Function extract_as_value

nodedb-query/src/msgpack_scan/aggregate.rs:272–277

Extract a field as `Value`. Uses direct msgpack→Value for scalars; falls back to full decode only for complex types.

(doc: &[u8], field: &str, expr: Option<&crate::expr::SqlExpr>)

/// Extract a field as `Value`. Uses direct msgpack→Value for scalars;
/// falls back to full decode only for complex types.
fn extract_as_value(doc: &[u8], field: &str, expr: Option<&crate::expr::SqlExpr>) -> Option<Value> {
    if let Some(expr) = expr {
        return eval_expr_on_doc(doc, expr);
    }
    value_from_field(doc, field)
}

#[inline]
fn value_from_field(doc: &[u8], field: &str) -> Option<Value> {