fix install query and upgrade

sql/install/psgdpr_consent.sql

@@ -6,5 +6,5 @@ CREATE TABLE IF NOT EXISTS `PREFIX_psgdpr_consent` (
   error_message TEXT,
   date_add DATETIME NOT NULL,
   date_upd DATETIME NOT NULL,
-  PRIMARY KEY (id_gdpr_consent, id_module)
+  PRIMARY KEY (id_gdpr_consent)
 ) ENGINE InnoDB DEFAULT CHARSET = UTF8;

upgrade/upgrade-2.0.1.php

@@ -0,0 +1,43 @@
+<?php
+
+/**
+ * Copyright since 2007 PrestaShop SA and Contributors
+ * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Academic Free License 3.0 (AFL-3.0)
+ * that is bundled with this package in the file LICENSE.md.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/AFL-3.0
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@prestashop.com so we can send you a copy immediately.
+ *
+ * @author    PrestaShop SA <contact@prestashop.com>
+ * @copyright Since 2007 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/AFL-3.0 Academic Free License 3.0 (AFL-3.0)
+ */
+if (!defined('_PS_VERSION_')) {
+    exit;
+}
+
+/**
+ * @param Psgdpr $module
+ *
+ * @return bool
+ */
+function upgrade_module_2_0_1($module)
+{
+    $primaryKeyColumn = 'id_gdpr_consent';
+
+    $query = sprintf(
+        'ALTER TABLE %spsgdpr_consent DROP PRIMARY KEY, ADD PRIMARY KEY (%s)',
+        _DB_PREFIX_,
+        $primaryKeyColumn
+    );
+
+    \Db::getInstance()->execute($query);
+
+    return true;
+}