laravel_sketch/database/migrations/2023_04_28_071852_create_goods_table.php

<?php

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

return new class extends Migration {
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('spec', function (Blueprint $table) {
            $table->id();
            $table->string("name")->default("");
            $table->string("extra", 2000)->default("");
            $table->unsignedInteger("index_weight")->default(0);
            $table->unsignedInteger("category_weight")->default(0);
            $table->unsignedInteger("search_weight")->default(0);
            $table->unsignedTinyInteger("is_custom")->default(0)->comment("是否自定义");
            $table->timestamps();
            $table->softDeletes();
        });
        Schema::create("spec_attr", function (Blueprint $t) {
            $t->id();
            $t->unsignedInteger("spec_id");
            $t->string("name");
            $t->timestamps();
            $t->softDeletes();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('spec');
        Schema::dropIfExists('spec_attr');
    }
};