21 lines
584 B
Ruby
21 lines
584 B
Ruby
# frozen_string_literal: true
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require "benchmark/ips"
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require File.expand_path("../../config/environment", __FILE__)
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conn = ActiveRecord::Base.connection.raw_connection
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Benchmark.ips do |b|
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b.report("simple") { User.first.name }
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b.report("simple with select") { User.select("name").first.name }
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b.report("pluck with first") { User.pluck(:name).first }
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b.report("pluck with limit") { User.limit(1).pluck(:name).first }
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b.report("pluck with pluck_first") { User.pluck_first(:name) }
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b.report("raw") { conn.exec("SELECT name FROM users LIMIT 1").getvalue(0, 0) }
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end
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