Some query optimisations when rendering status, dashboard, about and FTN list pages

database/migrations/2024_09_10_indexes.php

@@ -0,0 +1,38 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+	/**
+	 * Run the migrations.
+	 *
+	 * @return void
+	 */
+	public function up()
+	{
+		Schema::table('echomails', function (Blueprint $table) {
+			$table->index(['created_at']);
+			$table->index(['datetime']);
+		});
+
+		DB::statement('CREATE INDEX echomail_seenby_unsent ON echomail_seenby (address_id,echomail_id) WHERE sent_at IS NULL AND export_at IS NOT NULL;');
+	}
+
+	/**
+	 * Reverse the migrations.
+	 *
+	 * @return void
+	 */
+	public function down()
+	{
+		Schema::table('echomails', function (Blueprint $table) {
+			$table->dropIndex(['created_at']);
+			$table->dropIndex(['datetime']);
+		});
+
+		DB::statement('DROP INDEX echomail_seenby_unsent');
+	}
+};