⚡ Bolt: Fix N+1 query bottleneck in user orders#49
⚡ Bolt: Fix N+1 query bottleneck in user orders#49fatelessdev wants to merge 1 commit intomasterfrom
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Co-authored-by: f4teless <60130665+f4teless@users.noreply.github.com>
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🤖 AI Code Review📝 Summary & Verdict This PR refactors the Verdict: ✅ Approve 📝 WalkthroughWalkthroughThe PR fixes an N+1 query problem in the Changes
📊 VisualizationsequenceDiagram
participant C as Client
participant S as Server (getUserOrders)
participant DB as Database
C->>S: Request user orders
S->>DB: 1. Fetch all orders for user
DB-->>S: orders[]
S->>S: Extract order IDs
S->>DB: 2. Fetch all items for order IDs (batched)
DB-->>S: orderItems[]
S->>S: Group items by order ID (in-memory Map)
S-->>C: Return orders with items
Actionable comments posted: 0 Caution No critical issues found. Warning No major issues found. 🧹 Nitpick comments (0)No minor issues found. Tip No actionable issues found. The code looks good! ✅ 💡 Suggestions & Improvements
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⚡ Bolt: [performance improvement]
💡 What: Refactored
getUserOrdersinlib/actions/orders.tsto fetch all related order items in a single, batched query using Drizzle'sinArrayoperator, instead of executing a new query for every order inside aPromise.allmapping. Items are now grouped efficiently in memory using a hash map.🎯 Why: The original implementation mapped over
userOrdersand performed a database query toorderItemsfor every single order. This is a classic N+1 query problem that scales poorly and introduces severe latency overhead, especially given the serverless Neon Postgres architecture.📊 Impact: Reduces database queries from 1+N (where N is the number of orders) to exactly 2 queries. This dramatically improves latency and reduces database connection overhead, yielding an O(1) database hit profile for this endpoint.
🔬 Measurement: Review network latency for page loads fetching user orders. Verify test suite passes without regressions. Ensure journal entry correctly documents Drizzle batch query execution over loops.
PR created automatically by Jules for task 11536985240632676679 started by @f4teless