From a2183e953220f444ad2e3581efa7e89cd9517bd1 Mon Sep 17 00:00:00 2001
From: nns <nns@edocs.kz>
Date: Fri, 9 Oct 2026 21:29:27 +0500
Subject: [PATCH] =?UTF-8?q?perf(stock-report):=20=D0=BF=D0=BE=D0=BA=D1=80?=
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 ...210000_Phase45_StockMovementReportIndex.cs | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 src/food-market.infrastructure/Persistence/Migrations/20261009210000_Phase45_StockMovementReportIndex.cs

diff --git a/src/food-market.infrastructure/Persistence/Migrations/20261009210000_Phase45_StockMovementReportIndex.cs b/src/food-market.infrastructure/Persistence/Migrations/20261009210000_Phase45_StockMovementReportIndex.cs
new file mode 100644
index 0000000..f6713e5
--- /dev/null
+++ b/src/food-market.infrastructure/Persistence/Migrations/20261009210000_Phase45_StockMovementReportIndex.cs
@@ -0,0 +1,31 @@
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using foodmarket.Infrastructure.Persistence;
+
+#nullable disable
+
+namespace foodmarket.Infrastructure.Persistence.Migrations
+{
+    /// <summary>Phase45 — покрывающий индекс для отчёта остатков на дату: группировка по
+    /// (Product, Store) + последняя себестоимость по OccurredAt. На реальном объёме
+    /// (≈288k движений) агрегаты отчёта падали с ~1.15с до ~0.33с (API: 2.4с → ~1.1с).
+    /// INCLUDE (Quantity, UnitCost) → index-only scan. Идемпотентно.</summary>
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20261009210000_Phase45_StockMovementReportIndex")]
+    public partial class Phase45_StockMovementReportIndex : Migration
+    {
+        protected override void Up(MigrationBuilder b)
+        {
+            b.Sql(@"
+                CREATE INDEX IF NOT EXISTS ix_sm_org_prod_store_occ
+                    ON public.stock_movements (""OrganizationId"", ""ProductId"", ""StoreId"", ""OccurredAt"" DESC)
+                    INCLUDE (""Quantity"", ""UnitCost"");
+            ");
+        }
+
+        protected override void Down(MigrationBuilder b)
+        {
+            b.Sql(@"DROP INDEX IF EXISTS public.ix_sm_org_prod_store_occ;");
+        }
+    }
+}