66 lines
2.4 KiB
C++
66 lines
2.4 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 "ob_expr_locate.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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#include "objit/common/ob_item_type.h"
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#include "sql/session/ob_sql_session_info.h"
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#include "sql/engine/expr/ob_expr_instr.h"
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using namespace oceanbase::common;
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using namespace oceanbase::sql;
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namespace oceanbase
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{
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namespace sql
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{
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ObExprLocate::ObExprLocate(ObIAllocator &alloc)
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: ObLocationExprOperator(alloc, T_FUN_SYS_LOCATE, N_LOCATE, TWO_OR_THREE, NOT_ROW_DIMENSION) {}
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ObExprLocate::~ObExprLocate()
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{
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// TODO Auto-generated destructor stub
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}
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int ObExprLocate::calc_result_typeN(ObExprResType &type,
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ObExprResType *types_array,
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int64_t param_num,
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ObExprTypeCtx &type_ctx) const
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{
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int ret = OB_SUCCESS;
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const ObSQLSessionInfo *session = NULL;
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if (OB_ISNULL(session = type_ctx.get_session())) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("session is NULL", K(ret));
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} else if (PARAM_NUM_TWO != param_num && PARAM_NUM_THREE != param_num) {
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ret = OB_INVALID_ARGUMENT;
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LOG_WARN("locate() should have two or three arguments", K(ret));
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} else if (OB_ISNULL(types_array)) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("unexpected error. types_array is null", K(ret), K(types_array));
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} else if (OB_FAIL(ObLocationExprOperator::calc_result_type2(type, types_array[0],
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types_array[1], type_ctx))) {
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LOG_WARN("calc result type failed", K(ret), K(types_array[0]), K(types_array[1]));
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} else if (3 == param_num) {
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types_array[2].set_calc_type(ObIntType);
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ObCastMode cm = lib::is_oracle_mode() ? CM_NONE :
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CM_STRING_INTEGER_TRUNC | CM_WARN_ON_FAIL;
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type_ctx.set_cast_mode(type_ctx.get_cast_mode() | cm);
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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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