73 lines
2.0 KiB
C++
73 lines
2.0 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 "lib/oblog/ob_log.h"
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#include "sql/engine/expr/ob_expr_char_to_rowid.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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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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ObExprCharToRowID::ObExprCharToRowID(ObIAllocator &alloc)
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: ObStringExprOperator(alloc, T_FUN_SYS_CHAR_TO_ROWID, N_CHAR_TO_ROWID, 1)
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{
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}
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ObExprCharToRowID::~ObExprCharToRowID()
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{
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}
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int ObExprCharToRowID::calc_result_type1(ObExprResType &type,
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ObExprResType &type1,
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ObExprTypeCtx &type_ctx) const
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{
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int ret = OB_SUCCESS;
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UNUSED(type_ctx);
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type.set_urowid();
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type.set_length(type1.get_length());
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type1.set_calc_meta(type.get_obj_meta());
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return ret;
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}
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int ObExprCharToRowID::cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const
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{
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int ret = OB_SUCCESS;
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UNUSED(expr_cg_ctx);
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UNUSED(raw_expr);
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CK(1 == rt_expr.arg_cnt_);
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rt_expr.eval_func_ = eval_char_to_rowid;
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return ret;
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}
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int ObExprCharToRowID::eval_char_to_rowid(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum)
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{
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int ret = OB_SUCCESS;
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ObDatum *arg = NULL;
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if (OB_FAIL(expr.eval_param_value(ctx, arg))) {
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LOG_WARN("evaluate parameters failed", K(ret));
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} else {
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expr_datum = *arg;
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LOG_DEBUG("calc char to rowid done", KPC(arg), K(expr_datum));
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}
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return ret;
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}
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} /* sql */
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} /* oceanbase */
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