73 lines
1.8 KiB
C++
73 lines
1.8 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_OPT
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#include "ob_raw_expr_get_hash_value.h"
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/// interface of ObRawExprVisitor
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using namespace oceanbase::sql;
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using namespace oceanbase::common;
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int ObRawExprGetHashValue::get_hash_value(ObRawExpr& expr)
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{
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return expr.postorder_accept(*this);
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}
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int ObRawExprGetHashValue::visit(ObConstRawExpr& expr)
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{
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seed_ = expr.hash(seed_);
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return OB_SUCCESS;
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}
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int ObRawExprGetHashValue::visit(ObVarRawExpr& expr)
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{
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seed_ = expr.hash(seed_);
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return OB_SUCCESS;
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}
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int ObRawExprGetHashValue::visit(ObQueryRefRawExpr& expr)
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{
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seed_ = expr.hash(seed_);
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return OB_SUCCESS;
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}
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int ObRawExprGetHashValue::visit(ObColumnRefRawExpr& expr)
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{
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seed_ = expr.hash(seed_);
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return OB_SUCCESS;
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}
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int ObRawExprGetHashValue::visit(ObOpRawExpr& expr)
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{
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seed_ = expr.hash(seed_);
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return OB_SUCCESS;
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}
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int ObRawExprGetHashValue::visit(ObCaseOpRawExpr& expr)
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{
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seed_ = expr.hash(seed_);
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return OB_SUCCESS;
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}
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int ObRawExprGetHashValue::visit(ObAggFunRawExpr& expr)
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{
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seed_ = expr.hash(seed_);
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return OB_SUCCESS;
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}
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int ObRawExprGetHashValue::visit(ObSysFunRawExpr& expr)
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{
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seed_ = expr.hash(seed_);
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return OB_SUCCESS;
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}
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int ObRawExprGetHashValue::visit(ObSetOpRawExpr& expr)
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{
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seed_ = expr.hash(seed_);
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return OB_SUCCESS;
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}
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