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oceanbase/src/sql/engine/expr/ob_expr_abs.cpp
obdev 0d0b11c0cc [FEAT MERGE] impl vectorization 2.0 
Co-authored-by: oceanoverflow <oceanoverflow@gmail.com>
Co-authored-by: hezuojiao <hezuojiao@gmail.com>
Co-authored-by: Monk-Liu <1152761042@qq.com>
2024-02-08 05:32:54 +00:00

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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.
*/
#define USING_LOG_PREFIX SQL_ENG
#include "sql/engine/expr/ob_expr_abs.h"
#include "share/object/ob_obj_cast.h"
#include "share/config/ob_server_config.h"
#include "share/datum/ob_datum_util.h"
#include "sql/engine/expr/ob_expr_result_type_util.h"
#include "sql/session/ob_sql_session_info.h"
namespace oceanbase
{
using namespace common;
using namespace common::number;
namespace sql
{
#define DEF_EVAL_ABS_FUNC(type) \
template <> \
int eval_datum_abs<type>(const ObExpr &expr, ObEvalCtx &ctx, \
ObDatum &expr_datum)
static int check_expr_and_eval(const ObExpr &expr, ObEvalCtx &ctx,
ObDatum *&param_datum, bool &found_null)
{
int ret = OB_SUCCESS;
found_null = false;
if (OB_UNLIKELY(expr.type_ != T_OP_ABS)
|| OB_UNLIKELY(expr.arg_cnt_ != 1) || OB_ISNULL(expr.args_)
|| OB_ISNULL(expr.args_[0])) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid argument", K(ret));
} else if (OB_FAIL(expr.args_[0]->eval(ctx, param_datum))) {
LOG_WARN("failed to eval", K(ret));
} else if (param_datum->is_null()) {
found_null = true;
} else {
// do nothing
}
return ret;
}
template<ObObjType obj_type>
int eval_datum_abs(const ObExpr &expr,
ObEvalCtx &ctx,
ObDatum &expr_datum)
{
UNUSED(expr);
UNUSED(ctx);
UNUSED(expr_datum);
return OB_NOT_SUPPORTED;
}
DEF_EVAL_ABS_FUNC(ObNullType)
{
int ret = OB_SUCCESS;
UNUSED(ctx);
UNUSED(expr);
expr_datum.set_null();
return ret;
}
DEF_EVAL_ABS_FUNC(ObNumberType)
{
int ret = OB_SUCCESS;
ObDatum *param_datum = NULL;
bool found_null = false;
if (OB_FAIL(check_expr_and_eval(expr, ctx, param_datum, found_null))) {
LOG_WARN("failed to check expr and eval", K(ret));
} else if (found_null) {
expr_datum.set_null();
} else {
number::ObNumber param_nmb(param_datum->get_number());
number::ObNumber res_num = param_nmb;
if (param_nmb.is_negative()) {
res_num = param_nmb.negate();
}
expr_datum.set_number(res_num);
}
return ret;
}
DEF_EVAL_ABS_FUNC(ObUNumberType)
{
int ret = OB_SUCCESS;
ObDatum *param_datum = NULL;
bool found_null = false;
if (OB_FAIL(check_expr_and_eval(expr, ctx, param_datum, found_null))) {
LOG_WARN("failed to check expr and eval", K(ret));
} else if (found_null) {
expr_datum.set_null();
} else {
number::ObNumber param_nmb(param_datum->get_number());
number::ObNumber res_num = param_nmb;
if (param_nmb.is_negative()) {
res_num = param_nmb.negate();
}
expr_datum.set_number(res_num);
}
return ret;
}
DEF_EVAL_ABS_FUNC(ObFloatType)
{
int ret = OB_SUCCESS;
ObDatum *param = NULL;
bool found_null = false;
if (OB_FAIL(check_expr_and_eval(expr, ctx, param, found_null))) {
LOG_WARN("check expr and eval", K(ret));
} else if (found_null) {
expr_datum.set_null();
} else {
expr_datum.set_float(param->get_float() >= 0.0
? param->get_float() : -param->get_float());
}
return ret;
}
DEF_EVAL_ABS_FUNC(ObDoubleType)
{
int ret = OB_SUCCESS;
ObDatum *param = NULL;
bool found_null = false;
if (OB_FAIL(check_expr_and_eval(expr, ctx, param, found_null))) {
LOG_WARN("failed to check expr and eval", K(ret));
} else if (found_null) {
expr_datum.set_null();
} else {
expr_datum.set_double(param->get_double() >= 0
? param->get_double() : -param->get_double());
}
return ret;
}
DEF_EVAL_ABS_FUNC(ObUDoubleType)
{
int ret = OB_SUCCESS;
ObDatum *param = NULL;
bool found_null = false;
if (OB_FAIL(check_expr_and_eval(expr, ctx, param, found_null))) {
LOG_WARN("failed to check expr and eval", K(ret));
} else if (found_null) {
expr_datum.set_null();
} else {
expr_datum.set_double(param->get_udouble());
}
return ret;
}
DEF_EVAL_ABS_FUNC(ObIntType)
{
int ret = OB_SUCCESS;
ObDatum *param = NULL;
bool found_null = false;
if (OB_FAIL(check_expr_and_eval(expr, ctx, param, found_null))) {
LOG_WARN("failed to check expr and eval", K(ret));
} else if (found_null) {
expr_datum.set_null();
} else {
int64_t param_int = param->get_int();
// 只有mysql模式会调到这个函数，如果发现是INT64_MIN，需要报out of range
if (INT64_MIN == param_int) {
ret = OB_OPERATE_OVERFLOW;
LOG_WARN("value out of range", K(ret));
} else {
expr_datum.set_int(param_int >= 0 ? param_int : -param_int);
}
}
return ret;
}
DEF_EVAL_ABS_FUNC(ObUInt64Type)
{
int ret = OB_SUCCESS;
ObDatum *param = NULL;
bool found_null = false;
if (OB_FAIL(check_expr_and_eval(expr, ctx, param, found_null))) {
LOG_WARN("failed to check expr and eval", K(ret));
} else if (found_null) {
expr_datum.set_null();
} else {
expr_datum.set_uint(param->get_uint64());
}
return ret;
}
#define MAKE_DECIMAL_INT_OPPOSITE(TYPE) \
case sizeof(TYPE##_t): { \
res_val.from(-(*(decint->TYPE##_v_))); \
break; \
}
DEF_EVAL_ABS_FUNC(ObDecimalIntType)
{
int ret = OB_SUCCESS;
ObDatum *param_datum = NULL;
bool found_null = false;
if (OB_FAIL(check_expr_and_eval(expr, ctx, param_datum, found_null))) {
LOG_WARN("failed to check expr and eval", K(ret));
} else if (found_null) {
expr_datum.set_null();
} else {
const ObDecimalInt *decint = param_datum->get_decimal_int();
const int32_t int_bytes = param_datum->get_int_bytes();
bool is_neg = wide::is_negative(decint, int_bytes);
if (is_neg) {
ObDecimalIntBuilder res_val;
switch (int_bytes) {
MAKE_DECIMAL_INT_OPPOSITE(int32)
MAKE_DECIMAL_INT_OPPOSITE(int64)
MAKE_DECIMAL_INT_OPPOSITE(int128)
MAKE_DECIMAL_INT_OPPOSITE(int256)
MAKE_DECIMAL_INT_OPPOSITE(int512)
default: {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("int_bytes is unexpected", K(ret), K(int_bytes));
break;
}
}
if (OB_SUCC(ret)) {
expr_datum.set_decimal_int(res_val.get_decimal_int(), int_bytes);
}
} else {
expr_datum.set_decimal_int(decint, int_bytes);
}
}
return ret;
}
ObExpr::EvalFunc abs_funcs[ObMaxType];
static int check_expr_and_eval_vector(const ObExpr &expr, ObEvalCtx &ctx,
const ObBitVector &skip, const EvalBound &bound)
{
int ret = OB_SUCCESS;
if (OB_UNLIKELY(expr.type_ != T_OP_ABS)
|| OB_UNLIKELY(expr.arg_cnt_ != 1) || OB_ISNULL(expr.args_)
|| OB_ISNULL(expr.args_[0])) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid argument", K(ret));
} else if (OB_FAIL(expr.args_[0]->eval_vector(ctx, skip, bound))) {
LOG_WARN("failed to eval vector", K(ret));
}
return ret;
}
// base
template<ObObjType obj_type>
int eval_vector_abs(const ObExpr &expr,
ObEvalCtx &ctx,
const ObBitVector &skip,
const EvalBound &bound)
{
UNUSED(expr);
UNUSED(ctx);
UNUSED(skip);
UNUSED(bound);
return OB_NOT_SUPPORTED;
}
#define DEF_EVAL_ABS_VEC_FUNC(type) \
template <> \
int eval_vector_abs<type>(const ObExpr &expr, ObEvalCtx &ctx, \
const ObBitVector &skip, const EvalBound &bound) \
template<VecValueTypeClass vec_tc, typename ArgVec, typename ResVec>
class EvalVectorRowAbsHelper {
public:
static int inner_eval_abs_row(const ArgVec *arg_vec, ResVec *res_vec, const int64_t &idx)
{
UNUSED(arg_vec);
UNUSED(res_vec);
UNUSED(idx);
return OB_NOT_SUPPORTED;
}
};
#define DEF_INNER_EVAL_ABS_VEC_ROW_FUNC(type) \
template<typename ArgVec, typename ResVec> \
class EvalVectorRowAbsHelper<type, ArgVec, ResVec> { \
public: \
static int inner_eval_abs_row(const ArgVec *arg_vec, \
ResVec *res_vec, \
const int64_t &idx)
template<VecValueTypeClass vec_tc, typename ArgVec, typename ResVec>
class EvalVectorAbsHelper {
public:
static int inner_eval_abs_vector(const ObExpr &expr,
ObEvalCtx &ctx,
const ObBitVector &skip,
const EvalBound &bound)
{
int ret = OB_SUCCESS;
ResVec *res_vec = static_cast<ResVec *>(expr.get_vector(ctx));
ArgVec *arg_vec = static_cast<ArgVec *>(expr.args_[0]->get_vector(ctx));
for (int64_t j = bound.start(); OB_SUCC(ret) && j < bound.end(); ++j) {
if (skip.at(j)) {
continue;
}
if (arg_vec->is_null(j)) {
res_vec->set_null(j);
} else {
ret = EvalVectorRowAbsHelper<vec_tc, ArgVec, ResVec>::
inner_eval_abs_row(arg_vec, res_vec, j);
}
}
return ret;
}
};
#define DEF_INNER_EVAL_ABS_VEC_FUNC(type) \
template<typename ArgVec, typename ResVec> \
class EvalVectorAbsHelper<type, ArgVec, ResVec> { \
public: \
static int inner_eval_abs_vector(const ObExpr &expr, \
ObEvalCtx &ctx, \
const ObBitVector &skip, \
const EvalBound &bound)
#define END_DEF_INNER_EVAL_ABS_FUNC };
template<VecValueTypeClass vec_tc>
static int dispatch_eval_abs_fixed_len_vector(const ObExpr &expr,
ObEvalCtx &ctx,
const ObBitVector &skip,
const EvalBound &bound)
{
int ret = OB_SUCCESS;
VectorFormat arg_format = expr.args_[0]->get_format(ctx);
VectorFormat res_format = expr.get_format(ctx);
if (VEC_FIXED == arg_format && VEC_FIXED == res_format) {
ret = EvalVectorAbsHelper<vec_tc, ObFixedLengthVector<RTCType<vec_tc>, VectorBasicOp<vec_tc>>,
ObFixedLengthVector<RTCType<vec_tc>, VectorBasicOp<vec_tc>>>::
inner_eval_abs_vector(expr, ctx, skip, bound);
} else if (VEC_UNIFORM == arg_format && VEC_FIXED == res_format) {
ret = EvalVectorAbsHelper<vec_tc, ObUniformVector<false, VectorBasicOp<vec_tc>>,
ObFixedLengthVector<RTCType<vec_tc>, VectorBasicOp<vec_tc>>>::
inner_eval_abs_vector(expr, ctx, skip, bound);
} else if (VEC_UNIFORM_CONST == arg_format && VEC_FIXED == res_format) {
ret = EvalVectorAbsHelper<vec_tc, ObUniformVector<true, VectorBasicOp<vec_tc>>,
ObFixedLengthVector<RTCType<vec_tc>, VectorBasicOp<vec_tc>>>::
inner_eval_abs_vector(expr, ctx, skip, bound);
} else {
ret = EvalVectorAbsHelper<vec_tc, ObVectorBase, ObVectorBase>::
inner_eval_abs_vector(expr, ctx, skip, bound);
}
return ret;
}
template<VecValueTypeClass vec_tc>
static int dispatch_eval_abs_variable_len_vector(const ObExpr &expr,
ObEvalCtx &ctx,
const ObBitVector &skip,
const EvalBound &bound)
{
int ret = OB_SUCCESS;
VectorFormat arg_format = expr.args_[0]->get_format(ctx);
VectorFormat res_format = expr.get_format(ctx);
if (VEC_DISCRETE == arg_format && VEC_DISCRETE == res_format) {
ret = EvalVectorAbsHelper<vec_tc, ObDiscreteVector<VectorBasicOp<vec_tc>>,
ObDiscreteVector<VectorBasicOp<vec_tc>>>::
inner_eval_abs_vector(expr, ctx, skip, bound);
} else if (VEC_CONTINUOUS == arg_format && VEC_DISCRETE == res_format) {
ret = EvalVectorAbsHelper<vec_tc, ObContinuousVector<VectorBasicOp<vec_tc>>,
ObDiscreteVector<VectorBasicOp<vec_tc>>>::
inner_eval_abs_vector(expr, ctx, skip, bound);
} else if (VEC_UNIFORM == arg_format && VEC_DISCRETE == res_format) {
ret = EvalVectorAbsHelper<vec_tc, ObUniformVector<false, VectorBasicOp<vec_tc>>,
ObDiscreteVector<VectorBasicOp<vec_tc>>>::
inner_eval_abs_vector(expr, ctx, skip, bound);
} else if (VEC_UNIFORM_CONST == arg_format && VEC_DISCRETE == res_format) {
ret = EvalVectorAbsHelper<vec_tc, ObUniformVector<true, VectorBasicOp<vec_tc>>,
ObDiscreteVector<VectorBasicOp<vec_tc>>>::
inner_eval_abs_vector(expr, ctx, skip, bound);
} else {
ret = EvalVectorAbsHelper<vec_tc, ObVectorBase, ObVectorBase>::
inner_eval_abs_vector(expr, ctx, skip, bound);
}
return ret;
}
// ObNullType
DEF_INNER_EVAL_ABS_VEC_FUNC(VEC_TC_NULL)
{
int ret = OB_SUCCESS;
ResVec *res_vec = static_cast<ResVec *>(expr.get_vector(ctx));
for (int64_t j = bound.start(); OB_SUCC(ret) && j < bound.end(); ++j) {
if (skip.at(j)) {
continue;
}
res_vec->set_null(j);
}
return ret;
}
END_DEF_INNER_EVAL_ABS_FUNC
DEF_EVAL_ABS_VEC_FUNC(ObNullType)
{
int ret = OB_SUCCESS;
if (OB_FAIL(check_expr_and_eval_vector(expr, ctx, skip, bound))) {
LOG_WARN("check_expr_and_eval_vector failed", K(ret));
} else {
VectorFormat res_format = expr.get_format(ctx);
switch (res_format) {
case VEC_DISCRETE:
case VEC_CONTINUOUS:
case VEC_FIXED: {
ret = EvalVectorAbsHelper<VEC_TC_NULL, ObVectorBase, ObBitmapNullVectorBase>::
inner_eval_abs_vector(expr, ctx, skip, bound);
break;
}
case VEC_UNIFORM: {
ret = EvalVectorAbsHelper<VEC_TC_NULL, ObVectorBase, ObUniformFormat<false>>::
inner_eval_abs_vector(expr, ctx, skip, bound);
break;
}
case VEC_UNIFORM_CONST: {
ret = EvalVectorAbsHelper<VEC_TC_NULL, ObVectorBase, ObUniformFormat<true>>::
inner_eval_abs_vector(expr, ctx, skip, bound);
break;
}
default: {
ret = EvalVectorAbsHelper<VEC_TC_NULL, ObVectorBase, ObVectorBase>::
inner_eval_abs_vector(expr, ctx, skip, bound);
}
}
}
return ret;
}
// ObNumberType
DEF_INNER_EVAL_ABS_VEC_ROW_FUNC(VEC_TC_NUMBER)
{
number::ObNumber param_nmb(arg_vec->get_number(idx));
if (param_nmb.is_negative()) {
res_vec->set_number(idx, param_nmb.negate());
} else {
res_vec->set_number(idx, param_nmb);
}
return OB_SUCCESS;
}
END_DEF_INNER_EVAL_ABS_FUNC
DEF_EVAL_ABS_VEC_FUNC(ObNumberType)
{
int ret = OB_SUCCESS;
if (OB_FAIL(check_expr_and_eval_vector(expr, ctx, skip, bound))) {
LOG_WARN("check_expr_and_eval_vector failed", K(ret));
} else if (OB_FAIL(dispatch_eval_abs_variable_len_vector<
VEC_TC_NUMBER>(expr, ctx, skip, bound))) {
LOG_WARN("dispatch_eval_abs_variable_len_vector", K(ret));
}
return ret;
}
// ObUNumberType
// The "ObUNumberType" and "ObNumberType" are processed using the same logic.
DEF_EVAL_ABS_VEC_FUNC(ObUNumberType)
{
int ret = OB_SUCCESS;
if (OB_FAIL(check_expr_and_eval_vector(expr, ctx, skip, bound))) {
LOG_WARN("check_expr_and_eval_vector failed", K(ret));
} else if (OB_FAIL(dispatch_eval_abs_variable_len_vector<
VEC_TC_NUMBER>(expr, ctx, skip, bound))) {
LOG_WARN("dispatch_eval_abs_variable_len_vector", K(ret));
}
return ret;
}
// ObFloatType
DEF_INNER_EVAL_ABS_VEC_ROW_FUNC(VEC_TC_FLOAT)
{
float param_float = arg_vec->get_float(idx);
res_vec->set_float(idx, param_float > 0.0 ? param_float : -param_float);
return OB_SUCCESS;
}
END_DEF_INNER_EVAL_ABS_FUNC
DEF_EVAL_ABS_VEC_FUNC(ObFloatType)
{
int ret = OB_SUCCESS;
if (OB_FAIL(check_expr_and_eval_vector(expr, ctx, skip, bound))) {
LOG_WARN("check_expr_and_eval_vector failed", K(ret));
} else if (OB_FAIL(dispatch_eval_abs_fixed_len_vector<
VEC_TC_FLOAT>(expr, ctx, skip, bound))) {
LOG_WARN("dispatch_eval_abs_variable_len_vector", K(ret));
}
return ret;
}
// ObDoubleType
DEF_INNER_EVAL_ABS_VEC_ROW_FUNC(VEC_TC_DOUBLE)
{
double param_double = arg_vec->get_double(idx);
res_vec->set_double(idx, param_double >= 0 ? param_double : -param_double);
return OB_SUCCESS;
}
END_DEF_INNER_EVAL_ABS_FUNC
DEF_EVAL_ABS_VEC_FUNC(ObDoubleType)
{
int ret = OB_SUCCESS;
if (OB_FAIL(check_expr_and_eval_vector(expr, ctx, skip, bound))) {
LOG_WARN("check_expr_and_eval_vector failed", K(ret));
} else if (OB_FAIL(dispatch_eval_abs_fixed_len_vector<
VEC_TC_DOUBLE>(expr, ctx, skip, bound))) {
LOG_WARN("dispatch_eval_abs_variable_len_vector", K(ret));
}
return ret;
}
// ObUDoubleType
DEF_EVAL_ABS_VEC_FUNC(ObUDoubleType)
{
int ret = OB_SUCCESS;
if (OB_FAIL(check_expr_and_eval_vector(expr, ctx, skip, bound))) {
LOG_WARN("check_expr_and_eval_vector failed", K(ret));
} else if (OB_FAIL(dispatch_eval_abs_fixed_len_vector<
VEC_TC_DOUBLE>(expr, ctx, skip, bound))) {
LOG_WARN("dispatch_eval_abs_variable_len_vector", K(ret));
}
return ret;
}
// ObIntType
DEF_INNER_EVAL_ABS_VEC_ROW_FUNC(VEC_TC_INTEGER)
{
int ret = OB_SUCCESS;
int64_t param_int = arg_vec->get_int(idx);
// This function is only called in the MySQL mode.
// If it is found to be INT64_MIN, it should report an "out of range" error.
if (INT64_MIN == param_int) {
ret = OB_OPERATE_OVERFLOW;
LOG_WARN("int value out of range", K(ret));
} else {
res_vec->set_int(idx, param_int >= 0 ? param_int : -param_int);
}
return ret;
}
END_DEF_INNER_EVAL_ABS_FUNC
DEF_EVAL_ABS_VEC_FUNC(ObIntType)
{
int ret = OB_SUCCESS;
if (OB_FAIL(check_expr_and_eval_vector(expr, ctx, skip, bound))) {
LOG_WARN("check_expr_and_eval_vector failed", K(ret));
} else if (OB_FAIL(dispatch_eval_abs_fixed_len_vector<
VEC_TC_INTEGER>(expr, ctx, skip, bound))) {
LOG_WARN("dispatch_eval_abs_variable_len_vector", K(ret));
}
return ret;
}
// ObUInt64Type
DEF_INNER_EVAL_ABS_VEC_ROW_FUNC(VEC_TC_UINTEGER)
{
res_vec->set_uint(idx, arg_vec->get_uint64(idx));
return OB_SUCCESS;
}
END_DEF_INNER_EVAL_ABS_FUNC
DEF_EVAL_ABS_VEC_FUNC(ObUInt64Type)
{
int ret = OB_SUCCESS;
if (OB_FAIL(check_expr_and_eval_vector(expr, ctx, skip, bound))) {
LOG_WARN("check_expr_and_eval_vector failed", K(ret));
} else if (OB_FAIL(dispatch_eval_abs_fixed_len_vector<
VEC_TC_UINTEGER>(expr, ctx, skip, bound))) {
LOG_WARN("dispatch_eval_abs_variable_len_vector", K(ret));
}
return ret;
}
// ObDecimalIntType
#define DEF_INNER_EVAL_ABS_DECIMAL_VEC_FUNC(INT_BIT) \
DEF_INNER_EVAL_ABS_VEC_ROW_FUNC(VEC_TC_DEC_INT##INT_BIT) \
{ \
const ObDecimalInt *decint = arg_vec->get_decimal_int(idx); \
bool is_neg = wide::is_negative(decint, INT_BIT / CHAR_BIT); \
if (is_neg) { \
ObDecimalIntBuilder res_val; \
res_val.from(-(*(decint->int##INT_BIT##_v_))); \
res_vec->set_decimal_int(idx, res_val.get_decimal_int(), INT_BIT / CHAR_BIT); \
} else { \
res_vec->set_decimal_int(idx, decint, INT_BIT / CHAR_BIT); \
} \
return OB_SUCCESS; \
} \
END_DEF_INNER_EVAL_ABS_FUNC
DEF_INNER_EVAL_ABS_DECIMAL_VEC_FUNC(32)
DEF_INNER_EVAL_ABS_DECIMAL_VEC_FUNC(64)
DEF_INNER_EVAL_ABS_DECIMAL_VEC_FUNC(128)
DEF_INNER_EVAL_ABS_DECIMAL_VEC_FUNC(256)
DEF_INNER_EVAL_ABS_DECIMAL_VEC_FUNC(512)
DEF_EVAL_ABS_VEC_FUNC(ObDecimalIntType)
{
int ret = OB_SUCCESS;
if (OB_FAIL(check_expr_and_eval_vector(expr, ctx, skip, bound))) {
LOG_WARN("check_expr_and_eval_vector failed", K(ret));
} else {
int16_t precision = expr.datum_meta_.precision_;
if (precision <= 0) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("dicimal precision <= 0", K(ret), K(precision));
} else if (precision <= MAX_PRECISION_DECIMAL_INT_32) {
ret = dispatch_eval_abs_fixed_len_vector<VEC_TC_DEC_INT32>(expr, ctx, skip, bound);
} else if (precision <= MAX_PRECISION_DECIMAL_INT_64) {
ret = dispatch_eval_abs_fixed_len_vector<VEC_TC_DEC_INT64>(expr, ctx, skip, bound);
} else if (precision <= MAX_PRECISION_DECIMAL_INT_128) {
ret = dispatch_eval_abs_fixed_len_vector<VEC_TC_DEC_INT128>(expr, ctx, skip, bound);
} else if (precision <= MAX_PRECISION_DECIMAL_INT_256) {
ret = dispatch_eval_abs_fixed_len_vector<VEC_TC_DEC_INT256>(expr, ctx, skip, bound);
} else {
ret = dispatch_eval_abs_fixed_len_vector<VEC_TC_DEC_INT512>(expr, ctx, skip, bound);
}
}
return ret;
}
ObExpr::EvalVectorFunc abs_vec_funcs[ObMaxType];
template<int IDX>
struct AbsFuncIniter
{
static bool init_array()
{
abs_funcs[IDX] = &eval_datum_abs<static_cast<ObObjType>(IDX)>;
abs_vec_funcs[IDX] = &eval_vector_abs<static_cast<ObObjType>(IDX)>;
return true;
}
};
static bool abs_eval_func_init_ret = ObArrayConstIniter<ObMaxType, AbsFuncIniter>::init();
static_assert(ObMaxType == sizeof(abs_funcs) / sizeof(void *), "unexpected size");
static_assert(ObMaxType == sizeof(abs_vec_funcs) / sizeof(void *), "unexpected size");
REG_SER_FUNC_ARRAY(OB_SFA_SQL_EXPR_ABS_EVAL, abs_funcs, ARRAYSIZEOF(abs_funcs));
REG_SER_FUNC_ARRAY(OB_SFA_SQL_EXPR_ABS_EVAL_VEC, abs_vec_funcs, ARRAYSIZEOF(abs_vec_funcs));
ObExprAbs::ObExprAbs(ObIAllocator &alloc)
: ObExprOperator(alloc, T_OP_ABS, N_ABS, 1, VALID_FOR_GENERATED_COL, NOT_ROW_DIMENSION),
func_(NULL) {}
int ObExprAbs::assign(const ObExprOperator &other)
{
int ret = OB_SUCCESS;
const ObExprAbs *tmp_other = dynamic_cast<const ObExprAbs *>(&other);
if (OB_UNLIKELY(NULL == tmp_other)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid argument. wrong type for other", K(ret), K(other));
} else if (OB_LIKELY(this != tmp_other)) {
if (OB_FAIL(ObExprOperator::assign(other))) {
LOG_WARN("copy in Base class ObExprOperator failed", K(ret));
} else {
this->func_ = tmp_other->func_;
}
}
return ret;
}
int ObExprAbs::calc_result_type1(ObExprResType &type, ObExprResType &type1,
ObExprTypeCtx &type_ctx) const
{
UNUSED(type_ctx);
int ret = OB_SUCCESS;
const ObSQLSessionInfo *session = type_ctx.get_session();
if (OB_ISNULL(session)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("session is NULL", K(ret));
} else if (NOT_ROW_DIMENSION == row_dimension_) {
// result type
ObObjType itype;
if (OB_SUCC(ObExprResultTypeUtil::get_abs_result_type(itype, type1.get_type()))) {
if (lib::is_oracle_mode() && ob_is_json(type1.get_type())) {
ret = OB_ERR_INVALID_TYPE_FOR_OP;
} else if (ObMaxType == itype) {
ret = OB_ERR_INVALID_TYPE_FOR_OP;
} else {
type.set_type(itype);
}
}
// collation
// 结果不可能为字符类型，无需专门设置collation
if (lib::is_oracle_mode() && (type1.is_varchar_or_char() || type1.is_number_float())) {
type.set_precision(PRECISION_UNKNOWN_YET);
type.set_scale(ORA_NUMBER_SCALE_UNKNOWN_YET);
} else if (lib::is_mysql_mode() && type.is_double() && type1.get_scale() != SCALE_UNKNOWN_YET) {
type.set_scale(type1.get_scale());
type.set_precision(static_cast<ObPrecision>(ObMySQLUtil::float_length(type1.get_scale())));
} else {
type.set_accuracy(type1.get_accuracy());
}
// null flag
ObExprOperator::calc_result_flag1(type, type1);
if (OB_SUCC(ret)) {
// set calc type for param
ObObjType param_calc_type = calc_param_type(type1.get_type(),
lib::is_oracle_mode());
if (OB_UNLIKELY(ObMaxType == param_calc_type)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid param calc type", K(ret), K(type1.get_type()), K(param_calc_type));
} else {
type1.set_calc_type(param_calc_type);
if (type1.get_type() == ObJsonType) {
type1.set_calc_type(ObDoubleType);
type.set_type(ObDoubleType);
}
}
}
} else {
ret = OB_ERR_INVALID_TYPE_FOR_OP;
}
return ret;
}
//tinyint, mediumint, smallint, int32
int ObExprAbs::abs_int(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
res.set_int(param.get_int() >= 0 ? param.get_int() : -param.get_int());
UNUSED(expr_ctx);
return OB_SUCCESS;
}
//int64
int ObExprAbs::abs_int64(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
int ret = OB_SUCCESS;
if (INT64_MIN == param.get_int()) {
ret = OB_OPERATE_OVERFLOW; //INT64_MIN时，mysql会返回一个out of range的错误
LOG_WARN("value out of range", K(ret), K(INT64_MIN), K(param));
} else {
res.set_int(param.get_int() >= 0LL ? param.get_int() : -param.get_int());
}
UNUSED(expr_ctx);
return ret;
}
//utiniyint, umediumint, usmallint
int ObExprAbs::abs_uint(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
res.set_uint64(static_cast<uint64_t>(param.get_uint32()));
UNUSED(expr_ctx);
return OB_SUCCESS;
}
//uint32 uint64
int ObExprAbs::abs_uint32_uint64(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
res.set_uint64(param.get_uint64());
UNUSED(expr_ctx);
return OB_SUCCESS;
}
//float
int ObExprAbs::abs_float(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
res.set_float(param.get_float() >= 0.0f ? param.get_float() : -param.get_float());
UNUSED(expr_ctx);
return OB_SUCCESS;
}
int ObExprAbs::abs_float_double(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
res.set_double(static_cast<double>(param.get_float() >= 0.0f ?
param.get_float() :
-param.get_float()));
UNUSED(expr_ctx);
return OB_SUCCESS;
}
//double
int ObExprAbs::abs_double(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
res.set_double(param.get_double() >= 0.0 ? param.get_double() : -param.get_double());
UNUSED(expr_ctx);
return OB_SUCCESS;
}
//ufloat
int ObExprAbs::abs_ufloat_udouble(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
res.set_udouble(static_cast<double>(param.get_ufloat()));
UNUSED(expr_ctx);
return OB_SUCCESS;
}
//udouble
int ObExprAbs::abs_udouble(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
res.set_udouble(param.get_udouble());
UNUSED(expr_ctx);
return OB_SUCCESS;
}
//number
int ObExprAbs::abs_number(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
int ret = OB_SUCCESS;
if (OB_UNLIKELY(!param.is_number() && !param.is_number_float())) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid arguemnt", K(param), K(ret));
} else if (OB_ISNULL(expr_ctx.calc_buf_)) {
LOG_WARN("allocator should not be null");
ret = OB_ALLOCATE_MEMORY_FAILED;
} else {
number::ObNumber param_nmb = param.get_number();
number::ObNumber res_nmb;
if (param_nmb.is_negative()) {
ret = param_nmb.negate(res_nmb, *expr_ctx.calc_buf_);
} else {
ret = res_nmb.from(param_nmb, *expr_ctx.calc_buf_);
}
if (OB_SUCC(ret)) {
res.set_number(res_nmb);
}
}
return ret;
}
//unumber
int ObExprAbs::abs_unumber(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
int ret = OB_SUCCESS;
TYPE_CHECK(param, ObUNumberType);
if (OB_ISNULL(expr_ctx.calc_buf_)) {
LOG_WARN("allocator should not be null");
ret = OB_ALLOCATE_MEMORY_FAILED;
} else {
number::ObNumber param_nmb = param.get_unumber();
number::ObNumber res_nmb;
if (OB_FAIL(res_nmb.from(param_nmb, *expr_ctx.calc_buf_))) {
LOG_WARN("deep copy number failed", K(ret), K(param_nmb));
} else {
res.set_unumber(res_nmb);
}
}
return ret;
}
//null
int ObExprAbs::abs_null(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
res.set_null();
UNUSED(param);
UNUSED(expr_ctx);
return OB_SUCCESS;
}
//others. (datetime time varchar, etc)
int ObExprAbs::abs_others_double(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
int ret = OB_SUCCESS;
double value = 0.0;
EXPR_DEFINE_CAST_CTX(expr_ctx, CM_NONE);
EXPR_GET_DOUBLE_V2(param, value);
if (OB_SUCC(ret)) {
res.set_double(value >= 0.0 ? value : -value);
}
return ret;
}
//others for oracle. (datetime time varchar, etc)
int ObExprAbs::abs_others_number(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
int ret = OB_SUCCESS;
number::ObNumber value;
EXPR_DEFINE_CAST_CTX(expr_ctx, CM_NONE);
EXPR_GET_NUMBER_V2(param, value);
if (OB_SUCC(ret)) {
res.set_number(value.is_negative() ? value.negate() : value);
}
return ret;
}
int ObExprAbs::abs_hexstring(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
int ret = OB_SUCCESS;
double value = 0.0;
EXPR_DEFINE_CAST_CTX(expr_ctx, CM_NONE);
EXPR_GET_DOUBLE_V2(param, value);
if (OB_SUCC(ret)) {
//udouble, not double. compatible with mysql.
res.set_udouble(value >= 0.0 ? value : -value);
}
return ret;
}
int ObExprAbs::abs_year(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
int ret = OB_SUCCESS;
uint64_t value = 0.0;
EXPR_DEFINE_CAST_CTX(expr_ctx, CM_NONE);
EXPR_GET_UINT64_V2(param, value);
if (OB_SUCC(ret)) {
res.set_uint64(value);//abs(year) returns uint64. compatible with mysql.
}
return ret;
}
//bit
int ObExprAbs::abs_bit(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
res.set_uint64(param.get_bit());
UNUSED(expr_ctx);
return OB_SUCCESS;
}
//enum_set
int ObExprAbs::abs_enum_set(ObObj &res,
const ObObj &param,
ObExprCtx &expr_ctx)
{
res.set_uint64(param.get_uint64());
UNUSED(expr_ctx);
return OB_SUCCESS;
}
int ObExprAbs::cg_expr(ObExprCGCtx &ctx,
const ObRawExpr &raw_expr,
ObExpr &rt_expr) const
{
int ret = OB_SUCCESS;
UNUSED(ctx);
UNUSED(raw_expr);
if (OB_UNLIKELY(T_OP_ABS != rt_expr.type_)
|| OB_ISNULL(rt_expr.args_)
|| OB_UNLIKELY(rt_expr.arg_cnt_ != 1)
|| OB_ISNULL(rt_expr.args_[0])) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid argument", K(ret));
} else if (OB_UNLIKELY(rt_expr.args_[0]->datum_meta_.type_ >= ObMaxType)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid arg type for abs", K(ret));
} else {
rt_expr.eval_func_ = abs_funcs[rt_expr.args_[0]->datum_meta_.type_];
rt_expr.eval_vector_func_ = abs_vec_funcs[rt_expr.args_[0]->datum_meta_.type_];
}
return ret;
}
ObObjType ObExprAbs::calc_param_type(const ObObjType orig_param_type,
const bool is_oracle_mode)
{
ObObjType calc_type = ObMaxType;
if (is_oracle_mode) {
switch (orig_param_type)
{
case ObNullType: {
calc_type = ObNullType;
break;
}
case ObFloatType: {
calc_type = ObFloatType;
break;
}
case ObDoubleType: {
calc_type = ObDoubleType;
break;
}
case ObNumberType:
case ObTinyIntType:
case ObSmallIntType:
case ObInt32Type:
case ObIntType:
case ObNumberFloatType:
case ObTimestampTZType:
case ObTimestampLTZType:
case ObTimestampNanoType:
case ObCharType:
case ObVarcharType:
case ObIntervalDSType:
case ObIntervalYMType:
case ObNVarchar2Type:
case ObNCharType:
case ObURowIDType:
case ObDecimalIntType: {
calc_type = ObNumberType;
break;
}
default: {
// do nothing
break;
}
}
} else {
switch (orig_param_type)
{
case ObTinyIntType:
case ObSmallIntType:
case ObMediumIntType:
case ObInt32Type:
case ObIntType: {
calc_type = ObIntType;
break;
}
case ObUTinyIntType:
case ObUSmallIntType:
case ObUMediumIntType:
case ObUInt32Type:
case ObUInt64Type: {
calc_type = ObUInt64Type;
break;
}
case ObFloatType:
case ObDoubleType: {
calc_type = ObDoubleType;
break;
}
case ObUFloatType:
case ObUDoubleType: {
calc_type = ObUDoubleType;
break;
}
case ObNumberType: {
calc_type = ObNumberType;
break;
}
case ObUNumberType: {
calc_type = ObUNumberType;
break;
}
case ObNullType: {
calc_type = ObNullType;
break;
}
case ObYearType: {
calc_type = ObUInt64Type;
break;
}
case ObDateTimeType:
case ObTimestampType:
case ObDateType:
case ObTimeType:
case ObVarcharType:
case ObCharType:
case ObUnknownType:
case ObHexStringType:
case ObTextType:
case ObTinyTextType:
case ObMediumTextType:
case ObLongTextType: {
calc_type = ObDoubleType;
break;
}
case ObBitType: {
calc_type = ObUInt64Type;
break;
}
case ObEnumType:
case ObSetType:
case ObJsonType: {
calc_type = ObDoubleType;
break;
}
case ObDecimalIntType: {
calc_type = ObDecimalIntType;
break;
}
default: {
break;
}
}
}
return calc_type;
}
} // namespace sql
} // namespace oceanbase
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