Active Record 查询缓存

# File activerecord/lib/active_record/query_cache.rb, line 44
def self.complete(pools)
  pools.each do |pool|
    pool.disable_query_cache!
    pool.clear_query_cache
  end
end

# File activerecord/lib/active_record/query_cache.rb, line 51
def self.install_executor_hooks(executor = ActiveSupport::Executor)
  executor.register_hook(self)
end

# File activerecord/lib/active_record/query_cache.rb, line 37
def self.run
  ActiveRecord::Base.connection_handler.each_connection_pool.reject(&:query_cache_enabled).each do |pool|
    next if pool.db_config&.query_cache == false
    pool.enable_query_cache!
  end
end