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# frozen_string_literal: true
class NullifyUsersRole < ActiveRecord::Migration[5.2]
include Gitlab::Database::MigrationHelpers
disable_ddl_transaction!
INDEX_NAME = 'partial_index_users_updated_at_for_cleaning_mistaken_values'
DOWNTIME = false
def up
# expected updated users count is around 10K
# rubocop: disable Migration/UpdateLargeTable
add_concurrent_index(:users, :updated_at, where: 'role = 0', name: INDEX_NAME)
update_column_in_batches(:users, :role, nil) do |table, query|
query.where(table[:updated_at].lt('2019-11-05 12:08:00')).where(table[:role].eq(0))
end
remove_concurrent_index_by_name(:users, INDEX_NAME)
end
def down
# noop
end
end
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