No; if you create an index for the item: `insensitiveQuery(some_table.name)` and you then attempt to run: `SELECT * FROM some_table WHERE insensitiveQuery(name)

No; if you create an index for the item: `insensitiveQuery(some_table.name)` and you then attempt to run: `SELECT * FROM some_table WHERE insensitiveQuery(name) LIKE insensitiveQuery('Étranger');`, the engine would run the `insensitiveQuery` function on the string `'Étranger'`, and then look up that result in the index directly, which is O(nlogn) or faster. If you have a million tables, that'd run the function only once (on `Étranger`) and do about 20 lookups in the index before finding you the qualifying row(s).