Performance Issue: N+1 Query Pattern in Activity Logs Query -created-by-agentic

[asafchen-dig]

Issue Description

A severe performance degradation has been detected in the activity logs query system due to an N+1 query pattern.

Current Behavior

• Query duration: 2.72 seconds (normal: 3.09 milliseconds)
• Query is being executed 82 times per request in 41% of requests
• Endpoint: /api/clinic-activity/query-logs
• Criticality: 0.87

Root Cause

The current implementation executes the same query multiple times in a loop instead of using a single optimized query. This N+1 query pattern is causing significant performance overhead.

Impact

• Severely degraded response times (2.72s vs expected 3.09ms)
• Increased database load
• Poor user experience
• Resource inefficiency

Solution

A PR has been created (#72) that implements the following fixes:

1. Replace multiple individual queries with a single optimized query
2. Implement pagination to limit result set size
3. Add proper response structure with pagination metadata
4. Add OpenTelemetry instrumentation for better observability

Expected Improvement

• Query duration reduction from 2.72s to ~10ms
• Elimination of N+1 query pattern
• Reduced database load
• Better resource utilization

Related

• PR Archive 1 #72