JoinType:
inner
left
right
full
example:
Join.inner("tabelB").on("tableA.id", "tableB.id");
// INNER JOIN `tableB` ON `tableA`.`id` = `tableB`.`id`
Join.left("tabelB", "users").on("tableA.id", "users.id");
// LEFT OUTER JOIN `tableB` `users` ON `tableA`.`id` = `users`.`id`