add aggr

backend/app/Service/ContinuousAggregateRefresher.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service;
+
+use Hyperf\DbConnection\Db;
+
+/**
+ * TimescaleDB 连续聚合刷新实现
+ *
+ * 调用 PG 的 refresh_continuous_aggregate 存储过程，按整日窗口刷新。
+ */
+class ContinuousAggregateRefresher implements AggregateRefresherInterface
+{
+    public function refresh(string $view, string $refresh_date): void
+    {
+        $start = sprintf("'%s 00:00:00+00'::timestamptz", $refresh_date);
+        $end   = sprintf("'%s 23:59:59.999999+00'::timestamptz", $refresh_date);
+
+        // view 在 P23.2 中硬编码为 'orders_daily_by_created'，但仍走 PDO quote 防御
+        $quoted_view = Db::getPdo()->quote($view);
+
+        Db::statement(sprintf(
+            'CALL refresh_continuous_aggregate(%s, %s, %s)',
+            $quoted_view,
+            $start,
+            $end
+        ));
+    }
+}