/**

* Copyright (c) 2021 OceanBase

* OceanBase CE is licensed under Mulan PubL v2.

* You can use this software according to the terms and conditions of the Mulan PubL v2.

* You may obtain a copy of Mulan PubL v2 at:

* http://license.coscl.org.cn/MulanPubL-2.0

* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,

* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,

* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.

* See the Mulan PubL v2 for more details.

*/

#ifndef OCEANBASE_SQL_ENGINE_SORT_SORT_BASIC_INFO_H_

#define OCEANBASE_SQL_ENGINE_SORT_SORT_BASIC_INFO_H_

#include "lib/ob_define.h"

#include "share/datum/ob_datum.h"

#include "share/datum/ob_datum_funcs.h"

namespace oceanbase

{

namespace sql

{

struct ObSortFieldCollation

{

OB_UNIS_VERSION(1);

public:

ObSortFieldCollation(uint32_t field_idx,

common::ObCollationType cs_type,

bool is_ascending,

common::ObCmpNullPos null_pos)

: field_idx_(field_idx),

cs_type_(cs_type),

is_ascending_(is_ascending),

null_pos_(null_pos)

{}

ObSortFieldCollation()

: field_idx_(UINT32_MAX),

cs_type_(common::CS_TYPE_INVALID),

is_ascending_(true),

null_pos_(common::NULL_LAST)

{}

TO_STRING_KV(K_(field_idx), K_(cs_type), K_(is_ascending), K_(null_pos));

uint32_t field_idx_;

common::ObCollationType cs_type_;

bool is_ascending_;

common::ObCmpNullPos null_pos_;

};

typedef common::ObCmpFunc ObSortCmpFunc;

typedef common::ObFixedArray<ObSortFieldCollation, common::ObIAllocator> ObSortCollations;

typedef common::ObFixedArray<ObSortCmpFunc, common::ObIAllocator> ObSortFuncs;

} // end namespace sql

} // end namespace oceanbase

#endif /* OCEANBASE_SQL_ENGINE_SORT_SORT_BASIC_INFO_H_ */