[couchdb] 08/13: Update pattern match for clarity

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davisp pushed a commit to branch COUCHDB-3287-pluggable-storage-engines
in repository https://gitbox.apache.org/repos/asf/couchdb.git

commit 0549843becc36f05ddaab1f87892003ea3f59650
Author: Paul J. Davis <pa...@gmail.com>
AuthorDate: Tue May 30 11:32:00 2017 -0500

    Update pattern match for clarity
---
 src/couch/src/couch_db.erl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/couch/src/couch_db.erl b/src/couch/src/couch_db.erl
index 0b24978..c3bc4e4 100644
--- a/src/couch/src/couch_db.erl
+++ b/src/couch/src/couch_db.erl
@@ -1206,7 +1206,10 @@ set_new_att_revpos(#doc{revs={RevPos,_Revs},atts=Atts0}=Doc) ->
     Atts = lists:map(
         fun(Att) ->
             case couch_att:fetch(data, Att) of
-                {_Fd, _Sp} -> Att; % already commited to disk, don't set new rev
+                % already commited to disk, don't set new rev
+                {stream, _} -> Att;
+                {Fd, _} when is_pid(Fd) -> Att;
+                % write required so update RevPos
                 _ -> couch_att:store(revpos, RevPos+1, Att)
             end
         end, Atts0),

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