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#pragma once
#include <memory>
#include <Storages/MergeTree/MergeTreeReaderStream.h>
#include <Storages/MergeTree/MergeTreeIndices.h>
#include <Storages/MergeTree/MergeTreeData.h>
namespace DB
{
class MergeTreeIndexReader
{
public:
MergeTreeIndexReader(
MergeTreeIndexPtr index_,
MergeTreeData::DataPartPtr part_,
size_t marks_count_,
const MarkRanges & all_mark_ranges_,
MarkCache * mark_cache,
UncompressedCache * uncompressed_cache,
MergeTreeReaderSettings settings);
~MergeTreeIndexReader();
void seek(size_t mark);
MergeTreeIndexGranulePtr read();
private:
MergeTreeIndexPtr index;
std::unique_ptr<MergeTreeReaderStream> stream;
uint8_t version = 0;
};
}
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