SQLite does not support negative precision.

Raise code

    def __init__(self, expression, precision=0, **extra):
        super().__init__(expression, precision, **extra)

    def as_sqlite(self, compiler, connection, **extra_context):
        precision = self.get_source_expressions()[1]
        if isinstance(precision, Value) and precision.value < 0:
            raise ValueError('SQLite does not support negative precision.')
        return super().as_sqlite(compiler, connection, **extra_context)

    def _resolve_output_field(self):
        source = self.get_source_expressions()[0]
        return source.output_field