select-sample.bal

import ballerina/io;

type Salary record {
    int id,
    float salary,
};

type Person record {
    int id,
    float salary,
    string name,
};


function main(string... args) {
    table<Person> dt;

    Person p1 = { id: 1, name: "A", salary: 100 };
    Person p2 = { id: 2, name: "B", salary: 200 };
    Person p3 = { id: 3, name: "C", salary: 300 };

    _ = dt.add(p1);
    _ = dt.add(p2);
    _ = dt.add(p3);

    table<Salary> salaries = dt.select(getSalary);

    io:println(salaries);
}

function getSalary(Person p) returns Salary {
    Salary s = { id: p.id, salary: p.salary };
    return s;
}