add index to last connection for improved search speed

Data/Migrations/MySql/20230124030137_AddLastConnectionIndexEFClient.cs

@@ -0,0 +1,24 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Data.Migrations.MySql
+{
+    public partial class AddLastConnectionIndexEFClient : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateIndex(
+                name: "IX_EFClients_LastConnection",
+                table: "EFClients",
+                column: "LastConnection");
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropIndex(
+                name: "IX_EFClients_LastConnection",
+                table: "EFClients");
+        }
+    }
+}

Data/Migrations/MySql/MySqlDatabaseContextModelSnapshot.cs

@@ -96,6 +96,8 @@ namespace Data.Migrations.MySql
 
                     b.HasIndex("CurrentAliasId");
 
+                    b.HasIndex("LastConnection");
+
                     b.HasIndex("NetworkId");
 
                     b.ToTable("EFClients", (string)null);