github.com/matrixorigin/matrixone@v0.7.0/pkg/vectorize/sum/sum.go (about)

     1  // Copyright 2021 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package sum
    16  
    17  /*
    18  #include "mo.h"
    19  #cgo CFLAGS: -I../../../cgo
    20  #cgo LDFLAGS: -L../../../cgo -lmo -lm
    21  */
    22  import "C"
    23  
    24  import (
    25  	"unsafe"
    26  
    27  	"github.com/matrixorigin/matrixone/pkg/common/moerr"
    28  	"github.com/matrixorigin/matrixone/pkg/container/nulls"
    29  	"github.com/matrixorigin/matrixone/pkg/container/types"
    30  	"golang.org/x/exp/constraints"
    31  )
    32  
    33  var (
    34  	Int8Sum      = signedSum[int8]
    35  	Int16Sum     = signedSum[int16]
    36  	Int32Sum     = signedSum[int32]
    37  	Int64Sum     = signedSum[int64]
    38  	Int8SumSels  = signedSumSels[int8]
    39  	Int16SumSels = signedSumSels[int16]
    40  	Int32SumSels = signedSumSels[int32]
    41  	Int64SumSels = signedSumSels[int64]
    42  
    43  	Uint8Sum      = unsignedSum[uint8]
    44  	Uint16Sum     = unsignedSum[uint16]
    45  	Uint32Sum     = unsignedSum[uint32]
    46  	Uint64Sum     = unsignedSum[uint64]
    47  	Uint8SumSels  = unsignedSumSels[uint8]
    48  	Uint16SumSels = unsignedSumSels[uint16]
    49  	Uint32SumSels = unsignedSumSels[uint32]
    50  	Uint64SumSels = unsignedSumSels[uint64]
    51  
    52  	Float32Sum     = floatSum[float32]
    53  	Float64Sum     = floatSum[float64]
    54  	Float32SumSels = floatSumSels[float32]
    55  	Float64SumSels = floatSumSels[float64]
    56  )
    57  
    58  func signedSum[T constraints.Signed](xs []T) int64 {
    59  	var res int64
    60  
    61  	for _, x := range xs {
    62  		res += int64(x)
    63  	}
    64  	return res
    65  }
    66  
    67  func signedSumSels[T constraints.Signed](xs []T, sels []int64) int64 {
    68  	var res int64
    69  
    70  	for _, sel := range sels {
    71  		res += int64(xs[sel])
    72  	}
    73  	return res
    74  }
    75  
    76  func unsignedSum[T constraints.Unsigned](xs []T) uint64 {
    77  	var res uint64
    78  
    79  	for _, x := range xs {
    80  		res += uint64(x)
    81  	}
    82  	return res
    83  }
    84  
    85  func unsignedSumSels[T constraints.Unsigned](xs []T, sels []int64) uint64 {
    86  	var res uint64
    87  
    88  	for _, sel := range sels {
    89  		res += uint64(xs[sel])
    90  	}
    91  	return res
    92  }
    93  
    94  func floatSum[T constraints.Float](xs []T) T {
    95  	var res T
    96  
    97  	for _, x := range xs {
    98  		res += x
    99  	}
   100  	return res
   101  }
   102  
   103  func floatSumSels[T constraints.Float](xs []T, sels []int64) T {
   104  	var res T
   105  
   106  	for _, sel := range sels {
   107  		res += xs[sel]
   108  	}
   109  	return res
   110  }
   111  
   112  func Decimal64Sum(rs, vs []types.Decimal64, start int64, count int64, vps []uint64, zs []int64, nsp *nulls.Nulls) error {
   113  	rc := C.Decimal64_VecSum((*C.int64_t)(unsafe.Pointer(&rs[0])), (*C.int64_t)(unsafe.Pointer(&vs[0])),
   114  		(C.int64_t)(start), (C.int64_t)(count), (*C.uint64_t)(&vps[0]), (*C.int64_t)(&zs[0]), (*C.uint64_t)(nulls.Ptr(nsp)))
   115  	if rc != 0 {
   116  		return moerr.NewOutOfRangeNoCtx("decimal64", "decimal SUM")
   117  	}
   118  	return nil
   119  }
   120  
   121  func Decimal64Sum128(rs []types.Decimal128, vs []types.Decimal64, start int64, count int64, vps []uint64, zs []int64, nsp *nulls.Nulls) error {
   122  	rc := C.Decimal64_VecSumToDecimal128((*C.int64_t)(unsafe.Pointer(&rs[0])), (*C.int64_t)(unsafe.Pointer(&vs[0])),
   123  		(C.int64_t)(start), (C.int64_t)(count), (*C.uint64_t)(&vps[0]), (*C.int64_t)(&zs[0]), (*C.uint64_t)(nulls.Ptr(nsp)))
   124  	if rc != 0 {
   125  		return moerr.NewOutOfRangeNoCtx("decimal128", "decimal SUM")
   126  	}
   127  	return nil
   128  }
   129  
   130  func Decimal128Sum(rs, vs []types.Decimal128, start int64, count int64, vps []uint64, zs []int64, nsp *nulls.Nulls) error {
   131  	rc := C.Decimal128_VecSum((*C.int64_t)(unsafe.Pointer(&rs[0])), (*C.int64_t)(unsafe.Pointer(&vs[0])),
   132  		(C.int64_t)(start), (C.int64_t)(count), (*C.uint64_t)(&vps[0]), (*C.int64_t)(&zs[0]), (*C.uint64_t)(nulls.Ptr(nsp)))
   133  	if rc != 0 {
   134  		return moerr.NewOutOfRangeNoCtx("decimal128", "decimal SUM")
   135  	}
   136  	return nil
   137  }
   138  
   139  /*
   140  func VecSum(rs, vs []uint64, start int64, count int64, vps []uint64, zs []int64, nulls bitmap) {
   141  	for i := int64(0); i < count; i++ {
   142  		if vps[i] == 0 {
   143  			continue
   144  		}
   145  		if nulls.Contains(i + start) {
   146  			continue
   147  		}
   148  		rs[vps[i]-1] += vs[i+start] * zs[i+start]
   149  	}
   150  }
   151  
   152  func VecSumDecimal64(rs, vs []types.Decimal64, start int64, count int64, vps []uint64, zs []int64, nulls bitmap)
   153  
   154  func VecSumDecimal64ToDecimal128(rs []types.Decimal128, vs []types.Decimal64, start int64, count int64, vps []uint64, zs []int64, nulls bitmap)
   155  
   156  func VecSumDecimal128(rs, vs []types.Decimal128, start int64, count int64, vps []uint64, zs []int64, nulls bitmap)
   157  */