diff --git a/resources/sql/autopatches/20170914.ref.01.position.sql b/resources/sql/autopatches/20170914.ref.01.position.sql
new file mode 100644
index 0000000000..2d0a505d17
--- /dev/null
+++ b/resources/sql/autopatches/20170914.ref.01.position.sql
@@ -0,0 +1,6 @@
+CREATE TABLE {$NAMESPACE}_repository.repository_refposition (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  cursorID INT UNSIGNED NOT NULL,
+  commitIdentifier VARCHAR(40) NOT NULL COLLATE {$COLLATE_TEXT},
+  isClosed BOOL NOT NULL
+) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index 282e5aaf62..c535d46322 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -3863,6 +3863,7 @@ phutil_register_library_map(array(
     'PhabricatorRepositoryRefCursorPHIDType' => 'applications/repository/phid/PhabricatorRepositoryRefCursorPHIDType.php',
     'PhabricatorRepositoryRefCursorQuery' => 'applications/repository/query/PhabricatorRepositoryRefCursorQuery.php',
     'PhabricatorRepositoryRefEngine' => 'applications/repository/engine/PhabricatorRepositoryRefEngine.php',
+    'PhabricatorRepositoryRefPosition' => 'applications/repository/storage/PhabricatorRepositoryRefPosition.php',
     'PhabricatorRepositoryRepositoryPHIDType' => 'applications/repository/phid/PhabricatorRepositoryRepositoryPHIDType.php',
     'PhabricatorRepositorySchemaSpec' => 'applications/repository/storage/PhabricatorRepositorySchemaSpec.php',
     'PhabricatorRepositorySearchEngine' => 'applications/repository/query/PhabricatorRepositorySearchEngine.php',
@@ -9434,6 +9435,7 @@ phutil_register_library_map(array(
     'PhabricatorRepositoryRefCursorPHIDType' => 'PhabricatorPHIDType',
     'PhabricatorRepositoryRefCursorQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'PhabricatorRepositoryRefEngine' => 'PhabricatorRepositoryEngine',
+    'PhabricatorRepositoryRefPosition' => 'PhabricatorRepositoryDAO',
     'PhabricatorRepositoryRepositoryPHIDType' => 'PhabricatorPHIDType',
     'PhabricatorRepositorySchemaSpec' => 'PhabricatorConfigSchemaSpec',
     'PhabricatorRepositorySearchEngine' => 'PhabricatorApplicationSearchEngine',
diff --git a/src/applications/repository/storage/PhabricatorRepositoryRefPosition.php b/src/applications/repository/storage/PhabricatorRepositoryRefPosition.php
new file mode 100644
index 0000000000..838037b1a0
--- /dev/null
+++ b/src/applications/repository/storage/PhabricatorRepositoryRefPosition.php
@@ -0,0 +1,26 @@
+<?php
+
+final class PhabricatorRepositoryRefPosition
+  extends PhabricatorRepositoryDAO {
+
+  protected $cursorID;
+  protected $commitIdentifier;
+  protected $isClosed = 0;
+
+  protected function getConfiguration() {
+    return array(
+      self::CONFIG_TIMESTAMPS => false,
+      self::CONFIG_COLUMN_SCHEMA => array(
+        'commitIdentifier' => 'text40',
+        'isClosed' => 'bool',
+      ),
+      self::CONFIG_KEY_SCHEMA => array(
+        'key_position' => array(
+          'columns' => array('cursorID', 'commitIdentifier'),
+          'unique' => true,
+        ),
+      ),
+    ) + parent::getConfiguration();
+  }
+
+}