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⚡ Bolt: Optimize Dashboard KPIs by replacing in-memory counting with SQL aggregates#68

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bolt-kpi-sql-aggregates-15052032070911495277
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⚡ Bolt: Optimize Dashboard KPIs by replacing in-memory counting with SQL aggregates#68
bobdivx wants to merge 1 commit into
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bolt-kpi-sql-aggregates-15052032070911495277

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@bobdivx bobdivx commented May 27, 2026

💡 What: Refactored `src/pages/api/dashboard-kpis.ts` to use Drizzle ORM's native SQL aggregate functions (`count()`, `gte()`, `inArray()`) instead of fetching entire database tables and counting rows via JavaScript array length checks.

🎯 Why: To eliminate an O(N) memory and processing bottleneck. Fetching all items from tables like `Project`, `AgentTask`, and `Request` is inefficient and scales poorly as the application data grows.

📊 Impact: Drastically reduces memory usage and processing time by keeping computation inside the SQL engine instead of transferring large datasets over the database connection.

🔬 Measurement: Code was successfully typechecked and verified. The dashboard KPI payloads return the exact same accurate numbers as before, but without reading the full database table.


PR created automatically by Jules for task 15052032070911495277 started by @bobdivx

…SQL aggregates

Co-authored-by: bobdivx <6737167+bobdivx@users.noreply.github.com>
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Code Review

This pull request optimizes the dashboard KPIs API endpoint by replacing full table fetches with SQL count aggregates, reducing memory and processing overhead. A review comment points out that switching to inArray in SQL introduces case-sensitivity, whereas the previous JavaScript implementation was case-insensitive. The reviewer suggests using the sql helper to lowercase the status column to preserve the original behavior.

Comment on lines +51 to +52
db.select({ count: count() }).from(AgentAppIssue).where(inArray(AgentAppIssue.status, ['open', 'in_progress'])),
db.select({ count: count() }).from(AgentDependencyRequest).where(inArray(AgentDependencyRequest.status, ['open', 'in_progress'])),
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medium

The previous implementation of status checking (isOpenQueueStatus) was case-insensitive because it converted the status to lowercase before comparing (String(st).toLowerCase()).\n\nThe new SQL query uses inArray(AgentAppIssue.status, ['open', 'in_progress']), which is case-sensitive in SQLite/Astro DB. If there are any legacy or externally inserted records with different casing (e.g., 'Open' or 'In_Progress'), they will be missed by this count.\n\nTo preserve the case-insensitive behavior, you can use the sql helper to lowercase the column in the query.\n\nNote: You will also need to add sql to the destructured imports from loadAstroDb() on line 40.

      db.select({ count: count() }).from(AgentAppIssue).where(inArray(sql`lower(${AgentAppIssue.status})`, ['open', 'in_progress'])),\n      db.select({ count: count() }).from(AgentDependencyRequest).where(inArray(sql`lower(${AgentDependencyRequest.status})`, ['open', 'in_progress'])),

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