[2/5] kylin git commit: optimize SortedIteratorMergerWithLimit when only 1 shard

optimize SortedIteratorMergerWithLimit when only 1 shard temp Project: http://git-wip-us.apache.org/repos/asf/kylin/repo Commit: http://git-wip-us.apache.org/repos/asf/kylin/commit/85fcf019 Tree: http://git-wip-us.apache.org/repos/asf/kylin/tree/85fcf019 Diff: http://git-wip-us.apache.org/repos/

[2/5] kylin git commit: optimize SortedIteratorMergerWithLimit when only 1 shard

optimize SortedIteratorMergerWithLimit when only 1 shard temp Project: http://git-wip-us.apache.org/repos/asf/kylin/repo Commit: http://git-wip-us.apache.org/repos/asf/kylin/commit/85fcf019 Tree: http://git-wip-us.apache.org/repos/asf/kylin/tree/85fcf019 Diff: http://git-wip-us.apache.org/repos/