CREATE TABLE {$NAMESPACE}_differential.differential_viewstate (
  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
  viewerPHID VARBINARY(64) NOT NULL,
  objectPHID VARBINARY(64) NOT NULL,
  viewState LONGTEXT NOT NULL COLLATE {$COLLATE_TEXT},
  dateCreated INT UNSIGNED NOT NULL,
  dateModified INT UNSIGNED NOT NULL,
  UNIQUE KEY `key_viewer` (viewerPHID, objectPHID)
) ENGINE=InnoDB, COLLATE {$COLLATE_TEXT};