Merge branch 'main' of ssh://gitlab.fcpays.cc:2222/root/coruna-lab

database/migrations/2026_09_26_200000_add_country_indexes_for_analytics.php

@@ -0,0 +1,35 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * 为数据分析页国家维度聚合与设备列表国家筛选添加复合索引。
+     * 参考 os_version 维度的 (created_at, os, os_version) 复合索引做法，
+     * 让按日期范围 + GROUP BY country 的聚合查询能走索引扫描。
+     */
+    public function up(): void
+    {
+        Schema::table('page_visits', function (Blueprint $table) {
+            $table->index(['created_at', 'country'], 'page_visits_created_at_country_index');
+        });
+
+        Schema::table('devices', function (Blueprint $table) {
+            $table->index(['created_at', 'country'], 'devices_created_at_country_index');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('page_visits', function (Blueprint $table) {
+            $table->dropIndex('page_visits_created_at_country_index');
+        });
+
+        Schema::table('devices', function (Blueprint $table) {
+            $table->dropIndex('devices_created_at_country_index');
+        });
+    }
+};