Optimize: Database Queries & StructureDraftRuby6,109Edit
help to kill N+1 queries and unused eager loading
A Rails database query counter that stays out of your way
An excellent development aid. Will run "EXPLAIN" before each of your select queries in development, and provides a display which makes them easy to browse. In this fork, gemified and compatible with Rails 2 + 3.
A rake task to track down missing database indexes. does not assume that all foreign keys end with the convention of _id.
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