Add fast_view filter to changes clustered access
A changes feed can be filtered using view's btree
instead of a database btree, a feature known as fast_view.
This feature not implemented on a clustered interface,
however view filter automatically marked as fast_view
when ddoc has option seq_indexed enabled, which leads to
a crash of filtered replication.
This change allows fast_view filter to be processed
as a regular view filter when used on a clustered
interface.
diff --git a/src/couch_changes.erl b/src/couch_changes.erl
index beac089..b37aabf 100644
--- a/src/couch_changes.erl
+++ b/src/couch_changes.erl
@@ -281,7 +281,8 @@
_ ->
[]
end;
-filter(Db, DocInfo, {view, Style, DDoc, VName}) ->
+filter(Db, DocInfo, {FilterType, Style, DDoc, VName})
+ when FilterType == view; FilterType == fast_view ->
Docs = open_revs(Db, DocInfo, Style),
{ok, Passes} = couch_query_servers:filter_view(DDoc, VName, Docs),
filter_revs(Passes, Docs);
