# `MergeJoin` Operator - Cont'd

![`smart`](MergeJoin04_aa_001_20230913.png)

------------------------------------------------------------------------------
In the slides, the matching of the two tables does not require a full table scan. Since both tables have the `emp_no` column sorted, the matching process can stop as soon as a corresponding `emp_no` row is not found in the `salaries` table.