Function order_keys_equal

nodedb-query/src/window/helpers.rs:70–81

Returns true when row at index `b` has the same ORDER BY key as row at index `a` (used by peer-aware ranking like RANK and PERCENT_RANK).

(
    rows: &[(String, serde_json::Value)],
    a: usize,
    b: usize,
    order_by: &[(SqlExpr, bool)],
)

/// Returns true when row at index `b` has the same ORDER BY key as row at
/// index `a` (used by peer-aware ranking like RANK and PERCENT_RANK).
pub(super) fn order_keys_equal(
    rows: &[(String, serde_json::Value)],
    a: usize,
    b: usize,
    order_by: &[(SqlExpr, bool)],
) -> bool {
    order_by.iter().all(|(expr, _)| {
        let va = eval_expr_on_json(expr, &rows[a].1);
        let vb = eval_expr_on_json(expr, &rows[b].1);
        va == vb
    })
}