Module n1_detection 

N+1 Query Detection for SQLModel Rust.

This module provides detection and warning for the N+1 query anti-pattern, which occurs when code loads N objects and then lazily loads a relationship for each, resulting in N+1 database queries instead of 2.

Example

// Enable N+1 detection
session.enable_n1_detection(3);  // Warn after 3 lazy loads

// This will trigger a warning:
for hero in &mut heroes {
    hero.team.load(&mut session).await?;  // N queries!
}

// This is the fix:
session.load_many(&mut heroes, |h| &mut h.team).await?;  // 1 query

Structs

CallSite

Information about where a lazy load was triggered.

N1DetectionScope

Scope helper for N+1 detection tracking.

N1QueryTracker

Tracks lazy load queries for N+1 detection.

N1Stats

Statistics about N+1 detection.