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class AddForeignKeyToIssueAuthor < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
def up
add_concurrent_foreign_key(:issues, :users, column: :author_id, on_delete: :nullify)
end
def down
remove_foreign_key(:issues, column: :author_id)
end
end
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