activerecord-explainer

activerecord-explainer puts SQL EXPLAIN of every queries to development log


Keywords
activerecord, ruby-on-rails, rubygems, sql
License
MIT
Install
gem install activerecord-explainer -v 0.2.0

Documentation

ActiveRecord::Explainer

This gem automatically logs SQL EXPLAIN of every queries.

You can check naturally every SQL EXPLAIN from development log, without executions.

Usage

If you use Rails, it's no configuration, and you can logs SQL EXPLAIN of every queries.

Installation

Add this line to your application's Gemfile:

gem 'activerecord-explainer', group: :development

And then execute:

$ bundle

Or install it yourself as:

$ gem install activerecord-explainer

How it work?

  • This gem subscribes sql.active_record event provided by the Active Support instrumentation API.
  • Subscriber handles payload, and execute EXPLAIN from ActiveRecord::Base.

Please check the implementation, if you interested in.

License

MIT License