From 00f4baf2624a40a4182e52564599ee01646e35e6 Mon Sep 17 00:00:00 2001
From: lijieac <lijie34@huawei.com>
Date: Thu, 5 Jun 2025 20:19:43 +0800
Subject: [PATCH] fix: crash caused by alter-info is null

---
 storage/ctc/ha_ctc.cc | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/storage/ctc/ha_ctc.cc b/storage/ctc/ha_ctc.cc
index 94c4658..772d26c 100644
--- a/storage/ctc/ha_ctc.cc
+++ b/storage/ctc/ha_ctc.cc
@@ -1520,10 +1520,13 @@ bool is_dml_cmd(const String& sql)
 static int ctc_commit(handlerton *hton, THD *thd, bool commit_trx) {
   DBUG_TRACE;
   BEGIN_RECORD_STATS
-  bool is_alter_copy = is_alter_table_copy(thd);
-  if (engine_ddl_passthru(thd) && (is_alter_copy || is_create_table_check(thd) || is_lock_table(thd))) {
-    END_RECORD_STATS(EVENT_TYPE_COMMIT)
-    return 0;
+  bool is_alter_copy = false;
+  if (engine_ddl_passthru(thd)) {
+    is_alter_copy = is_alter_table_copy(thd);
+    if (is_alter_copy || is_create_table_check(thd) || is_lock_table(thd)) {
+      END_RECORD_STATS(EVENT_TYPE_COMMIT)
+      return 0;
+    }
   }
 
   ctc_handler_t tch;
-- 
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