forked from apache/doris
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathdata_type_bitmap.cpp
More file actions
120 lines (106 loc) · 4.7 KB
/
Copy pathdata_type_bitmap.cpp
File metadata and controls
120 lines (106 loc) · 4.7 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#include "core/data_type/data_type_bitmap.h"
#include <utility>
#include "agent/be_exec_version_manager.h"
#include "core/assert_cast.h"
#include "core/column/column.h"
#include "core/column/column_complex.h"
#include "core/column/column_const.h"
#include "core/string_buffer.hpp"
#include "core/string_ref.h"
#include "core/value/bitmap_value.h"
namespace doris {
// binary: const flag| row num | real saved num | size array | bitmap array
// <size array>: bitmap1 size | bitmap2 size | ...
// <bitmap array>: bitmap1 | bitmap2 | ...
int64_t DataTypeBitMap::get_uncompressed_serialized_bytes(const IColumn& column,
int be_exec_version) const {
auto size = sizeof(bool) + sizeof(size_t) + sizeof(size_t);
bool is_const_column = is_column_const(column);
auto real_need_copy_num = is_const_column ? 1 : column.size();
const IColumn* bitmap_column = &column;
if (is_const_column) {
const auto& const_column = assert_cast<const ColumnConst&>(column);
bitmap_column = &(const_column.get_data_column());
}
const auto& data_column = assert_cast<const ColumnBitmap&>(*bitmap_column);
auto allocate_len_size = sizeof(size_t) * real_need_copy_num;
size_t allocate_content_size = 0;
for (size_t i = 0; i < real_need_copy_num; ++i) {
auto& bitmap = data_column.get_element(i);
allocate_content_size += bitmap.getSizeInBytes();
}
return size + allocate_len_size + allocate_content_size;
}
char* DataTypeBitMap::serialize(const IColumn& column, char* buf, int be_exec_version) const {
const auto* bitmap_column = &column;
size_t real_need_copy_num = 0;
buf = serialize_const_flag_and_row_num(&bitmap_column, buf, &real_need_copy_num);
const auto& data_column = assert_cast<const ColumnBitmap&>(*bitmap_column);
// serialize the bitmap size array
auto* meta_ptr = reinterpret_cast<size_t*>(buf);
for (size_t i = 0; i < real_need_copy_num; ++i) {
auto& bitmap = data_column.get_element(i);
unaligned_store<size_t>(&meta_ptr[i], bitmap.getSizeInBytes());
}
// serialize each bitmap
char* data_ptr = buf + sizeof(size_t) * real_need_copy_num;
for (size_t i = 0; i < real_need_copy_num; ++i) {
auto& bitmap = data_column.get_element(i);
bitmap.write_to(data_ptr);
data_ptr += unaligned_load<size_t>(&meta_ptr[i]);
}
return data_ptr;
}
const char* DataTypeBitMap::deserialize(const char* buf, MutableColumnPtr* column,
int be_exec_version) const {
auto* origin_column = column->get();
size_t real_have_saved_num = 0;
buf = deserialize_const_flag_and_row_num(buf, column, &real_have_saved_num);
// deserialize the bitmap size array
auto& data_column = assert_cast<ColumnBitmap&>(*origin_column);
auto& data = data_column.get_data();
// deserialize each bitmap
data.resize(real_have_saved_num);
const auto* meta_ptr = reinterpret_cast<const size_t*>(buf);
const char* data_ptr = buf + sizeof(size_t) * real_have_saved_num;
for (size_t i = 0; i < real_have_saved_num; ++i) {
data[i].deserialize(data_ptr);
data_ptr += unaligned_load<size_t>(&meta_ptr[i]);
}
return data_ptr;
}
MutableColumnPtr DataTypeBitMap::create_column() const {
return ColumnBitmap::create();
}
Status DataTypeBitMap::check_column(const IColumn& column) const {
return check_column_non_nested_type<ColumnBitmap>(column);
}
void DataTypeBitMap::serialize_as_stream(const BitmapValue& cvalue, BufferWritable& buf) {
std::string memory_buffer;
size_t bytesize = cvalue.getSizeInBytes();
memory_buffer.resize(bytesize);
cvalue.write_to(memory_buffer.data());
buf.write_binary(memory_buffer);
}
void DataTypeBitMap::deserialize_as_stream(BitmapValue& value, BufferReadable& buf) {
StringRef ref;
buf.read_binary(ref);
value.deserialize(ref.data);
}
} // namespace doris