fix review comments
Project: http://git-wip-us.apache.org/repos/asf/trafodion/repo
Commit: http://git-wip-us.apache.org/repos/asf/trafodion/commit/9e5b5844
Tree: http://git-wip-us.apache.org/repos/asf/trafodion/tree/9e5b5844
Diff: http://git-wip-us.apache.org/repos/asf/trafodion/diff/9e5b5844
fix review comments
Project: http://git-wip-us.apache.org/repos/asf/trafodion/repo
Commit: http://git-wip-us.apache.org/repos/asf/trafodion/commit/ab112eac
Tree: http://git-wip-us.apache.org/repos/asf/trafodion/tree/ab112eac
Diff: http://git-wip-us.apache.org/repos/asf/trafodion/diff/ab112eac