Function analysis_is_current 

pub fn analysis_is_current(
    context: &PreparedDefinitionContext<'_>,
    retained_path: Option<&EffectiveSearchPath>,
    dependencies: &PreparedAnalysisDependencies,
    retained_snapshot: Option<&PreparedDependencySnapshot>,
) -> Result<bool, SQLError>

Check analysis dependencies in one retained namespace. Catalogs that supplied no path or revision capability at analysis leave that part of freshness to their owner’s invalidation events.