NOT with parentheses for complex expression?

[6xzo]

Passing a complex Expr to Expr::not, I expected parentheses in the output, to respect the precedence ordering.

use sea_query::*;

fn main() {
    let t1 = Expr::col(Alias::new("a")).eq(1);
    let t2 = Expr::col(Alias::new("b")).eq(1);
    let expr = t1.and(t2);
    let expr = Expr::expr(expr).not();
    let query = Query::select()
        .and_where(expr)
        .to_string(MysqlQueryBuilder);
    println!("{}", query);
}

prints:

SELECT WHERE NOT (`a` = 1) AND (`b` = 1)

I expected:

SELECT WHERE NOT ( (`a` = 1) AND (`b` = 1) )

Is there a way to achieve what I expected?

I tried to use Conditions, but cannot figure out how to apply not to them.

[tyt2y3]

Hi there. You are right. Condition is the right way for building complex logic trees.
This feature is on our roadmap SeaQL/sea-orm#147
We hope to implement it soon, or if you (whom are reading) are interested in implementing,
the historic reference of Condition is #47

[6xzo]

Thank you