Revert "Revert "Compute percentage of zero hit queries.""

1 files changed, 2 insertions, 6 deletions

diff --git a/eval/src/vespa/eval/eval/aggr.h b/eval/src/vespa/eval/eval/aggr.h
index 516ead0f0bf..fe70107af79 100644
--- a/eval/src/vespa/eval/eval/aggr.h
+++ b/eval/src/vespa/eval/eval/aggr.h
@@ -10,13 +10,10 @@
 #include <algorithm>
 #include <cmath>
 
-namespace vespalib {
+namespace vespalib { class Stash; }
 
-class Stash;
+namespace vespalib::eval {
 
-namespace eval {
-
-struct BinaryOperation;
 
 /**
  * Enumeration of all different aggregators that are allowed to be
@@ -237,4 +234,3 @@ struct TypifyAggr {
 };
 
 } // namespace vespalib::eval
-} // namespace vespalib