SERVER-4549: MR: using both jsMode and inline mode does not yield any output

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mongo/db/commands/mr.h b/src/mongo/db/commands/mr.h
index 7b842e2d029..a1a18012168 100644
--- a/src/mongo/db/commands/mr.h
+++ b/src/mongo/db/commands/mr.h
@@ -285,6 +285,7 @@ namespace mongo {
 
             long long numEmits() const { if (_jsMode) return _scope->getNumberLongLong("_emitCt"); return _numEmits; }
             long long numReduces() const { if (_jsMode) return _scope->getNumberLongLong("_redCt"); return _config.reducer->numReduces; }
+            long long numInMemKeys() const { if (_jsMode) return _scope->getNumberLongLong("_keyCt"); return _temp->size(); }
 
             bool jsMode() {return _jsMode;}
             void switchMode(bool jsMode);