69 lines
1.9 KiB
C++
69 lines
1.9 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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#ifndef OCEANBASE_SQL_OB_SQL_MODE_MANAGER_H
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#define OCEANBASE_SQL_OB_SQL_MODE_MANAGER_H
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#include "common/sql_mode/ob_sql_mode.h"
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namespace oceanbase
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{
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namespace sql
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{
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// Get compatibility mode index of ObSQLModeManager, used to be compatible with old version
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// which ObSQLModeManager is used.
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extern int compatibility_mode2index(const common::ObCompatibilityMode mode, int64_t &index);
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//
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// ObSQLModeManager try to set default sql mode when compatibility mode switched, but hard to use.
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// When loading system variable sql mode is set before compatibility mode, sql mode lost when
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// compatibility mode switched.
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//
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/*
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class ObSQLModePair
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{
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public:
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ObSQLModePair() : comp_mode_(common::ObCompatibilityMode::OCEANBASE_MODE), sql_mode_(0)
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{}
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~ObSQLModePair()
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{}
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public:
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common::ObCompatibilityMode comp_mode_;
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ObSQLMode sql_mode_;
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};
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class ObSQLModeManager
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{
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public:
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static const int64_t COMPATIBILITY_MODE_COUNT = 3;
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ObSQLModeManager():current_mode_index_(1)
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{
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reset();
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}
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~ObSQLModeManager(){}
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int set_compatibility_mode(common::ObCompatibilityMode comp_mode);
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common::ObCompatibilityMode get_compatibility_mode() const;
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void reset();
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void set_sql_mode(ObSQLMode mode);
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ObSQLMode get_sql_mode() const;
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private:
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int get_compatibility_index(common::ObCompatibilityMode comp_mode, int64_t &index) const;
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public:
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ObSQLModePair sql_standard_[COMPATIBILITY_MODE_COUNT];
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int64_t current_mode_index_;
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};
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*/
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}
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}
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#endif
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