lbug 0.16.1

An in-process property graph database management system built for query speed and scalability
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46

#pragma once

#include "main/query_result.h"

namespace lbug {
namespace processor {
class FactorizedTable;
class FactorizedTableIterator;
} // namespace processor

namespace main {

class MaterializedQueryResult : public QueryResult {
    static constexpr QueryResultType type_ = QueryResultType::FTABLE;

public:
    MaterializedQueryResult();
    LBUG_API explicit MaterializedQueryResult(std::shared_ptr<processor::FactorizedTable> table);
    MaterializedQueryResult(std::vector<std::string> columnNames,
        std::vector<common::LogicalType> columnTypes,
        std::shared_ptr<processor::FactorizedTable> table);
    ~MaterializedQueryResult() override;

    uint64_t getNumTuples() const override;

    bool hasNext() const override;

    std::shared_ptr<processor::FlatTuple> getNext() override;

    void resetIterator() override;

    std::string toString() const override;

    bool hasNextArrowChunk() override;

    std::unique_ptr<ArrowArray> getNextArrowChunk(int64_t chunkSize) override;

    const processor::FactorizedTable& getFactorizedTable() const { return *table; }

private:
    std::shared_ptr<processor::FactorizedTable> table;
    std::unique_ptr<processor::FactorizedTableIterator> iterator;
};

} // namespace main
} // namespace lbug