diff --git a/core/src/plugins/conf.sql/class.AJXP_SqlUser.php b/core/src/plugins/conf.sql/class.AJXP_SqlUser.php
index d6c38321b9..bb80586f4c 100755
--- a/core/src/plugins/conf.sql/class.AJXP_SqlUser.php
+++ b/core/src/plugins/conf.sql/class.AJXP_SqlUser.php
@@ -191,7 +191,7 @@ public function setPref($prefName, $prefValue)
                 // Update an existing rights row, because only some of the rights have changed.
                 } else {
 
-                    dibi::query('UPDATE [ajxp_user_prefs] SET ', Array('val'=>$prefValue), 'WHERE [login] = %s AND [name] = %s', $this->getId(), $prefName);
+                    dibi::query('UPDATE [ajxp_user_prefs] SET [val] = %bin WHERE [login] = %s AND [name] = %s', $prefValue, $this->getId(), $prefName);
 
                     $this->log('UPDATE PREFERENCE: [Login]: '.$this->getId().' [Preference]:'.$prefName.' [Value]:'.$prefValue);
                     $this->prefs[$prefName] = $prefValue;
diff --git a/core/src/plugins/conf.sql/class.sqlConfDriver.php b/core/src/plugins/conf.sql/class.sqlConfDriver.php
index 41f19fc238..7016cec857 100644
--- a/core/src/plugins/conf.sql/class.sqlConfDriver.php
+++ b/core/src/plugins/conf.sql/class.sqlConfDriver.php
@@ -94,9 +94,9 @@ public function _savePluginConfig($pluginId, $options)
     {
         $res_opts = dibi::query('SELECT COUNT(*) FROM [ajxp_plugin_configs] WHERE [id] = %s', $pluginId);
         if ($res_opts->fetchSingle()) {
-            dibi::query('UPDATE [ajxp_plugin_configs] SET [configs] = %s WHERE [id] = %s', serialize($options), $pluginId);
+            dibi::query('UPDATE [ajxp_plugin_configs] SET [configs] = %bin WHERE [id] = %s', serialize($options), $pluginId);
         } else {
-            dibi::query('INSERT INTO [ajxp_plugin_configs]', array('id' => $pluginId, 'configs' => serialize($options)));
+            dibi::query('INSERT INTO [ajxp_plugin_configs] ([id],[configs]) VALUES (%s,%bin)', $pluginId, serialize($options));
         }
     }
 
diff --git a/core/src/plugins/conf.sql/create.mysql b/core/src/plugins/conf.sql/create.mysql
index 512b488747..ff986da19d 100644
--- a/core/src/plugins/conf.sql/create.mysql
+++ b/core/src/plugins/conf.sql/create.mysql
@@ -16,7 +16,7 @@ CREATE TABLE IF NOT EXISTS ajxp_user_prefs (
 	rid INTEGER PRIMARY KEY AUTO_INCREMENT,
 	login VARCHAR(255) NOT NULL,
 	name VARCHAR(255) NOT NULL,
-	val VARCHAR(2000)
+	val BLOB
 );
 
 CREATE TABLE IF NOT EXISTS ajxp_user_bookmarks (
@@ -49,7 +49,7 @@ CREATE TABLE IF NOT EXISTS ajxp_repo_options (
 	oid INTEGER PRIMARY KEY AUTO_INCREMENT,
 	uuid VARCHAR(33) NOT NULL,
 	name VARCHAR(50) NOT NULL,
-	val VARCHAR(2000),
+	val BLOB,
 	INDEX (uuid)
 );
 
@@ -65,7 +65,7 @@ CREATE TABLE IF NOT EXISTS ajxp_groups (
 
 CREATE TABLE IF NOT EXISTS ajxp_plugin_configs (
   id VARCHAR(50) NOT NULL,
-  configs LONGTEXT NOT NULL,
+  configs LONGBLOB NOT NULL,
   PRIMARY KEY (id)
 );
 
diff --git a/core/src/plugins/conf.sql/create.pgsql b/core/src/plugins/conf.sql/create.pgsql
index 844b33d8d2..114c8ae891 100644
--- a/core/src/plugins/conf.sql/create.pgsql
+++ b/core/src/plugins/conf.sql/create.pgsql
@@ -15,7 +15,7 @@ CREATE TABLE IF NOT EXISTS ajxp_user_prefs (
   rid serial PRIMARY KEY,
   login varchar(255) NOT NULL,
   name varchar(255) NOT NULL,
-  val varchar(2000)
+  val bytea
 );
 
 CREATE TABLE IF NOT EXISTS ajxp_user_bookmarks (
@@ -48,7 +48,7 @@ CREATE TABLE IF NOT EXISTS ajxp_repo_options (
   oid serial PRIMARY KEY,
   uuid varchar(33) NOT NULL,
   name varchar(50) NOT NULL,
-  val varchar(2000)
+  val bytea
 );
 
 CREATE INDEX ajxp_repo_options_uuid_idx ON ajxp_repo_options (uuid);
@@ -66,7 +66,7 @@ CREATE TABLE IF NOT EXISTS ajxp_groups (
 
 CREATE TABLE IF NOT EXISTS ajxp_plugin_configs (
   id varchar(50) PRIMARY KEY,
-  configs text NOT NULL
+  configs bytea NOT NULL
 );
 
 CREATE TABLE IF NOT EXISTS ajxp_simple_store (
diff --git a/core/src/plugins/conf.sql/create.sqlite b/core/src/plugins/conf.sql/create.sqlite
index d5f5a37d1d..ed68f6e965 100644
--- a/core/src/plugins/conf.sql/create.sqlite
+++ b/core/src/plugins/conf.sql/create.sqlite
@@ -64,7 +64,7 @@ CREATE TABLE IF NOT EXISTS ajxp_groups (
 
 CREATE TABLE IF NOT EXISTS ajxp_plugin_configs (
   id text NOT NULL,
-  configs longtext NOT NULL
+  configs longblob NOT NULL
 );
 
 CREATE TABLE IF NOT EXISTS ajxp_simple_store (
diff --git a/core/src/plugins/mq.sql/create.mysql b/core/src/plugins/mq.sql/create.mysql
index ccf6d25cb0..cd20629687 100644
--- a/core/src/plugins/mq.sql/create.mysql
+++ b/core/src/plugins/mq.sql/create.mysql
@@ -1,8 +1,8 @@
 CREATE TABLE IF NOT EXISTS ajxp_simple_store (
    object_id VARCHAR(255) NOT NULL,
    store_id VARCHAR(50) NOT NULL,
-   serialized_data LONGTEXT NULL,
+   serialized_data LONGBLOB NULL,
    binary_data LONGBLOB NULL,
    related_object_id VARCHAR(255) NULL,
    PRIMARY KEY(object_id, store_id)
-);
\ No newline at end of file
+);
diff --git a/core/src/plugins/mq.sql/create.pgsql b/core/src/plugins/mq.sql/create.pgsql
index 4c47a7bbf6..b33164340a 100644
--- a/core/src/plugins/mq.sql/create.pgsql
+++ b/core/src/plugins/mq.sql/create.pgsql
@@ -1,7 +1,7 @@
 CREATE TABLE IF NOT EXISTS ajxp_simple_store (
   object_id varchar(255) NOT NULL,
   store_id varchar(50) NOT NULL,
-  serialized_data text,
+  serialized_data bytea,
   binary_data bytea,
   related_object_id varchar(255),
   PRIMARY KEY(object_id, store_id)
diff --git a/core/src/plugins/mq.sql/create.sqlite b/core/src/plugins/mq.sql/create.sqlite
index 0858981812..de1c183205 100644
--- a/core/src/plugins/mq.sql/create.sqlite
+++ b/core/src/plugins/mq.sql/create.sqlite
@@ -1,7 +1,7 @@
 CREATE TABLE IF NOT EXISTS ajxp_simple_store (
   object_id text NOT NULL,
   store_id text NOT NULL,
-  serialized_data longtext,
+  serialized_data blob,
   binary_data blob,
   related_object_id text DEFAULT NULL
 );