diff --git a/engine/src/main/java/org/teiid/query/function/FunctionMethods.java b/engine/src/main/java/org/teiid/query/function/FunctionMethods.java
index cf0c42a86f..4f083a6d8f 100644
--- a/engine/src/main/java/org/teiid/query/function/FunctionMethods.java
+++ b/engine/src/main/java/org/teiid/query/function/FunctionMethods.java
@@ -1551,7 +1551,7 @@ public static Object session_id(CommandContext context) {
         return context.getConnectionId();
     }
     
-    @TeiidFunction(category=FunctionCategoryConstants.MISCELLANEOUS)
+    @TeiidFunction(category=FunctionCategoryConstants.MISCELLANEOUS, pushdown=PushDown.CANNOT_PUSHDOWN)
     public static String node_id() {
         return System.getProperty("jboss.node.name"); //$NON-NLS-1$
     }
@@ -1688,7 +1688,7 @@ public static int array_length(Object array) throws FunctionExecutionException,
 		 throw new FunctionExecutionException(QueryPlugin.Event.TEIID30416, QueryPlugin.Util.gs(QueryPlugin.Event.TEIID30416, array.getClass()));
 	}
 	
-	@TeiidFunction(category=FunctionCategoryConstants.SYSTEM, determinism = Determinism.COMMAND_DETERMINISTIC)
+	@TeiidFunction(category=FunctionCategoryConstants.SYSTEM, determinism = Determinism.COMMAND_DETERMINISTIC, pushdown=PushDown.CANNOT_PUSHDOWN)
 	public static int mvstatus(CommandContext context, String schemaName, String viewName) throws FunctionExecutionException, SQLException, QueryMetadataException, TeiidComponentException {
 	    Object id = context.getMetadata().getGroupID(schemaName + AbstractMetadataRecord.NAME_DELIM_CHAR + viewName);
         String statusTable = context.getMetadata().getExtensionProperty(id, MaterializationMetadataRepository.MATVIEW_STATUS_TABLE, false);
diff --git a/engine/src/main/java/org/teiid/query/function/SystemFunctionMethods.java b/engine/src/main/java/org/teiid/query/function/SystemFunctionMethods.java
index 705c711fc3..b03f2c8feb 100644
--- a/engine/src/main/java/org/teiid/query/function/SystemFunctionMethods.java
+++ b/engine/src/main/java/org/teiid/query/function/SystemFunctionMethods.java
@@ -23,6 +23,7 @@
 import org.teiid.adminapi.impl.SessionMetadata;
 import org.teiid.api.exception.query.FunctionExecutionException;
 import org.teiid.metadata.FunctionMethod.Determinism;
+import org.teiid.metadata.FunctionMethod.PushDown;
 import org.teiid.query.QueryPlugin;
 import org.teiid.query.function.metadata.FunctionCategoryConstants;
 import org.teiid.query.util.CommandContext;
@@ -31,12 +32,12 @@ public class SystemFunctionMethods {
 	
 	private static final int MAX_VARIABLES = 512;
 
-	@TeiidFunction(category=FunctionCategoryConstants.SYSTEM, nullOnNull=true, determinism=Determinism.COMMAND_DETERMINISTIC)
+	@TeiidFunction(category=FunctionCategoryConstants.SYSTEM, nullOnNull=true, determinism=Determinism.COMMAND_DETERMINISTIC, pushdown=PushDown.CANNOT_PUSHDOWN)
 	public static Object teiid_session_get(CommandContext context, String key) {
 		return context.getSessionVariable(key);
 	}
 	
-	@TeiidFunction(category=FunctionCategoryConstants.SYSTEM, determinism=Determinism.COMMAND_DETERMINISTIC)
+	@TeiidFunction(category=FunctionCategoryConstants.SYSTEM, determinism=Determinism.COMMAND_DETERMINISTIC, pushdown=PushDown.CANNOT_PUSHDOWN)
 	public static Object teiid_session_set(CommandContext context, String key, Object value) throws FunctionExecutionException {
 		SessionMetadata session = context.getSession();
 		Map<String, Object> variables = session.getSessionVariables();
diff --git a/engine/src/main/java/org/teiid/query/function/TeiidFunction.java b/engine/src/main/java/org/teiid/query/function/TeiidFunction.java
index 63f4597559..12de367036 100644
--- a/engine/src/main/java/org/teiid/query/function/TeiidFunction.java
+++ b/engine/src/main/java/org/teiid/query/function/TeiidFunction.java
@@ -37,6 +37,6 @@
 	String category();
 	boolean nullOnNull() default false;
 	Determinism determinism() default Determinism.DETERMINISTIC;
-    PushDown pushdown() default PushDown.CANNOT_PUSHDOWN;
+    PushDown pushdown() default PushDown.CAN_PUSHDOWN;
 	String alias()  default "";
 }
diff --git a/engine/src/main/java/org/teiid/query/function/source/XMLSystemFunctions.java b/engine/src/main/java/org/teiid/query/function/source/XMLSystemFunctions.java
index 51ac5d1ceb..955b402203 100644
--- a/engine/src/main/java/org/teiid/query/function/source/XMLSystemFunctions.java
+++ b/engine/src/main/java/org/teiid/query/function/source/XMLSystemFunctions.java
@@ -1254,7 +1254,7 @@ public static XMLOutputFactory getOutputFactory(boolean repairing) {
 		return f;
 	}
     
-	@TeiidFunction(category=FunctionCategoryConstants.XML)
+	@TeiidFunction(category=FunctionCategoryConstants.XML, nullOnNull=true)
 	public static XMLType xmlText(String val) throws XMLStreamException, FactoryConfigurationError, IOException, TransformerException {
 		//TODO: see if there is a less involved way to escape
 		StringWriter writer = new StringWriter();