t1 table
+----+--------+-------+
| id | name | age |
+-------------+-------+
| 1 | kusal | 25 |
| 2 | saman | 20 |
+----------+----+-----+
t2 table
+----------+----+------------+
| image_id | id | image_path |
+----------+----+------------+
| 1 | 1 | path1 |
| 2 | 1 | path2 |
| 3 | 1 | path 3 |
| 4 | 2 | path 1 |
| 5 | 1 | path 4 |
| 6 | 2 | path 5 |
+----------+----+------------+
SELECT * FROM t1 a left join t2 b on a.id = b.id group by b.id
+----+-------+-----+----------+------+------------+
| id | name | age | image_id | id | image_path |
+----+-------+-----+----------+------+------------+
| 1 | kusal | 25 | 1 | 1 | path1 |
| 2 | saman | 21 | 4 | 2 | path 1 |
+----+-------+-----+----------+------+------------+
Using group by for the right table id, it will only get the one result from right table.
