Merge pull request mautic#1213 from acquia/MAUT-5072

Segments are very slow to build

app/migrations/Version20210112162046.php

@@ -0,0 +1,65 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * @copyright   2020 Mautic Contributors. All rights reserved.
+ * @author      Mautic
+ * @link        https://mautic.org
+ * @license     GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html
+ */
+
+namespace Mautic\Migrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Mautic\CoreBundle\Doctrine\AbstractMauticMigration;
+
+final class Version20210112162046 extends AbstractMauticMigration
+{
+    private const TABLE_NAME = 'sync_object_mapping';
+    private const INDEX_NAME = 'integration_integration_object_name_last_sync_date';
+
+    public function preUp(Schema $schema): void
+    {
+        $this->skipIf(
+            $this->indexExists($schema),
+            sprintf('Index `%s` already exists. Skipping the migration', static::INDEX_NAME)
+        );
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql(sprintf(
+            'ALTER TABLE `%s` ADD INDEX `%s` (`integration`, `internal_object_name`, `last_sync_date`);',
+            $this->getTableName(),
+            static::INDEX_NAME
+        ));
+    }
+
+    public function preDown(Schema $schema): void
+    {
+        $this->skipIf(
+            !$this->indexExists($schema),
+            sprintf('Index `%s` doesn\'t exist. Skipping reverting the migration', static::INDEX_NAME)
+        );
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql(sprintf(
+            'ALTER TABLE `%s` DROP INDEX `%s`;',
+            $this->getTableName(),
+            static::INDEX_NAME
+        ));
+    }
+
+    private function getTableName(): string
+    {
+        return $this->prefix.static::TABLE_NAME;
+    }
+
+    private function indexExists(Schema $schema): bool
+    {
+        return $schema->getTable($this->getTableName())->hasIndex(static::INDEX_NAME);
+    }
+}