From f9b0da44444b5434c4410db6eb72959fe101d12f Mon Sep 17 00:00:00 2001
From: obdev <obdev@oceanbase.com>
Date: Fri, 24 Mar 2023 07:11:52 +0000
Subject: [PATCH] to issue<48587285>:fix memory leak about pl collection shrink

---
 src/pl/ob_pl_allocator.cpp | 10 ++++++++++
 src/pl/ob_pl_allocator.h   |  1 +
 2 files changed, 11 insertions(+)

diff --git a/src/pl/ob_pl_allocator.cpp b/src/pl/ob_pl_allocator.cpp
index b3807dde6..6a16155cd 100644
--- a/src/pl/ob_pl_allocator.cpp
+++ b/src/pl/ob_pl_allocator.cpp
@@ -74,6 +74,16 @@ int ObPLAllocator::shrink()
   return ret;
 }
 
+int ObPLCollAllocator::free_child_coll(ObPLCollection &dest)
+{
+  int ret = OB_SUCCESS;
+
+  for (int64_t i = 0; OB_SUCC(ret) && i < dest.get_count(); ++i) {
+    OZ (ObUserDefinedType::destruct_obj(dest.get_data()[i], NULL));
+  }
+  return ret;
+}
+
 int ObPLCollAllocator::copy_all_element_with_new_allocator(ObIAllocator *allocator)
 {
   int ret = OB_SUCCESS;
diff --git a/src/pl/ob_pl_allocator.h b/src/pl/ob_pl_allocator.h
index 6b06ab5e0..9221daa84 100644
--- a/src/pl/ob_pl_allocator.h
+++ b/src/pl/ob_pl_allocator.h
@@ -81,6 +81,7 @@ public:
     ObPLAllocator(), coll_(coll) {}
 
   virtual int copy_all_element_with_new_allocator(ObIAllocator *allocator) override;
+  static int free_child_coll(ObPLCollection &dest);
 
 private:
   ObPLCollection* coll_;