SQLite table rebuilds for column type changes risk data loss and side effects

SQLite cannot alter a column's data type directly, requiring a full table rebuild. This process involves creating a new table, copying data, dropping the old table, and renaming the new one. If executed without proper precautions, it can inadvertently delete child table rows via cascading actions, remove associated indexes and triggers, and leave unconverted data in place. Developers must carefully plan such rebuilds to avoid these destructive side effects.