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[FEAT MERGE]:Oracle Json Supported

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This commit is contained in:
obdev
2023-01-28 15:52:29 +08:00
committed by ob-robot
parent 274e68514d
commit bbb017266b
197 changed files with 30520 additions and 2252 deletions
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src/sql/engine/expr/ob_expr_is_json.h Normal file
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/**
* 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.
* This file contains implementation for json_valid.
* Authors:
* wuxingying.wxy@oceanbase.com
*/
#ifndef OCEANBASE_SQL_OB_EXPR_IS_JSON_H_
#define OCEANBASE_SQL_OB_EXPR_IS_JSON_H_
#include "sql/engine/expr/ob_expr_operator.h"
namespace oceanbase
{
namespace sql
{
class ObExprIsJson : public ObFuncExprOperator
{
public:
explicit ObExprIsJson(common::ObIAllocator &alloc);
virtual ~ObExprIsJson();
virtual int calc_result_typeN(ObExprResType& type,
ObExprResType* types,
int64_t param_num,
common::ObExprTypeCtx& type_ctx) const override;
static int get_is_json_option(const ObExpr &expr, ObEvalCtx &ctx, int64_t idx, uint8_t& is_json_mode);
static int check_is_json(const ObExpr &expr, ObEvalCtx &ctx,
const ObDatum &data, ObObjType type,
ObCollationType cs_type, ObArenaAllocator *allocator,
uint8_t strict_opt, uint8_t scalar_opt, uint8_t unique_opt,
bool check_for_is_json, ObDatum &res);
static int eval_is_json(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res);
virtual int cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr,
ObExpr &rt_expr) const override;
private:
const static uint8_t OB_IS_JSON_MODE_DEFAULT = 0;
const static uint8_t OB_IS_JSON_MODE_UNDEFAULT = 1;
const static uint8_t OB_IS_JSON_MODE_MAX = 2;
const static uint8_t OB_JSON_MODE_STRICT = 1;
const static uint8_t OB_JSON_MODE_UNIQUE_KEYS = 1;
const static uint32_t RESERVE_MIN_BUFF_SIZE = 32;
// const static uint8_t OB_JSON_MODE_NO_UNIQUE_KEYS = 0;
DISALLOW_COPY_AND_ASSIGN(ObExprIsJson);
};
} // sql
} // oceanbase
#endif // OCEANBASE_SQL_OB_EXPR_IS_JSON_H_