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#pragma once
#include <vector>
#include <IO/WriteBuffer.h>
#include <IO/ReadBuffer.h>
#include <Storages/MergeTree/MarkRange.h>
#include "Storages/MergeTree/AlterConversions.h"
#include "Storages/MergeTree/MergeTreePartInfo.h"
namespace DB
{
class IMergeTreeDataPart;
using DataPartPtr = std::shared_ptr<const IMergeTreeDataPart>;
/// The only purpose of this struct is that serialize and deserialize methods
/// they look natural here because we can fully serialize and then deserialize original DataPart class.
struct RangesInDataPartDescription
{
MergeTreePartInfo info;
MarkRanges ranges;
void serialize(WriteBuffer & out) const;
String describe() const;
void deserialize(ReadBuffer & in);
};
struct RangesInDataPartsDescription: public std::deque<RangesInDataPartDescription>
{
using std::deque<RangesInDataPartDescription>::deque;
void serialize(WriteBuffer & out) const;
String describe() const;
void deserialize(ReadBuffer & in);
void merge(RangesInDataPartsDescription & other);
};
struct RangesInDataPart
{
DataPartPtr data_part;
AlterConversionsPtr alter_conversions;
size_t part_index_in_query;
MarkRanges ranges;
RangesInDataPart() = default;
RangesInDataPart(
const DataPartPtr & data_part_,
const AlterConversionsPtr & alter_conversions_,
const size_t part_index_in_query_,
const MarkRanges & ranges_ = MarkRanges{})
: data_part{data_part_}
, alter_conversions{alter_conversions_}
, part_index_in_query{part_index_in_query_}
, ranges{ranges_}
{}
RangesInDataPartDescription getDescription() const;
size_t getMarksCount() const;
size_t getRowsCount() const;
};
struct RangesInDataParts: public std::vector<RangesInDataPart>
{
using std::vector<RangesInDataPart>::vector;
RangesInDataPartsDescription getDescriptions() const;
size_t getMarksCountAllParts() const;
size_t getRowsCountAllParts() const;
};
}
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