From 28536648f7b13c5b2535f90c452e83584908aac0 Mon Sep 17 00:00:00 2001
From: obdev <obdev@oceanbase.com>
Date: Tue, 14 Feb 2023 08:42:24 +0000
Subject: [PATCH] bugfix forbid json compare in pl

---
 src/sql/engine/expr/ob_expr_operator.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/sql/engine/expr/ob_expr_operator.cpp b/src/sql/engine/expr/ob_expr_operator.cpp
index 5229ae316..b15d0df7c 100644
--- a/src/sql/engine/expr/ob_expr_operator.cpp
+++ b/src/sql/engine/expr/ob_expr_operator.cpp
@@ -1951,6 +1951,11 @@ int ObExprOperator::calc_cmp_type2(ObExprResType &type,
                   || type_ == T_OP_IS_NOT)) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("Incorrect cmp type with geometry arguments", K(type1), K(type2), K(type_), K(ret));
+  } else if (is_oracle_mode()
+             && (type1.is_json() || type2.is_json())
+             && (type_ >= T_OP_EQ && type_ <= T_OP_NE)) {
+    ret = OB_ERR_INVALID_CMP_OP;
+    LOG_WARN("incorrect cmp type with json arguments", K(type1), K(type2), K(type_), K(ret));
   } else if (OB_FAIL(ObExprResultTypeUtil::get_relational_cmp_type(cmp_type,
                                                             type1.get_type(),
                                                             type2.get_type()))) {