Added additional index to episodes table to speed up certain queries.

src/NzbDrone.Core/Datastore/Migration/095_add_additional_episodes_index.cs

@@ -0,0 +1,16 @@
+using FluentMigrator;
+using NzbDrone.Core.Datastore.Migration.Framework;
+
+namespace NzbDrone.Core.Datastore.Migration
+{
+    [Migration(95)]
+    public class add_additional_episodes_index : NzbDroneMigrationBase
+    {
+        protected override void MainDbUpgrade()
+        {
+            Create.Index().OnTable("Episodes").OnColumn("SeriesId").Ascending()
+                                              .OnColumn("SeasonNumber").Ascending()
+                                              .OnColumn("EpisodeNumber").Ascending();
+        }
+    }
+}

src/NzbDrone.Core/NzbDrone.Core.csproj

@@ -253,6 +253,7 @@
     <Compile Include="Datastore\Migration\069_quality_proper.cs" />
     <Compile Include="Datastore\Migration\070_delay_profile.cs" />
     <Compile Include="Datastore\Migration\096_disable_kickass.cs" />
+    <Compile Include="Datastore\Migration\095_add_additional_episodes_index.cs" />
     <Compile Include="Datastore\Migration\101_add_ultrahd_quality_in_profiles.cs" />
     <Compile Include="Datastore\Migration\071_unknown_quality_in_profile.cs" />
     <Compile Include="Datastore\Migration\072_history_grabid.cs" />