polars-plan 0.54.1

Lazy query engine for the Polars DataFrame library
1
2
3
4
5
6
7
8
9
10
11
12

use super::*;

/// Take several expressions and collect them into a [`StructChunked`].
/// # Panics
/// panics if `exprs` is empty.
pub fn as_struct(exprs: Vec<Expr>) -> Expr {
    assert!(
        !exprs.is_empty(),
        "expected at least 1 field in 'as_struct'"
    );
    Expr::n_ary(FunctionExpr::AsStruct, exprs)
}