github.com/matrixorigin/matrixone@v0.7.0/pkg/sql/colexec/agg/bit_and.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 agg
    16  
    17  import (
    18  	"github.com/matrixorigin/matrixone/pkg/container/types"
    19  	"math"
    20  )
    21  
    22  type BitAnd[T1 types.Ints | types.UInts | types.Floats] struct {
    23  }
    24  
    25  func BitAndReturnType(typs []types.Type) types.Type {
    26  	switch typs[0].Oid {
    27  	case types.T_float32, types.T_float64:
    28  		return types.New(types.T_uint64, 0, 0, 0)
    29  	case types.T_int8, types.T_int16, types.T_int32, types.T_int64:
    30  		return types.New(types.T_uint64, 0, 0, 0)
    31  	case types.T_uint8, types.T_uint16, types.T_uint32, types.T_uint64:
    32  		return types.New(types.T_uint64, 0, 0, 0)
    33  	}
    34  	return types.Type{}
    35  }
    36  
    37  func NewBitAnd[T1 types.Ints | types.UInts | types.Floats]() *BitAnd[T1] {
    38  	return &BitAnd[T1]{}
    39  }
    40  
    41  func (ba *BitAnd[T1]) Grows(_ int) {
    42  }
    43  
    44  func (ba *BitAnd[T1]) Eval(vs []uint64) []uint64 {
    45  	return vs
    46  }
    47  
    48  func (ba *BitAnd[T1]) Merge(groupIndex1, groupIndex2 int64, x, y uint64, isEmpty1 bool, isEmpty2 bool, agg any) (uint64, bool) {
    49  	if isEmpty1 {
    50  		x = ^uint64(0)
    51  	}
    52  	if isEmpty2 {
    53  		y = ^uint64(0)
    54  	}
    55  	return x & y, isEmpty1 && isEmpty2
    56  }
    57  
    58  func (ba *BitAnd[T1]) Fill(groupIndex int64, v1 T1, v2 uint64, z int64, isEmpty bool, hasNull bool) (uint64, bool) {
    59  	if hasNull {
    60  		return v2, isEmpty
    61  	}
    62  	if isEmpty {
    63  		v2 = ^uint64(0)
    64  	}
    65  
    66  	if float64(v1) > math.MaxUint64 {
    67  		return math.MaxInt64 & v2, false
    68  	}
    69  	if float64(v1) < 0 {
    70  		return uint64(int64(v1)) & v2, false
    71  	}
    72  	return uint64(v1) & v2, false
    73  }
    74  
    75  func (ba *BitAnd[T1]) MarshalBinary() ([]byte, error) {
    76  	return nil, nil
    77  }
    78  
    79  func (ba *BitAnd[T1]) UnmarshalBinary(data []byte) error {
    80  	return nil
    81  }