What Should I Do If Index Query Is Slow in the Destination Database After MySQL Migration?

During a full migration, DRS writes lots of data to tables concurrently in a short period. The table statistics may not be updated in a timely manner, causing poor execution plans during SQL parsing and slow table operations. This issue is more likely to occur when indexes are created in a table before data migration. Update database statistics in a timely manner.

In this case, you can run the following command in the destination database to analyze the table and update the table statistics:

ANALYZE TABLE table_name;