2012-06-18 07:49:19 +00:00
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#pragma once
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2017-06-06 17:18:32 +00:00
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#include <ext/shared_ptr_helper.h>
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2018-07-24 14:42:52 +00:00
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#include <Storages/System/IStorageSystemOneBlock.h>
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2012-06-18 07:49:19 +00:00
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namespace DB
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{
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2016-12-08 02:49:04 +00:00
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class Context;
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2017-04-16 15:00:33 +00:00
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/** Implements `databases` system table, which allows you to get information about all databases.
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2012-06-18 07:49:19 +00:00
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*/
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2018-07-24 14:28:56 +00:00
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class StorageSystemDatabases : public ext::shared_ptr_helper<StorageSystemDatabases>, public IStorageSystemOneBlock<StorageSystemDatabases>
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2012-06-18 07:49:19 +00:00
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{
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2019-08-26 19:07:29 +00:00
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friend struct ext::shared_ptr_helper<StorageSystemDatabases>;
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2012-06-18 07:49:19 +00:00
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public:
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2018-07-24 14:28:56 +00:00
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std::string getName() const override
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{
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return "SystemDatabases";
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}
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2012-06-18 07:49:19 +00:00
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2018-07-24 14:28:56 +00:00
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static NamesAndTypesList getNamesAndTypes();
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2014-10-06 05:18:17 +00:00
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2017-11-04 03:20:18 +00:00
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protected:
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2018-07-24 14:28:56 +00:00
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using IStorageSystemOneBlock::IStorageSystemOneBlock;
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void fillData(MutableColumns & res_columns, const Context & context, const SelectQueryInfo &) const override;
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2012-06-18 07:49:19 +00:00
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};
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}
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