From 50c2ea9245d609ae6713de1e949f177a030a5322 Mon Sep 17 00:00:00 2001
From: seuwebber <webber_code@163.com>
Date: Tue, 12 Apr 2022 20:44:05 +0800
Subject: [PATCH] [to #40604219]fix bug ObScanner::user_var_map_.map_ init
 twice

---
 src/share/ob_scanner.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/share/ob_scanner.cpp b/src/share/ob_scanner.cpp
index 1d636c477f..da5123cefd 100644
--- a/src/share/ob_scanner.cpp
+++ b/src/share/ob_scanner.cpp
@@ -226,7 +226,9 @@ int ObScanner::set_session_var_map(const sql::ObSQLSessionInfo* p_session_info)
     if (current_map.size() > 0) {
       // Init user var map on demand when setting to avoid wasting CPU and memory when there is no user var
       // synchronization
-      OZ(user_var_map_.init(1024 * 1024 * 2, 256, NULL));
+      if (!user_var_map_.get_val_map().created()) {
+        OZ(user_var_map_.init(1024 * 1024 * 2, 256, NULL));
+      }
       for (sql::ObSessionValMap::VarNameValMap::const_iterator iter = current_map.get_val_map().begin();
            OB_SUCC(ret) && iter != current_map.get_val_map().end();
            ++iter) {
-- 
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