Benchmark

require 'benchmark/ips'

Benchmark.ips do |x|
  LIMIT = 20000
  columns = %i(id)
  x.report('as_json') { Incident.limit(LIMIT).select(*columns).as_json }
  x.report('pluck_json') { Incident.limit(LIMIT).pluck_json(*columns) }
  x.compare!
end

Calculating -------------------------------------
             as_json     1.000  i/100ms
          pluck_json     1.000  i/100ms
-------------------------------------------------
             as_json      0.585  (± 0.0%) i/s -      4.000  in   6.876732s
          pluck_json     16.215  (±12.3%) i/s -     80.000

Comparison:
          pluck_json:       16.2 i/s
             as_json:        0.6 i/s - 27.72x slower



Benchmark.ips do |x|
  LIMIT = 20000
  columns = %i(id category_id user_id)
  x.report('as_json') { Incident.limit(LIMIT).select(*columns).as_json }
  x.report('pluck_json') { Incident.limit(LIMIT).pluck_json(*columns) }
  x.compare!
end

Calculating -------------------------------------
             as_json     1.000  i/100ms
          pluck_json     1.000  i/100ms
-------------------------------------------------
             as_json      0.550  (± 0.0%) i/s -      3.000  in   5.463522s
          pluck_json     10.586  (± 9.4%) i/s -     53.000

Comparison:
          pluck_json:       10.6 i/s
             as_json:        0.5 i/s - 19.25x slower

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/pavlik4k/pluck_json. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

The gem is available as open source under the terms of the MIT License.