diff options
Diffstat (limited to 'src/couch/src/couch_db_updater.erl')
-rw-r--r-- | src/couch/src/couch_db_updater.erl | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/src/couch/src/couch_db_updater.erl b/src/couch/src/couch_db_updater.erl index a2de3bc60..acb9ec1c9 100644 --- a/src/couch/src/couch_db_updater.erl +++ b/src/couch/src/couch_db_updater.erl @@ -504,23 +504,24 @@ merge_rev_trees(Limit, MergeConflicts, [NewDocs|RestDocsList], [OldDocInfo|RestOldInfo], AccNewInfos, AccRemoveSeqs, AccSeq) -> erlang:put(last_id_merged, OldDocInfo#full_doc_info.id), % for debugging NewDocInfo0 = lists:foldl(fun({Client, NewDoc}, OldInfoAcc) -> - merge_rev_tree(OldInfoAcc, NewDoc, Client, Limit, MergeConflicts) + merge_rev_tree(OldInfoAcc, NewDoc, Client, MergeConflicts) end, OldDocInfo, NewDocs), + NewDocInfo1 = maybe_stem_full_doc_info(NewDocInfo0, Limit), % When MergeConflicts is false, we updated #full_doc_info.deleted on every % iteration of merge_rev_tree. However, merge_rev_tree does not update % #full_doc_info.deleted when MergeConflicts is true, since we don't need % to know whether the doc is deleted between iterations. Since we still % need to know if the doc is deleted after the merge happens, we have to % set it here. - NewDocInfo1 = case MergeConflicts of + NewDocInfo2 = case MergeConflicts of true -> - NewDocInfo0#full_doc_info{ - deleted = couch_doc:is_deleted(NewDocInfo0) + NewDocInfo1#full_doc_info{ + deleted = couch_doc:is_deleted(NewDocInfo1) }; false -> - NewDocInfo0 + NewDocInfo1 end, - if NewDocInfo1 == OldDocInfo -> + if NewDocInfo2 == OldDocInfo -> % nothing changed merge_rev_trees(Limit, MergeConflicts, RestDocsList, RestOldInfo, AccNewInfos, AccRemoveSeqs, AccSeq); @@ -529,7 +530,7 @@ merge_rev_trees(Limit, MergeConflicts, [NewDocs|RestDocsList], % important to note that the update_seq on OldDocInfo should % be identical to the value on NewDocInfo1. OldSeq = OldDocInfo#full_doc_info.update_seq, - NewDocInfo2 = NewDocInfo1#full_doc_info{ + NewDocInfo3 = NewDocInfo2#full_doc_info{ update_seq = AccSeq + 1 }, RemoveSeqs = case OldSeq of @@ -537,10 +538,10 @@ merge_rev_trees(Limit, MergeConflicts, [NewDocs|RestDocsList], _ -> [OldSeq | AccRemoveSeqs] end, merge_rev_trees(Limit, MergeConflicts, RestDocsList, RestOldInfo, - [NewDocInfo2|AccNewInfos], RemoveSeqs, AccSeq+1) + [NewDocInfo3|AccNewInfos], RemoveSeqs, AccSeq+1) end. -merge_rev_tree(OldInfo, NewDoc, Client, Limit, false) +merge_rev_tree(OldInfo, NewDoc, Client, false) when OldInfo#full_doc_info.deleted -> % We're recreating a document that was previously % deleted. To check that this is a recreation from @@ -574,7 +575,7 @@ merge_rev_tree(OldInfo, NewDoc, Client, Limit, false) % Merge our modified new doc into the tree #full_doc_info{rev_tree=OldTree} = OldInfo, NewTree0 = couch_doc:to_path(NewDoc2), - case couch_key_tree:merge(OldTree, NewTree0, Limit) of + case couch_key_tree:merge(OldTree, NewTree0) of {NewTree1, new_leaf} -> % We changed the revision id so inform the caller send_result(Client, NewDoc, {ok, {OldPos+1, NewRevId}}), @@ -589,7 +590,7 @@ merge_rev_tree(OldInfo, NewDoc, Client, Limit, false) send_result(Client, NewDoc, conflict), OldInfo end; -merge_rev_tree(OldInfo, NewDoc, Client, Limit, false) -> +merge_rev_tree(OldInfo, NewDoc, Client, false) -> % We're attempting to merge a new revision into an % undeleted document. To not be a conflict we require % that the merge results in extending a branch. @@ -597,7 +598,7 @@ merge_rev_tree(OldInfo, NewDoc, Client, Limit, false) -> OldTree = OldInfo#full_doc_info.rev_tree, NewTree0 = couch_doc:to_path(NewDoc), NewDeleted = NewDoc#doc.deleted, - case couch_key_tree:merge(OldTree, NewTree0, Limit) of + case couch_key_tree:merge(OldTree, NewTree0) of {NewTree, new_leaf} when not NewDeleted -> OldInfo#full_doc_info{ rev_tree = NewTree, @@ -615,14 +616,23 @@ merge_rev_tree(OldInfo, NewDoc, Client, Limit, false) -> send_result(Client, NewDoc, conflict), OldInfo end; -merge_rev_tree(OldInfo, NewDoc, _Client, Limit, true) -> +merge_rev_tree(OldInfo, NewDoc, _Client, true) -> % We're merging in revisions without caring about % conflicts. Most likely this is a replication update. OldTree = OldInfo#full_doc_info.rev_tree, NewTree0 = couch_doc:to_path(NewDoc), - {NewTree, _} = couch_key_tree:merge(OldTree, NewTree0, Limit), + {NewTree, _} = couch_key_tree:merge(OldTree, NewTree0), OldInfo#full_doc_info{rev_tree = NewTree}. +maybe_stem_full_doc_info(#full_doc_info{rev_tree = Tree} = Info, Limit) -> + case config:get_boolean("couchdb", "stem_interactive_updates", true) of + true -> + Stemmed = couch_key_tree:stem(Tree, Limit), + Info#full_doc_info{rev_tree = Stemmed}; + false -> + Info + end. + update_docs_int(Db, DocsList, LocalDocs, MergeConflicts, FullCommit) -> UpdateSeq = couch_db_engine:get_update_seq(Db), RevsLimit = couch_db_engine:get_revs_limit(Db), |