From f545b8542622b81cac489adb5ca5da04531b80d2 Mon Sep 17 00:00:00 2001
From: GongYusen <986957406@qq.com>
Date: Thu, 9 Nov 2023 13:37:19 +0000
Subject: [PATCH] [CP] fix .net driver bug: parameters count exceeds 65535,
 only 65535 parameters are returned.

---
 src/sql/ob_sql.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/sql/ob_sql.cpp b/src/sql/ob_sql.cpp
index 27c7ef1240..f5a2ae9c3c 100644
--- a/src/sql/ob_sql.cpp
+++ b/src/sql/ob_sql.cpp
@@ -1042,6 +1042,10 @@ int ObSql::do_real_prepare(const ObString &sql,
              && ObSQLUtils::is_mysql_ps_not_support_stmt(parse_result)) {
     ret = OB_ER_UNSUPPORTED_PS;
     LOG_WARN("This command is not supported in the prepared statement protocol yet", K(ret));
+  }  else if (parse_result.question_mark_ctx_.count_ > common::OB_MAX_PS_PARAM_COUNT) {
+    ret = OB_ERR_PS_TOO_MANY_PARAM;
+    LOG_WARN("There are too many parameters in the prepared statement", K(ret));
+    LOG_USER_ERROR(OB_ERR_PS_TOO_MANY_PARAM);
   } else {
     ps_status_guard.is_varparams_sql_prepare(is_from_pl, parse_result.question_mark_ctx_.count_ > 0 ? true : false);
   }