blob: cbf73c5cb079d115d52524293fc9774746798fe4 (
plain) (
blame)
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
121
122
123
124
125
126
127
128
129
130
131
132
|
#include <Processors/Executors/PullingPipelineExecutor.h>
#include <Processors/Executors/PipelineExecutor.h>
#include <Processors/Formats/PullingOutputFormat.h>
#include <QueryPipeline/QueryPipeline.h>
#include <QueryPipeline/ReadProgressCallback.h>
#include <Processors/Transforms/AggregatingTransform.h>
#include <Processors/Sources/NullSource.h>
namespace DB
{
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
}
PullingPipelineExecutor::PullingPipelineExecutor(QueryPipeline & pipeline_) : pipeline(pipeline_)
{
if (!pipeline.pulling())
throw Exception(ErrorCodes::LOGICAL_ERROR, "Pipeline for PullingPipelineExecutor must be pulling");
pulling_format = std::make_shared<PullingOutputFormat>(pipeline.output->getHeader(), has_data_flag);
pipeline.complete(pulling_format);
}
PullingPipelineExecutor::~PullingPipelineExecutor()
{
try
{
cancel();
}
catch (...)
{
tryLogCurrentException("PullingPipelineExecutor");
}
}
const Block & PullingPipelineExecutor::getHeader() const
{
return pulling_format->getPort(IOutputFormat::PortKind::Main).getHeader();
}
bool PullingPipelineExecutor::pull(Chunk & chunk)
{
if (!executor)
{
executor = std::make_shared<PipelineExecutor>(pipeline.processors, pipeline.process_list_element);
executor->setReadProgressCallback(pipeline.getReadProgressCallback());
}
if (!executor->checkTimeLimitSoft())
return false;
if (!executor->executeStep(&has_data_flag))
return false;
chunk = pulling_format->getChunk();
return true;
}
bool PullingPipelineExecutor::pull(Block & block)
{
Chunk chunk;
if (!pull(chunk))
return false;
if (!chunk)
{
/// In case if timeout exceeded.
block.clear();
return true;
}
block = pulling_format->getPort(IOutputFormat::PortKind::Main).getHeader().cloneWithColumns(chunk.detachColumns());
if (auto chunk_info = chunk.getChunkInfo())
{
if (const auto * agg_info = typeid_cast<const AggregatedChunkInfo *>(chunk_info.get()))
{
block.info.bucket_num = agg_info->bucket_num;
block.info.is_overflows = agg_info->is_overflows;
}
}
return true;
}
void PullingPipelineExecutor::cancel()
{
/// Cancel execution if it wasn't finished.
if (executor)
executor->cancel();
}
Chunk PullingPipelineExecutor::getTotals()
{
return pulling_format->getTotals();
}
Chunk PullingPipelineExecutor::getExtremes()
{
return pulling_format->getExtremes();
}
Block PullingPipelineExecutor::getTotalsBlock()
{
auto totals = getTotals();
if (totals.empty())
return {};
const auto & header = pulling_format->getPort(IOutputFormat::PortKind::Totals).getHeader();
return header.cloneWithColumns(totals.detachColumns());
}
Block PullingPipelineExecutor::getExtremesBlock()
{
auto extremes = getExtremes();
if (extremes.empty())
return {};
const auto & header = pulling_format->getPort(IOutputFormat::PortKind::Extremes).getHeader();
return header.cloneWithColumns(extremes.detachColumns());
}
ProfileInfo & PullingPipelineExecutor::getProfileInfo()
{
return pulling_format->getProfileInfo();
}
}
|
