patch 4.0

src/sql/engine/expr/ob_expr_pl_sqlcode_sqlerrm.h

@@ -0,0 +1,47 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef SRC_SQL_ENGINE_EXPR_OB_EXPR_PL_SQLCODE_SQL_ERRM_H_
+#define SRC_SQL_ENGINE_EXPR_OB_EXPR_PL_SQLCODE_SQL_ERRM_H_
+
+#include "sql/engine/expr/ob_expr_operator.h"
+
+namespace oceanbase
+{
+namespace sql
+{
+class ObExprPLSQLCodeSQLErrm : public ObFuncExprOperator
+{
+  OB_UNIS_VERSION(1);
+public:
+  explicit ObExprPLSQLCodeSQLErrm(common::ObIAllocator &alloc);
+  virtual ~ObExprPLSQLCodeSQLErrm();
+  virtual int calc_result_typeN(ObExprResType &type,
+                                ObExprResType *types,
+                                int64_t param_num,
+                                common::ObExprTypeCtx &type_ctx) const;
+
+  virtual int assign(const ObExprOperator &other);
+
+  void set_is_sqlcode(bool is_sqlcode) { is_sqlcode_ = is_sqlcode; }
+  int cg_expr(ObExprCGCtx &op_cg_ctx, const ObRawExpr &raw_expr, ObExpr &rt_expr) const;
+  static int eval_pl_sql_code_errm(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum);
+
+private:
+  bool is_sqlcode_; // TRUE代表获取SQLCODE, FALSE代表获取SQLERRM
+  DISALLOW_COPY_AND_ASSIGN(ObExprPLSQLCodeSQLErrm);
+};
+
+}
+}
+
+#endif /* SRC_SQL_ENGINE_EXPR_OB_EXPR_PL_SQLCODE_SQL_ERRM_H_ */