Created
February 6, 2020 03:39
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RDBアクセス方法比較
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| db = Sequel.mysql2(ApplicationRecord.connection_config) | |
| # media_daily_referrer_campaign_report | |
| Benchmark.bm do |x| | |
| # 1. sequel | |
| # 1-1. idのみ | |
| x.report('sequel(id) ') do | |
| db.fetch('select id from media_daily_referrer_campaign_reports limit 50000'){|r| r[:id] } | |
| end | |
| # 1-2. 全部 | |
| x.report('sequel(all)') do | |
| db.fetch('select * from media_daily_referrer_campaign_reports limit 50000'){|r| r[:id] } | |
| end | |
| # 2. find_by_sql + pluck | |
| # 2-1. idのみ | |
| x.report('pluck(id) ') do | |
| MediaDailyReferrerCampaignReport.uncached do | |
| media_daily_referrer_campaign_reports = MediaDailyReferrerCampaignReport.find_by_sql("select id from media_daily_referrer_campaign_reports limit 50000") | |
| .pluck(:id) | |
| media_daily_referrer_campaign_reports.each {|r| r[0] } | |
| end | |
| end | |
| # 2-2. 全部 | |
| x.report('pluck(all) ') do | |
| MediaDailyReferrerCampaignReport.uncached do | |
| media_daily_referrer_campaign_reports = MediaDailyReferrerCampaignReport.find_by_sql("select * from media_daily_referrer_campaign_reports limit 50000") | |
| .pluck(*MediaDailyReferrerCampaignReport.new.attributes.keys.map(&:to_sym)) | |
| media_daily_referrer_campaign_reports.each {|r| r[0] } | |
| end | |
| end | |
| # 3. ActiveRecord | |
| # 3-1. each | |
| x.report('each ') do | |
| MediaDailyReferrerCampaignReport.uncached do | |
| media_daily_referrer_campaign_reports = MediaDailyReferrerCampaignReport.limit(50_000) | |
| media_daily_referrer_campaign_reports.each {|r| r.id } | |
| end | |
| end | |
| # 3-2. find_each | |
| x.report('find_each ') do | |
| MediaDailyReferrerCampaignReport.uncached do | |
| media_daily_referrer_campaign_reports = MediaDailyReferrerCampaignReport.limit(50_000) | |
| media_daily_referrer_campaign_reports.find_each {|r| r.id } | |
| end | |
| end | |
| end |
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