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patch 4.0

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This commit is contained in:
wangzelin.wzl
2022-10-24 10:34:53 +08:00
parent 4ad6e00ec3
commit 93a1074b0c
10533 changed files with 2588271 additions and 2299373 deletions
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51
src/sql/engine/expr/ob_expr_cot.cpp
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@ -11,55 +11,61 @@
*/
#define USING_LOG_PREFIX SQL_ENG
#include "sql/parser/ob_item_type.h"
#include "objit/common/ob_item_type.h"
#include "lib/oblog/ob_log.h"
#include "lib/number/ob_number_v2.h"
#include "sql/engine/expr/ob_expr_cot.h"
#include "sql/session/ob_sql_session_info.h"
#include <math.h>
namespace oceanbase
{
using namespace common;
using namespace common::number;
namespace sql
{
ObExprCot::ObExprCot(ObIAllocator &alloc)
: ObFuncExprOperator(alloc, T_FUN_SYS_COT, N_COT, 1, NOT_ROW_DIMENSION)
{
}
ObExprCot::~ObExprCot()
{
}
int ObExprCot::calc_result_type1(ObExprResType &type,
ObExprResType &radian,
ObExprTypeCtx &type_ctx) const
{
return calc_trig_function_result_type1(type, radian, type_ctx);
}
int ObExprCot::calc_result1(ObObj &result,
const ObObj &radian_obj,
ObExprCtx &expr_ctx) const
int ObExprCot::calc_cot_expr(const ObExpr &expr, ObEvalCtx &ctx,
ObDatum &res_datum)
{
int ret = OB_SUCCESS;
if (radian_obj.is_null()) {
result.set_null();
} else if (OB_ISNULL(expr_ctx.calc_buf_)) {
ret = OB_NOT_INIT;
LOG_WARN("expr_ctx.calc_buf_ is NULL", K(ret));
} else if (radian_obj.is_double()) {
double arg = radian_obj.get_double();
ObDatum *radian = NULL;
if (OB_FAIL(expr.args_[0]->eval(ctx, radian))) {
LOG_WARN("eval radian arg failed", K(ret), K(expr));
} else if (radian->is_null()) {
/* radian is already be cast to number type, no need to is_null_oracle */
res_datum.set_null();
} else if (ObDoubleType == expr.args_[0]->datum_meta_.type_) {
const double arg = radian->get_double();
double tan_out = tan(arg);
// to check tan(arg) is small enough to be zero
// 检查 tan(arg)是否趋近于0，当太小时，就认为是0
if (0.0 == tan_out) {
ret = OB_INVALID_ARGUMENT;
ret = OB_DOUBLE_OVERFLOW;
LOG_WARN("tan(x) is zero", K(ret));
} else {
double res = 1.0/tan_out;
if (!std::isfinite(res)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("tan(x) is like zero", K(ret));
ret = OB_DOUBLE_OVERFLOW;
LOG_WARN("tan(x) is zero", K(ret));
} else {
result.set_double(res);
res_datum.set_double(res);
}
}
} else {
@ -67,5 +73,16 @@ int ObExprCot::calc_result1(ObObj &result,
}
return ret;
}
int ObExprCot::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_cot_expr;
return ret;
}
} /* sql */
} /* oceanbase */
} /* oceanbase */