Laravel 8:迁移如何添加超过1k个字符的字符串？

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class AddLongStringToTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('table_name', function (Blueprint $table) {
            $table->text('column_name')->after('previous_column')->nullable();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('table_name', function (Blueprint $table) {
            $table->dropColumn('column_name');
        });
    }
}