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# frozen_string_literal: true
class DropTemporaryIndexesForPrimaryEmailMigration < Gitlab::Database::Migration[1.0]
USERS_INDEX = :index_users_on_id_for_primary_email_migration
EMAIL_INDEX = :index_emails_on_email_user_id
disable_ddl_transaction!
def up
remove_concurrent_index_by_name :users, USERS_INDEX
remove_concurrent_index_by_name :emails, EMAIL_INDEX
end
def down
unless index_exists_by_name?(:users, USERS_INDEX)
disable_statement_timeout do
execute <<~SQL
CREATE INDEX CONCURRENTLY #{USERS_INDEX}
ON users (id) INCLUDE (email, confirmed_at)
WHERE confirmed_at IS NOT NULL
SQL
end
end
add_concurrent_index :emails, [:email, :user_id], name: EMAIL_INDEX
end
end
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