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diff --git a/inc/classes/middleware/database/class_DatabaseConnection.php b/inc/classes/middleware/database/class_DatabaseConnection.php
index 736ea4b50..6f0a4e1ef 100644
--- a/inc/classes/middleware/database/class_DatabaseConnection.php
+++ b/inc/classes/middleware/database/class_DatabaseConnection.php
@@ -98,6 +98,15 @@ class DatabaseConnection extends BaseMiddleware implements DatabaseConnector, Re
 		$this->dbLayer = $dbLayer;
 	}
 
+	/**
+	 * Getter for index key
+	 *
+	 * @return	$indexKey	Index key
+	 */
+	public final function getIndexKey () {
+		return $this->dbLayer->getIndexKey();
+	}
+
 	/**
 	 * Runs a "select" statement on the database layer with given table name
 	 * and criteria. If this doesn't fail the result will be returned