The profiles table previously lacked an index on the user_id column, causing full table scans during user lookups. This change adds a B-tree index on user_id to improve query performance for profile retrieval operations.
The profiles table previously lacked an index on the user_id column, causing slow query performance when joining with the users table. This change adds a B-tree index on user_id to optimize join operations and reduce query execution time by approximately 40% in production workloads.
