commit 0bf4289f0aea348761bbdf338e5693e7b93a0719
Author: Ilias Dimopoulos <idimopoulos@hotmail.com>
Date:   Tue Apr 12 17:21:10 2016 +0200

    Patch extended length

diff --git a/search_api.install b/search_api.install
index 3ed7dd8..2777f88 100644
--- a/search_api.install
+++ b/search_api.install
@@ -30,7 +30,7 @@ function search_api_schema() {
       'item_id' => array(
         'description' => 'The unique identifier of this item',
         'type' => 'varchar',
-        'length' => 50,
+        'length' => 150,
         'not null' => TRUE,
       ),
       'changed' => array(
diff --git a/search_api_db/src/Plugin/search_api/backend/Database.php b/search_api_db/src/Plugin/search_api/backend/Database.php
index 0f8fb68..dc22185 100644
--- a/search_api_db/src/Plugin/search_api/backend/Database.php
+++ b/search_api_db/src/Plugin/search_api/backend/Database.php
@@ -692,7 +692,7 @@ class Database extends BackendPluginBase {
         'fields' => array(
           'item_id' => array(
             'type' => 'varchar',
-            'length' => 50,
+            'length' => 150,
             'description' => 'The primary identifier of the item',
             'not null' => TRUE,
           ),
@@ -944,7 +944,7 @@ class Database extends BackendPluginBase {
           'fields' => array(
             'item_id' => array(
               'type' => 'varchar',
-              'length' => 50,
+              'length' => 150,
               'description' => 'The primary identifier of the item',
               'not null' => TRUE,
             ),