1 files changed, 7 insertions, 1 deletions
diff --git a/proto/icing/proto/optimize.proto b/proto/icing/proto/optimize.proto
index 0accb9a..675f980 100644
--- a/proto/icing/proto/optimize.proto
+++ b/proto/icing/proto/optimize.proto
@@ -63,7 +63,7 @@ message GetOptimizeInfoResultProto {
   optional int64 time_since_last_optimize_ms = 4;
 }
 
-// Next tag: 11
+// Next tag: 13
 message OptimizeStatsProto {
   // Overall time used for the function call.
   optional int32 latency_ms = 1;
@@ -102,4 +102,10 @@ message OptimizeStatsProto {
     FULL_INDEX_REBUILD = 1;
   }
   optional IndexRestorationMode index_restoration_mode = 10;
+
+  // Number of namespaces before the optimization.
+  optional int32 num_original_namespaces = 11;
+
+  // Number of namespaces deleted.
+  optional int32 num_deleted_namespaces = 12;
 }