Function exists

exists(subquery: string | { $literal: string }): Record<string, any>
Helper to create EXISTS condition Returns records where the subquery returns at least one row
Parameters
- subquery: string | { $literal: string }
Returns Record<string, any>
Example
```
// Find users with at least one order
User.findAll({
  where: exists('SELECT 1 FROM orders WHERE orders.user_id = users.id')
})
```
- Defined in operators.ts:1683