87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
/**
|
|
* 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 st_aswkb/_st_asewkb/st_asbinary expr.
|
|
*/
|
|
|
|
#ifndef OCEANBASE_SQL_OB_EXPR_ST_ASWKB_
|
|
#define OCEANBASE_SQL_OB_EXPR_ST_ASWKB_
|
|
|
|
#include "sql/engine/expr/ob_expr_operator.h"
|
|
|
|
namespace oceanbase
|
|
{
|
|
namespace sql
|
|
{
|
|
|
|
class ObExprGeomWkb : public ObFuncExprOperator
|
|
{
|
|
public:
|
|
explicit ObExprGeomWkb(common::ObIAllocator &alloc,
|
|
ObExprOperatorType type,
|
|
const char *name,
|
|
int32_t param_num,
|
|
int32_t dimension);
|
|
virtual ~ObExprGeomWkb();
|
|
virtual int calc_result_typeN(ObExprResType& type,
|
|
ObExprResType* types_stack,
|
|
int64_t param_num,
|
|
common::ObExprTypeCtx& type_ctx) const override;
|
|
int eval_geom_wkb(const ObExpr &expr,
|
|
ObEvalCtx &ctx,
|
|
ObDatum &res);
|
|
virtual int cg_expr(ObExprCGCtx &expr_cg_ctx,
|
|
const ObRawExpr &raw_expr,
|
|
ObExpr &rt_expr) const override = 0;
|
|
virtual const char *get_func_name() const = 0;
|
|
virtual ObItemType get_expr_type() const = 0;
|
|
private:
|
|
bool is_blank_string(const common::ObCollationType coll_type,
|
|
const common::ObString &str) const;
|
|
DISALLOW_COPY_AND_ASSIGN(ObExprGeomWkb);
|
|
};
|
|
|
|
class ObExprSTAsWkb : public ObExprGeomWkb
|
|
{
|
|
public:
|
|
explicit ObExprSTAsWkb(common::ObIAllocator &alloc);
|
|
virtual ~ObExprSTAsWkb();
|
|
static int eval_st_aswkb(const ObExpr &expr,
|
|
ObEvalCtx &ctx,
|
|
ObDatum &res);
|
|
int cg_expr(ObExprCGCtx &expr_cg_ctx,
|
|
const ObRawExpr &raw_expr,
|
|
ObExpr &rt_expr) const override;
|
|
const char *get_func_name() const override { return N_ST_ASWKB; }
|
|
ObItemType get_expr_type() const override { return T_FUN_SYS_ST_ASWKB; };
|
|
private:
|
|
DISALLOW_COPY_AND_ASSIGN(ObExprSTAsWkb);
|
|
};
|
|
|
|
class ObExprSTAsBinary : public ObExprGeomWkb
|
|
{
|
|
public:
|
|
explicit ObExprSTAsBinary(common::ObIAllocator &alloc);
|
|
virtual ~ObExprSTAsBinary();
|
|
static int eval_st_asbinary(const ObExpr &expr,
|
|
ObEvalCtx &ctx,
|
|
ObDatum &res);
|
|
int cg_expr(ObExprCGCtx &expr_cg_ctx,
|
|
const ObRawExpr &raw_expr,
|
|
ObExpr &rt_expr) const override;
|
|
const char *get_func_name() const override { return N_ST_ASBINARY; }
|
|
ObItemType get_expr_type() const override { return T_FUN_SYS_ST_ASBINARY; };
|
|
private:
|
|
DISALLOW_COPY_AND_ASSIGN(ObExprSTAsBinary);
|
|
};
|
|
|
|
} // sql
|
|
} // oceanbase
|
|
#endif // OCEANBASE_SQL_OB_EXPR_ST_ASWKB_
|