From 3d3292fd3d29e21abfee49394522dc365e03f66c Mon Sep 17 00:00:00 2001
From: ta264 <ta264@users.noreply.github.com>
Date: Thu, 14 Oct 2021 21:53:41 +0100
Subject: [PATCH] Fixed: Add missing index to improve book import performance

---
 .../Datastore/Migration/015_fix_indexes.cs      | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 src/NzbDrone.Core/Datastore/Migration/015_fix_indexes.cs

diff --git a/src/NzbDrone.Core/Datastore/Migration/015_fix_indexes.cs b/src/NzbDrone.Core/Datastore/Migration/015_fix_indexes.cs
new file mode 100644
index 000000000..35b64aef6
--- /dev/null
+++ b/src/NzbDrone.Core/Datastore/Migration/015_fix_indexes.cs
@@ -0,0 +1,17 @@
+using FluentMigrator;
+using NzbDrone.Core.Datastore.Migration.Framework;
+
+namespace NzbDrone.Core.Datastore.Migration
+{
+    [Migration(15)]
+    public class FixIndexes : NzbDroneMigrationBase
+    {
+        protected override void MainDbUpgrade()
+        {
+            Delete.Index().OnTable("Books").OnColumn("AuthorId");
+            Delete.Index().OnTable("Books").OnColumns("AuthorId", "ReleaseDate");
+
+            Create.Index().OnTable("Editions").OnColumn("BookId");
+        }
+    }
+}