Hi, It is easier to elaborate my question with an example.
My lucene version is 4.10.4 I use SortField sortField = new SortField(null, SortField.Type.DOC, true); sort = new Sort(sortField); return new SortingMergePolicy(new TieredMergePolicy(), sort); to make sure my index merger will make fresh documents in the beginning of merged segment. TieredMergePolicy will chose biggest segments to merge, so the merge order should be size descending order. Say we have 2 segments, segment 0 size is smaller than segment 1, after size sorting merge readers are (segment 1, segment 0), after merge all docs in segment 1 are in front of segment 0. This doesn't satisfy my requirement. If merge readers will be restored to origin order after TieredMergePolicy findMerges, then this problem will be fixed. Any problem of this solution?
