pola-rs/polars · error

with not set

Error message

with not set

What it means

Error "with not set" thrown in pola-rs/polars.

Source

Thrown at crates/polars-lazy/src/frame/mod.rs:2318

            .join(
                other.logical_plan,
                self.left_on,
                self.right_on,
                JoinOptions {
                    allow_parallel: self.allow_parallel,
                    force_parallel: self.force_parallel,
                    args,
                }
                .into(),
            )
            .build();
        LazyFrame::from_logical_plan(lp, opt_state)
    }

    // Finish with join predicates
    pub fn join_where(self, predicates: Vec<Expr>) -> LazyFrame {
        let opt_state = self.lf.opt_state;
        let other = self.other.expect("with not set");

        // Decompose `And` conjunctions into their component expressions
        fn decompose_and(predicate: Expr, expanded_predicates: &mut Vec<Expr>) {
            if let Expr::BinaryExpr {
                op: Operator::And,
                left,
                right,
            } = predicate
            {
                decompose_and((*left).clone(), expanded_predicates);
                decompose_and((*right).clone(), expanded_predicates);
            } else {
                expanded_predicates.push(predicate);
            }
        }
        let mut expanded_predicates = Vec::with_capacity(predicates.len() * 2);
        for predicate in predicates {
            decompose_and(predicate, &mut expanded_predicates);

View on GitHub (pinned to df599052da)

When it happens

Trigger: Thrown at crates/polars-lazy/src/frame/mod.rs:2318 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of pola-rs/polars@df599052da (2026-08-16). Data as JSON: /api/errors/3520fe2047b3fd7a. Report an issue: GitHub.