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Filter PeopleController#index on thieves #1

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@eac eac commented Mar 27, 2019

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@@ -1,4 +1,6 @@
class PeopleController < ApplicationController
def index
@people = Person.where(occupation: 'thief')
render @people

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  • Index Scan: mysql reads 500000 rows from people via index_people_on_occupation (occupation).
  • Results: mysql returns 22.0mb (500000 rows) to the client.
  • Estimated query time: 8.72s

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