add unique index on Users#email
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2 changed files with 7 additions and 1 deletions
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db/migrate/20211219074758_index_users_by_unique_email.rb
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db/migrate/20211219074758_index_users_by_unique_email.rb
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class IndexUsersByUniqueEmail < ActiveRecord::Migration[6.1]
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def change
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add_index :users, :email, unique: true
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end
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end
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