[2/6] kylin git commit: TopN merge performance

TopN merge performance Project: http://git-wip-us.apache.org/repos/asf/kylin/repo Commit: http://git-wip-us.apache.org/repos/asf/kylin/commit/e7d31938 Tree: http://git-wip-us.apache.org/repos/asf/kylin/tree/e7d31938 Diff: http://git-wip-us.apache.org/repos/asf/kylin/diff/e7d31938 Branch: refs/he

[2/6] kylin git commit: TopN merge performance

TopN merge performance Project: http://git-wip-us.apache.org/repos/asf/kylin/repo Commit: http://git-wip-us.apache.org/repos/asf/kylin/commit/e7d31938 Tree: http://git-wip-us.apache.org/repos/asf/kylin/tree/e7d31938 Diff: http://git-wip-us.apache.org/repos/asf/kylin/diff/e7d31938 Branch: refs/he