No output from "Quick start" get-started example: https://docs.kuzudb.com/get-started/

[raphael10-collab]

While this code

#include <iostream>

#include "kuzu.hpp"
using namespace kuzu::main;

int main() {
    auto database = std::make_unique<Database>("" /* fill db path */);
    auto connection = std::make_unique<Connection>(database.get());

    // Create schema.
    connection->query("CREATE NODE TABLE Person(name STRING, age INT64, PRIMARY KEY(name));");
    // Create nodes.
    connection->query("CREATE (:Person {name: 'Alice', age: 25});");
    connection->query("CREATE (:Person {name: 'Bob', age: 30});");

    // Execute a simple query.
    auto result = connection->query("MATCH (a:Person) RETURN a.name AS NAME, a.age AS AGE;");
    // Print query result.
    std::cout << result->toString();
}

produces this correct output:

(base) raphy@raohy:~/kuzu-cpp$ ./builddir/MyPrj 
NAME|AGE
Alice|25
Bob|30

I get no output from "Quick start" get-started example: https://docs.kuzudb.com/get-started/

(base) raphy@raohy:~/kuzu-cpp$ cmake -B builddir
-- The C compiler identification is GNU 13.3.0
-- The CXX compiler identification is GNU 14.2.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done (0.3s)
-- Generating done (0.0s)
-- Build files have been written to: /home/raphy/kuzu-cpp/builddir
(base) raphy@raohy:~/kuzu-cpp$ cmake --build builddir/
[ 50%] Building CXX object CMakeFiles/MyPrj.dir/src/main.cpp.o
[100%] Linking CXX executable MyPrj
[100%] Built target MyPrj
(base) raphy@raohy:~/kuzu-cpp$ ./builddir/MyPrj 
(base) raphy@raohy:~/kuzu-cpp$ 

CMakeLists.txt file :

cmake_minimum_required(VERSION 3.15...3.31)
project(MyPrj)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

#find_package(kuzu)

add_executable(${PROJECT_NAME}
   src/main.cpp
)

target_link_directories(${PROJECT_NAME} PUBLIC
    ./src/KuzuDB/lib
)

target_include_directories(${PROJECT_NAME} PUBLIC
    ./src/KuzuDB/include
)

target_link_libraries(${PROJECT_NAME} PUBLIC
    kuzu
)

source file :

./src/main.cpp :

#include <iostream>

#include "./KuzuDB/include/kuzu.hpp"

using namespace kuzu::main;
using namespace std;

int main() {
    // Create an empty on-disk database and connect to it
    SystemConfig systemConfig;
    auto database = make_unique<Database>("test", systemConfig);

    // Connect to the database.
    auto connection = make_unique<Connection>(database.get());

    // Create the schema.
    connection->query("CREATE NODE TABLE User(name STRING, age INT64, PRIMARY KEY (name))");
    connection->query("CREATE NODE TABLE City(name STRING, population INT64, PRIMARY KEY (name))");
    connection->query("CREATE REL TABLE Follows(FROM User TO User, since INT64)");
    connection->query("CREATE REL TABLE LivesIn(FROM User TO City)");

    // Load data.
    connection->query("COPY User FROM \"user.csv\"");
    connection->query("COPY City FROM \"city.csv\"");
    connection->query("COPY Follows FROM \"follows.csv\"");
    connection->query("COPY LivesIn FROM \"lives-in.csv\"");

    // Execute a simple query.
    auto result =
        connection->query("MATCH (a:User)-[f:Follows]->(b:User) RETURN a.name, f.since, b.name;");

    // Output query result.
    while (result->hasNext()) {
        auto row = result->getNext();
        std::cout << row->getValue(0)->getValue<string>() << " "
                  << row->getValue(1)->getValue<int64_t>() << " "
                  << row->getValue(2)->getValue<string>() << std::endl;
    }
    return 0;
}

Folder content :

(base) raphy@raohy:~/kuzu-cpp$ ls -lah ./src
total 44K
drwxrwxr-x 3 raphy raphy 4,0K mar  5 14:16 .
drwxrwxr-x 6 raphy raphy 4,0K mar  5 14:14 ..
-rw-rw-r-- 1 raphy raphy   46 mar  5 14:07 city.csv
-rw-rw-r-- 1 raphy raphy  196 mar  5 14:07 copy.cypher
-rw-rw-r-- 1 raphy raphy   70 mar  5 14:07 follows.csv
drwxrwxr-x 4 raphy raphy 4,0K mar  5 13:54 KuzuDB
-rw-rw-r-- 1 raphy raphy   60 mar  5 14:07 lives-in.csv
-rw-rw-r-- 1 raphy raphy 1,5K mar  5 14:10 main.cpp
-rw-rw-r-- 1 raphy raphy  689 mar  5 14:04 OLDmain.cpp
-rw-rw-r-- 1 raphy raphy  241 mar  5 14:07 schema.cypher
-rw-rw-r-- 1 raphy raphy   37 mar  5 14:08 user.csv

(base) raphy@raohy:~/kuzu-cpp$ ls -lah ./src/KuzuDB/
total 16K
drwxrwxr-x 4 raphy raphy 4,0K mar  5 13:54 .
drwxrwxr-x 3 raphy raphy 4,0K mar  5 14:16 ..
drwxrwxr-x 2 raphy raphy 4,0K mar  5 13:53 include
drwxrwxr-x 2 raphy raphy 4,0K mar  5 13:54 lib

(base) raphy@raohy:~/kuzu-cpp$ ls -lah ./src/KuzuDB/include/
total 392K
drwxrwxr-x 2 raphy raphy 4,0K mar  5 13:53 .
drwxrwxr-x 4 raphy raphy 4,0K mar  5 13:54 ..
-rw-r--r-- 1 raphy raphy  69K feb 15 09:04 kuzu.h
-rw-r--r-- 1 raphy raphy 312K feb 24 16:49 kuzu.hpp
(base) raphy@raohy:~/kuzu-cpp$ 
(base) raphy@raohy:~/kuzu-cpp$ ls -lah ./src/KuzuDB/lib/
total 22M
drwxrwxr-x 2 raphy raphy 4,0K mar  5 13:54 .
drwxrwxr-x 4 raphy raphy 4,0K mar  5 13:54 ..
-rwxr-xr-x 1 raphy raphy  22M feb 24 16:49 libkuzu.so

OS: Ubuntu 24.04
gcc (Ubuntu 13.3.0-6ubuntu2~24.04) : 13.3.0

What am I missing and / or doing wrong? How to make it work?