From 21cce7f4186c1eb6528c60a25ee70d2b053b4228 Mon Sep 17 00:00:00 2001
From: Vinoth Veeraraghavan <vinoth.veeraraghavan@hotmail.com>
Date: Sat, 10 Oct 2020 17:14:35 +0800
Subject: [PATCH] Fix core dump in MOT stress test

---
 .../storage/mot/core/src/system/transaction/txn.cpp        | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/gausskernel/storage/mot/core/src/system/transaction/txn.cpp b/src/gausskernel/storage/mot/core/src/system/transaction/txn.cpp
index f5f47c3a6..0dd79c703 100644
--- a/src/gausskernel/storage/mot/core/src/system/transaction/txn.cpp
+++ b/src/gausskernel/storage/mot/core/src/system/transaction/txn.cpp
@@ -1111,6 +1111,13 @@ RC TxnManager::TruncateTable(Table* table)
         }
     }
 
+    // clean all GC elements for the table, this call should actually release
+    // all elements into an appropriate object pool
+    for (uint16_t i = 0; i < table->GetNumIndexes(); i++) {
+        MOT::Index* index = table->GetIndex(i);
+        GcManager::ClearIndexElements(index->GetIndexId(), false);
+    }
+
     TxnDDLAccess::DDLAccess* ddl_access = m_txnDdlAccess->GetByOid(table->GetTableExId());
     if (ddl_access == nullptr) {
         MOTIndexArr* indexesArr = nullptr;