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swordray/gist:9168494

Last active August 29, 2015 13:56
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ActiveRecord serialization with 1000% performance improvement by skipping instantiation
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gistfile1.rb
records = ActiveRecordClass.select().where().order().paginate()
# before
records.to_json
# after - with 1000% performance improvement
records.klass.connection.execute(records.to_sql).to_a.map { |record| [records.select_values, record].transpose.to_h } }.to_json
@itai-sagi
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how would you use this for active record relations?

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