Will two clients with the same database structure but different data have the same execution plan?

The query execution plan in a database depends not only on the database structure and the query itself but also on the data contained within it. Even with the same structure and queries, different data can lead to different execution plans, as the optimizer considers data statistics (such as value distribution, row count, presence of indexes, and their selectivity).

For example, if one database table contains 1,000 rows and another contains 1,000,000, the optimizer may choose different access methods (full table scan or index usage).

Thus, the execution plan may differ for two clients with the same structure but different data.