diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c6588a4c1..8d029ddea2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,8 +26,8 @@ Please mark all changes in change log and use the issue from GitHub
 -   \#2768 After building the index, the number of vectors increases
 -   \#2776 Fix too many data copies during creating IVF index
 -   \#2813 To implemente RNSG IP
--   \#2890 Fix wrong index size
--   \#2957 There is no exisitence check of annoy search parameter
+-   \#2890 Fix the index size caculation in cache
+-   \#2952 Fix the result merging of IVF_PQ IP
 
 ## Feature
 -   \#2319 Redo metadata to support MVCC
diff --git a/core/src/scheduler/task/SearchTask.cpp b/core/src/scheduler/task/SearchTask.cpp
index 031d0224d9..4f41743aaf 100644
--- a/core/src/scheduler/task/SearchTask.cpp
+++ b/core/src/scheduler/task/SearchTask.cpp
@@ -103,9 +103,8 @@ XSearchTask::XSearchTask(const std::shared_ptr<server::Context>& context, Segmen
     : Task(TaskType::SearchTask, std::move(label)), context_(context), file_(file) {
     if (file_) {
         // distance -- value 0 means two vectors equal, ascending reduce, L2/HAMMING/JACCARD/TONIMOTO ...
-        // similarity -- infinity value means two vectors equal, descending reduce, IP
-        if (file_->metric_type_ == static_cast<int>(MetricType::IP) &&
-            file_->engine_type_ != static_cast<int>(EngineType::FAISS_PQ)) {
+        // similarity -- value 1 means two vectors equal, descending reduce, IP
+        if (file_->metric_type_ == static_cast<int>(MetricType::IP)) {
             ascending_reduce = false;
         }