81 lines
2.4 KiB
C++
81 lines
2.4 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.
|
|
*/
|
|
|
|
#define USING_LOG_PREFIX SQL_ENG
|
|
|
|
#include "lib/oblog/ob_log.h"
|
|
#include "lib/number/ob_number_v2.h"
|
|
#include "sql/engine/expr/ob_expr_tan.h"
|
|
#include "sql/engine/expr/ob_expr_util.h"
|
|
#include "sql/parser/ob_item_type.h"
|
|
#include "sql/session/ob_sql_session_info.h"
|
|
#include <math.h>
|
|
|
|
namespace oceanbase {
|
|
using namespace common;
|
|
using namespace common::number;
|
|
namespace sql {
|
|
|
|
ObExprTan::ObExprTan(ObIAllocator& alloc) : ObFuncExprOperator(alloc, T_FUN_SYS_TAN, N_TAN, 1, NOT_ROW_DIMENSION)
|
|
{}
|
|
|
|
ObExprTan::~ObExprTan()
|
|
{}
|
|
|
|
int ObExprTan::calc_result_type1(ObExprResType& type, ObExprResType& radian, ObExprTypeCtx& type_ctx) const
|
|
{
|
|
return calc_trig_function_result_type1(type, radian, type_ctx);
|
|
}
|
|
|
|
int ObExprTan::calc_result1(ObObj& result, const ObObj& radian_obj, ObExprCtx& expr_ctx) const
|
|
{
|
|
int ret = OB_SUCCESS;
|
|
if (radian_obj.is_null_oracle()) {
|
|
result.set_null();
|
|
} else if (OB_ISNULL(expr_ctx.calc_buf_)) {
|
|
ret = OB_NOT_INIT;
|
|
} else if (radian_obj.is_number()) {
|
|
ObNumber ret_number;
|
|
ObNumber radian_number;
|
|
if (OB_FAIL(radian_obj.get_number(radian_number))) {
|
|
LOG_WARN("get_number failed", K(radian_obj));
|
|
} else if (OB_FAIL(radian_number.tan(ret_number, *(expr_ctx.calc_buf_)))) {
|
|
LOG_WARN("taylor_series_tan failed", K(radian_number), K(ret));
|
|
} else {
|
|
result.set_number(ret_number);
|
|
}
|
|
} else if (radian_obj.is_double()) {
|
|
double arg = radian_obj.get_double();
|
|
double res = tan(arg);
|
|
if (isinf(res) || isnan(res)) {
|
|
ret = OB_OPERATE_OVERFLOW;
|
|
} else {
|
|
result.set_double(res);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
DEF_CALC_TRIGONOMETRIC_EXPR(tan, (isinf(arg) || isnan(arg)), OB_OPERATE_OVERFLOW);
|
|
|
|
int ObExprTan::cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const
|
|
{
|
|
int ret = OB_SUCCESS;
|
|
UNUSED(expr_cg_ctx);
|
|
UNUSED(raw_expr);
|
|
rt_expr.eval_func_ = calc_tan_expr;
|
|
return ret;
|
|
}
|
|
|
|
} // namespace sql
|
|
} // namespace oceanbase
|