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#pragma once
#include <Storages/IStorage.h>
namespace DB
{
/**
* Implements system table 'detached_parts' which allows to get information
* about detached data parts for tables of MergeTree family.
* We don't use StorageSystemPartsBase, because it introduces virtual _state
* column and column aliases which we don't need.
*/
class StorageSystemDetachedParts final : public IStorage
{
public:
explicit StorageSystemDetachedParts(const StorageID & table_id_);
std::string getName() const override { return "SystemDetachedParts"; }
bool isSystemStorage() const override { return true; }
protected:
Pipe read(
const Names & /* column_names */,
const StorageSnapshotPtr & storage_snapshot,
SelectQueryInfo & query_info,
ContextPtr context,
QueryProcessingStage::Enum /*processed_stage*/,
size_t /*max_block_size*/,
size_t /*num_streams*/) override;
};
}
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