Struct SnapshotBundle 

pub struct SnapshotBundle {
    pub snapshot: Option<SnapshotContext>,
    pub auth: Option<(String, Role)>,
    pub tenant: Option<String>,
}

Frozen MVCC + identity context for callers that need to reinstall the same view across thread-local boundaries — long-lived cursors, background batchers, anything that detaches from the dispatch path and re-enters later.

The bundle bakes in the three thread-locals every read path consults: SnapshotContext (MVCC visibility), the auth identity (RLS policy gate), and the tenant id (RLS scope). A FETCH that reinstalls the bundle sees exactly the same rows as the DECLARE would have, regardless of writes that landed in between.

Cheap to clone — SnapshotContext is a clone of three Arc-backed fields, identity is a (String, Role), tenant is a String. None of these contend with the read path.

Fields

snapshot: Option<SnapshotContext>

auth: Option<(String, Role)>

tenant: Option<String>

Trait Implementations

impl Clone for SnapshotBundle

fn clone(&self) -> SnapshotBundle

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for SnapshotBundle

fn default() -> SnapshotBundle

Returns the “default value” for a type.