@Override
    public ComparableExpression<T> nullif(Expression<T> other) {
        return Expressions.comparableOperation(this.getType(), Ops.NULLIF, mixin, other);
    }
Create a {@code nullif(this, other)} expression

@param other
@return nullif(this, other)
querydsl-core/src/main/java/com/querydsl/core/types/dsl/ComparableExpression.java