f8c5c2647f
Co-authored-by: Charles0429 <xiezhenjiang@gmail.com> Co-authored-by: tino247 <tino247@126.com> Co-authored-by: chaser-ch <chaser.ch@antgroup.com>
99 lines
3.4 KiB
C++
99 lines
3.4 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#define USING_LOG_PREFIX SQL_ENG
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#include "sql/engine/expr/ob_expr_promotion_util.h"
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#include "sql/engine/expr/ob_expr_res_type.h"
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#include "lib/oblog/ob_log.h"
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#include "share/object/ob_obj_cast.h"
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namespace oceanbase
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{
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using namespace common;
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namespace sql
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{
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#include "sql/engine/expr/ob_expr_div_promotion.map"
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#include "sql/engine/expr/ob_expr_nvl_promotion.map"
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struct MyIntegrityChecker3
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{
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MyIntegrityChecker3()
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{
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for (int tc1 = ObNullTC; tc1 < ObMaxTC; tc1++) {
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for (int tc2 = ObNullTC; tc2 < tc1; tc2++) {
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if (DIV_TYPE_PROMOTION[tc1][tc2] != DIV_TYPE_PROMOTION[tc2][tc1]) {
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LOG_ERROR_RET(OB_ERR_UNEXPECTED, "DIV_TYPE_PROMOTION is wrong", "ret", OB_ERR_UNEXPECTED,
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K(tc1), K(tc2),
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"tc1 => tc2", DIV_TYPE_PROMOTION[tc1][tc2],
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"tc2 => tc1", DIV_TYPE_PROMOTION[tc2][tc1]);
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}
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}
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}
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}
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} MY_DIV_TYPE_PROMOTION_CHECKER;
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int ObExprPromotionUtil::get_nvl_type(ObExprResType &type, const ObExprResType &type1,
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const ObExprResType &type2)
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{
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int ret = OB_SUCCESS;
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if (lib::is_oracle_mode()) {
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// process boolean parameter in pl/sql
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if (type1.get_type() == ObTinyIntType || type2.get_type() == ObTinyIntType) {
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if (ObNullType == type1.get_type()
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|| ObNullType == type2.get_type()
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|| (ObTinyIntType == type1.get_type() && ObTinyIntType == type2.get_type())) {
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type.set_type(ObTinyIntType);
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} else {
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if (OB_FAIL(get_calc_type(type, type1, type2, NVL_TYPE_PROMOTION_ORACLE))) {
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LOG_WARN("failed to get calc type", K(ret), K(type1), K(type2), K(type));
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}
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}
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} else {
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if (OB_FAIL(get_calc_type(type, type1, type2, NVL_TYPE_PROMOTION_ORACLE))) {
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LOG_WARN("failed to get calc type", K(ret), K(type1), K(type2), K(type));
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}
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}
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} else {
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if (OB_FAIL(get_calc_type(type, type1, type2, NVL_TYPE_PROMOTION))) {
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LOG_WARN("failed to get calc type", K(ret), K(type1), K(type2), K(type));
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}
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}
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return ret;
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}
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int ObExprPromotionUtil::get_calc_type(ObExprResType &type,
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const ObExprResType &type1,
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const ObExprResType &type2,
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const ObObjType map[ObMaxTC][ObMaxTC])
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{
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int ret = OB_SUCCESS;
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ObObjTypeClass l_tc = type1.get_type_class();
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ObObjTypeClass r_tc = type2.get_type_class();
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if (OB_UNLIKELY(l_tc < ObNullTC || l_tc >= ObMaxTC || r_tc < ObNullTC || r_tc >= ObMaxTC
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|| OB_ISNULL(map))) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("left / right tc out of range, or map array is null", K(ret), K(l_tc), K(r_tc));
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} else {
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type.set_type(map[l_tc][r_tc]);
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if (ObMaxType != type.get_type() && ob_is_nstring(type1.get_type())) {
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type.set_type(ObNVarchar2Type);
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}
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}
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return ret;
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}
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} // namespace sql
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} // namespace oceanbase
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