lbug 0.15.4

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
47
48
49
50
51
52
53
54
55

#include "planner/operator/extend/base_logical_extend.h"

using namespace lbug::common;

namespace lbug {
namespace planner {

static std::string relToString(const binder::RelExpression& rel) {
    auto result = rel.toString();
    switch (rel.getRelType()) {
    case QueryRelType::SHORTEST: {
        result += "SHORTEST";
    } break;
    case QueryRelType::ALL_SHORTEST: {
        result += "ALL SHORTEST";
    } break;
    default:
        break;
    }
    if (QueryRelTypeUtils::isRecursive(rel.getRelType())) {
        auto bindData = rel.getRecursiveInfo()->bindData.get();
        result += std::to_string(bindData->lowerBound);
        result += "..";
        result += std::to_string(bindData->upperBound);
    }
    return result;
}

std::string BaseLogicalExtend::getExpressionsForPrinting() const {
    auto result = boundNode->toString();
    switch (direction) {
    case ExtendDirection::FWD: {
        result += "-";
        result += relToString(*rel);
        result += "->";
    } break;
    case ExtendDirection::BWD: {
        result += "<-";
        result += relToString(*rel);
        result += "-";
    } break;
    case ExtendDirection::BOTH: {
        result += "<-";
        result += relToString(*rel);
        result += "->";
    } break;
    default:
        UNREACHABLE_CODE;
    }
    result += nbrNode->toString();
    return result;
}

} // namespace planner
} // namespace lbug