Operation 131340

SELECT * FROM posts WHERE user_id = ? ORDER BY created_at DESC LIMIT ?
Operation Type
sql
Duration
3.0 ms
Request Impact
0.5% of total request time
Occurred At
Sep 09, 2026 10:46 AM
SQL Analysis
Normal query (<100 ms)
Performance Comparison
Average: 18.2ms
95th Percentile: 34.0ms
Based on 1000 recent operations
Related Operations
5 similar operations in this request
Potential N+1 query pattern detected
Optimization Tips
Add composite index: add_index :posts, ["user_id", "created_at"] - Single index for filtering and sorting
Add single_column index: add_index :posts, :user_id - Fast lookups for user_id = value queries
Add single_column index: add_index :posts, :created_at - Avoid sorting for ORDER BY created_at
Specify only needed columns instead of SELECT * - Reduced memory usage and faster data transfer
Index Optimization - Review indexes on the 'posts' table. Consider composite indexes for WHERE clauses.