public ext::shared_ptr_helper<StorageSystemColumns>, public IStorageSystemOneBlock<StorageSystemColumns>
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{
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public:
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std::string getName() const override { return "SystemColumns"; }
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static NamesAndTypesList getNamesAndTypes();
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protected:
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using IStorageSystemOneBlock::IStorageSystemOneBlock;
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void fillData(MutableColumns & res_columns, const Context & context, const SelectQueryInfo & query_info) const override;
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};
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}
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