Type Alias BindError 

pub type BindError = UserParamError;

Public bind error alias matching the parameter-contract ADR wording.

Aliased Type

pub enum BindError {
    Arity {
        expected: usize,
        got: usize,
    },
    Gap {
        missing: usize,
        max: usize,
    },
    UnsupportedShape,
    TypeMismatch {
        slot: &'static str,
        got: &'static str,
    },
}

Variants

Arity

Caller supplied fewer or more values than the SQL references. expected is the highest $N index in the SQL (so a SQL using $1 and $3 reports expected = 3).

Fields

expected: usize

got: usize

Gap

SQL uses $1 and $3 but not $2 — placeholder indices must be a contiguous run starting from 1.

Fields

missing: usize

max: usize

UnsupportedShape

The runtime accepts only QueryExpr variants supported by the shape binder (Table / Join / Graph / Path / Vector / Hybrid). Other shapes (DDL, KV ops, etc.) cannot carry placeholders in the tracer-bullet scope.

TypeMismatch

A parameter was supplied in a slot that requires a specific type (e.g. a vector slot received a string). slot describes the context, got describes the user-supplied value’s variant.

Fields

slot: &'static str

got: &'static str