PIG-3818: PIG-2499 is accidently reverted

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1579446 13f79535-47bb-0310-9956-ffa450edef68
PIG-3818: PIG-2499 is accidently reverted

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1579447 13f79535-47bb-0310-9956-ffa450edef68