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37 lines
850 B
C++
37 lines
850 B
C++
#pragma once
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#include <ext/shared_ptr_helper.h>
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#include <Storages/IStorage.h>
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namespace DB
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{
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class Context;
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/// Implements the `mutations` system table, which provides information about the status of mutations
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/// in the MergeTree tables.
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class StorageSystemMutations : public ext::shared_ptr_helper<StorageSystemMutations>, public IStorage
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{
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public:
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String getName() const override { return "SystemMutations"; }
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String getTableName() const override { return name; }
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BlockInputStreams read(
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const Names & column_names,
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const SelectQueryInfo & query_info,
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const Context & 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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private:
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const String name;
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protected:
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StorageSystemMutations(const String & name_);
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};
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}
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