Certain methods in `src/Database/FunctionsBuilder.php` allow user-controlled values to be incorporated into generated SQL as unescaped structural fragments. This can lead to SQL injection, impacting confidentiality, integrity, and availability based on the database connection privileges. The affected functions and their vulnerable parameters are:
- `FunctionsBuilder::cast()`: `dataType`
- `FunctionsBuilder::extract()`: `part`
- `FunctionsBuilder::datePart()`: `part`
- `FunctionsBuilder::dateAdd()`: `unit`