124 lines
4.6 KiB
C++
124 lines
4.6 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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* This file contains implementation for st_x, st_y, st_latitude, st_longtitude.
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*/
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#ifndef OCEANBASE_SQL_OB_EXPR_ST_X
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#define OCEANBASE_SQL_OB_EXPR_ST_X
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#include "sql/engine/expr/ob_expr_operator.h"
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#include "lib/geo/ob_geo_ibin.h"
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#include "lib/geo/ob_srs_info.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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// common superclass of st_x, s_y, st_longitude and st_latitude
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class ObExprSTCoordinate: public ObExprOperator
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{
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public:
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ObExprSTCoordinate(common::ObIAllocator &alloc,
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ObExprOperatorType type,
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const char *name)
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:ObExprOperator(alloc, type, name, ONE_OR_TWO, VALID_FOR_GENERATED_COL, NOT_ROW_DIMENSION) { }
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virtual ~ObExprSTCoordinate() {}
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virtual int calc_result_typeN(ObExprResType &type,
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ObExprResType *texts,
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int64_t param_num,
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common::ObExprTypeCtx &type_ctx) const;
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int calc_common(common::ObObj &result,
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const common::ObObj *params,
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int64_t param_num,
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common::ObExprCtx &expr_ctx,
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bool is_first_d,
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bool only_geog) const;
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static int eval_common(const ObExpr &expr,
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ObEvalCtx &ctx,
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ObDatum &expr_datum,
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bool is_first_d,
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bool only_geog,
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const char *func_name);
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static int check_longitude(double new_val_radian,
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const common::ObSrsItem *srs,
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double new_val,
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const char *func_name);
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static int check_latitude(double new_val_radian,
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const common::ObSrsItem *srs,
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double new_val,
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const char *func_name);
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};
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class ObExprSTX : public ObExprSTCoordinate
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{
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public:
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explicit ObExprSTX(common::ObIAllocator &alloc)
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: ObExprSTCoordinate(alloc, T_FUN_SYS_ST_X, N_ST_X) {}
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virtual ~ObExprSTX() {}
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static int eval_st_x(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res);
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virtual int cg_expr(ObExprCGCtx &expr_cg_ctx,
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const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const override;
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virtual bool need_rt_ctx() const override { return true; }
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprSTX);
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};
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class ObExprSTY : public ObExprSTCoordinate
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{
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public:
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explicit ObExprSTY(common::ObIAllocator &alloc)
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: ObExprSTCoordinate(alloc, T_FUN_SYS_ST_Y, N_ST_Y) {}
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virtual ~ObExprSTY() {}
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static int eval_st_y(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res);
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virtual int cg_expr(ObExprCGCtx &expr_cg_ctx,
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const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const override;
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virtual bool need_rt_ctx() const override { return true; }
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprSTY);
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};
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class ObExprSTLatitude : public ObExprSTCoordinate
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{
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public:
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explicit ObExprSTLatitude(common::ObIAllocator &alloc)
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: ObExprSTCoordinate(alloc, T_FUN_SYS_ST_LATITUDE, N_ST_LATITUDE) {}
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virtual ~ObExprSTLatitude() {}
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static int eval_st_latitude(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res);
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virtual int cg_expr(ObExprCGCtx &expr_cg_ctx,
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const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const override;
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virtual bool need_rt_ctx() const override { return true; }
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprSTLatitude);
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};
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class ObExprSTLongitude : public ObExprSTCoordinate
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{
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public:
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explicit ObExprSTLongitude(common::ObIAllocator &alloc)
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: ObExprSTCoordinate(alloc, T_FUN_SYS_ST_LONGITUDE, N_ST_LONGITUDE) {}
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virtual ~ObExprSTLongitude() {}
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static int eval_st_longitude(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res);
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virtual int cg_expr(ObExprCGCtx &expr_cg_ctx,
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const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const override;
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virtual bool need_rt_ctx() const override { return true; }
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private:
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DISALLOW_COPY_AND_ASSIGN(ObExprSTLongitude);
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};
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} // sql
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} // oceanbase
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#endif // OCEANBASE_SQL_OB_EXPR_ST_X
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