Answers for "laravel migration do you need to remove index when removing column"

laravel migration remove column

public function up()
{
  Schema::table('table', function($table) {
    $table->dropColumn('column_name');
  });
}

delete rows by migration laravel

Comment::where('post_id',$id)->delete();

// in down migration

    public function down()
    {
        Schema::table('package_types', function (Blueprint $table) {
            \App\Models\PackageType::query()->where('id','gt',1)->delete();
        });
    }