ClickHouse/src/Storages/StorageInput.h
2020-08-03 16:54:14 +03:00

36 lines
936 B
C++

#pragma once
#include <Storages/IStorage.h>
#include <ext/shared_ptr_helper.h>
namespace DB
{
/** Internal temporary storage for table function input(...)
*/
class StorageInput final : public ext::shared_ptr_helper<StorageInput>, public IStorage
{
friend struct ext::shared_ptr_helper<StorageInput>;
public:
String getName() const override { return "Input"; }
/// A table will read from this stream.
void setInputStream(BlockInputStreamPtr input_stream_);
Pipe read(
const Names & column_names,
const StorageMetadataPtr & /*metadata_snapshot*/,
const SelectQueryInfo & query_info,
const Context & context,
QueryProcessingStage::Enum processed_stage,
size_t max_block_size,
unsigned num_streams) override;
private:
BlockInputStreamPtr input_stream;
protected:
StorageInput(const StorageID & table_id, const ColumnsDescription & columns_);
};
}