diff --git a/lib/Db/MySQL/Driver.php b/lib/Db/MySQL/Driver.php
index 80feff7..69c1650 100644
--- a/lib/Db/MySQL/Driver.php
+++ b/lib/Db/MySQL/Driver.php
@@ -13,7 +13,7 @@ use JKingWeb\Arsse\Db\ExceptionInput;
 use JKingWeb\Arsse\Db\ExceptionTimeout;
 
 class Driver extends \JKingWeb\Arsse\Db\AbstractDriver {
-    const SQL_MODE = "ANSI_QUOTES,HIGH_NOT_PRECEDENCE,NO_BACKSLASH_ESCAPES,NO_ENGINE_SUBSTITUTION,ONLY_FULL_GROUP_BY,PIPES_AS_CONCAT,STRICT_ALL_TABLES";
+    const SQL_MODE = "ANSI_QUOTES,HIGH_NOT_PRECEDENCE,NO_BACKSLASH_ESCAPES,NO_ENGINE_SUBSTITUTION,PIPES_AS_CONCAT,STRICT_ALL_TABLES";
     const TRANSACTIONAL_LOCKS = false;
 
     protected $db;
@@ -72,7 +72,7 @@ class Driver extends \JKingWeb\Arsse\Db\AbstractDriver {
     public function sqlToken(string $token): string {
         switch (strtolower($token)) {
             case "nocase":
-                return '"utf8mb4_unicode_nopad_ci"';
+                return '"utf8mb4_unicode_ci"';
             default:
                 return $token;
         }
@@ -120,7 +120,7 @@ class Driver extends \JKingWeb\Arsse\Db\AbstractDriver {
             try {
                 $this->exec("SET lock_wait_timeout = 1; LOCK TABLES $tables");
             } finally {
-                $this->exec("SET lock_wait_timeout = 0");
+                $this->exec("SET lock_wait_timeout = 60");
             }
         }
         return true;
diff --git a/lib/Db/PDOError.php b/lib/Db/PDOError.php
index 6cb615c..dc3baab 100644
--- a/lib/Db/PDOError.php
+++ b/lib/Db/PDOError.php
@@ -44,6 +44,8 @@ trait PDOError {
                                 return [ExceptionTimeout::class, 'general', $err[2]];
                             case 1364:
                                 return [ExceptionInput::class, "constraintViolation", $err[2]];
+                            case 1366:
+                                return [ExceptionInput::class, 'engineTypeViolation', $err[2]];
                         }
                         break;
                 }
diff --git a/sql/MySQL/1.sql b/sql/MySQL/1.sql
index 14e780b..eb4ce5f 100644
--- a/sql/MySQL/1.sql
+++ b/sql/MySQL/1.sql
@@ -28,6 +28,6 @@ create table arsse_label_members (
     primary key(label,article)
 ) character set utf8mb4;
 
-alter table arsse_marks add column note longtext not null default '';
+alter table arsse_marks add column note longtext;
 
 update arsse_meta set value = '2' where `key` = 'schema_version';
diff --git a/sql/MySQL/2.sql b/sql/MySQL/2.sql
index d5a1a93..d63cbb6 100644
--- a/sql/MySQL/2.sql
+++ b/sql/MySQL/2.sql
@@ -4,20 +4,20 @@
 
 -- Please consult the SQLite 3 schemata for commented version
 
-alter table arsse_users default character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_folders default character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_feeds default character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_subscriptions default character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_articles default character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_categories default character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_labels default character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
+alter table arsse_users default character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_folders default character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_feeds default character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_subscriptions default character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_articles default character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_categories default character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_labels default character set utf8mb4 collate utf8mb4_unicode_ci;
 
-alter table arsse_users convert to character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_folders convert to character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_feeds convert to character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_subscriptions convert to character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_articles convert to character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_categories convert to character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
-alter table arsse_labels convert to character set utf8mb4 collate utf8mb4_unicode_nopad_ci;
+alter table arsse_users convert to character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_folders convert to character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_feeds convert to character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_subscriptions convert to character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_articles convert to character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_categories convert to character set utf8mb4 collate utf8mb4_unicode_ci;
+alter table arsse_labels convert to character set utf8mb4 collate utf8mb4_unicode_ci;
 
 update arsse_meta set value = '3' where `key` = 'schema_version';