uqa-sql 0.3.6

PostgreSQL-compatible SQL compiler built on libpg_query
Documentation 
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//
// Unified Query Algebra
//
// Copyright (c) 2023-2026 Cognica, Inc.
//

//! Borrow live event registries without copying their contents or releasing catalog guards.
use super::{RuleCatalog, TriggerCatalog};
use std::ops::Deref;
pub type RuleCatalogRead<'a> = Box<dyn Deref<Target = RuleCatalog> + 'a>;
pub type TriggerCatalogRead<'a> = Box<dyn Deref<Target = TriggerCatalog> + 'a>;
pub trait EventCatalogReads {
    fn read_rules(&self) -> RuleCatalogRead<'_>;
    fn read_triggers(&self) -> TriggerCatalogRead<'_>;
}

/// Borrow statement-pinned event definitions and read the current replication role on demand.
pub trait EventLookupState {
    fn query_rules(&self) -> Option<&RuleCatalog>;
    fn query_triggers(&self) -> Option<&TriggerCatalog>;
    fn session_replication_role_is_replica(&self) -> bool;
}