diff -r a94b172c3a93 -r 1a0ac419f714 src/java/de/uapcore/lightpit/Constants.java
--- a/src/java/de/uapcore/lightpit/Constants.java	Sun Dec 31 17:43:39 2017 +0100
+++ b/src/java/de/uapcore/lightpit/Constants.java	Sat Mar 31 18:11:09 2018 +0200
@@ -59,6 +59,11 @@
     public static final String CTX_ATTR_DB_SCHEMA = "db-schema";
     
     /**
+     * Name for the context parameter optionally specifying a database dialect.
+     */
+    public static final String CTX_ATTR_DB_DIALECT = "db-dialect";
+    
+    /**
      * Key for the request attribute containing the class name of the currently dispatching module.
      */
     public static final String REQ_ATTR_MODULE_CLASSNAME = fqn(AbstractLightPITServlet.class, "moduleClassname");