Query-Logs Endpoint Performance Optimization-created-by-agentic

[doppleware]

Performance issue identified in the /query-logs endpoint with severe degradation.

Current Issues

1. Missing index on numeric_value column causing full table scans
2. No pagination implementation leading to large result sets
3. Poor query performance (29s execution time)
4. Low buffer cache hit rate

Actions Taken

1. Created index on numeric_value column:

CREATE INDEX idx_clinic_activity_logs_numeric_value ON clinic_activity_logs(numeric_value);

2. Implemented pagination in the getLogs endpoint:

• Added page and pageSize parameters
• Added LIMIT and OFFSET clauses
• Improved query performance to ~10ms

Related PR

See PR #442 for implementation details.

Future Recommendations

1. Consider implementing query result caching
2. Continue monitoring query performance
3. Review other potential slow queries on the same table
4. Consider implementing additional indexes based on query patterns

Performance Metrics

• Original query execution time: ~29s
• New query execution time: ~10ms
• Improved buffer cache hit rate
• Reduced memory usage through pagination

Please review and monitor the changes to ensure they meet performance requirements.