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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
#include <Analyzer/TableFunctionNode.h>
#include <IO/WriteBuffer.h>
#include <IO/WriteHelpers.h>
#include <IO/Operators.h>
#include <Storages/IStorage.h>
#include <Parsers/ASTFunction.h>
#include <Parsers/ASTSetQuery.h>
#include <Interpreters/Context.h>
namespace DB
{
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
}
TableFunctionNode::TableFunctionNode(String table_function_name_)
: IQueryTreeNode(children_size)
, table_function_name(table_function_name_)
, storage_id("system", "one")
{
children[arguments_child_index] = std::make_shared<ListNode>();
}
void TableFunctionNode::resolve(TableFunctionPtr table_function_value, StoragePtr storage_value, ContextPtr context, std::vector<size_t> unresolved_arguments_indexes_)
{
table_function = std::move(table_function_value);
storage = std::move(storage_value);
storage_id = storage->getStorageID();
storage_snapshot = storage->getStorageSnapshot(storage->getInMemoryMetadataPtr(), context);
unresolved_arguments_indexes = std::move(unresolved_arguments_indexes_);
}
const StorageID & TableFunctionNode::getStorageID() const
{
if (!storage)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Table function node {} is not resolved", table_function_name);
return storage_id;
}
const StorageSnapshotPtr & TableFunctionNode::getStorageSnapshot() const
{
if (!storage)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Table function node {} is not resolved", table_function_name);
return storage_snapshot;
}
void TableFunctionNode::dumpTreeImpl(WriteBuffer & buffer, FormatState & format_state, size_t indent) const
{
buffer << std::string(indent, ' ') << "TABLE_FUNCTION id: " << format_state.getNodeId(this);
if (hasAlias())
buffer << ", alias: " << getAlias();
buffer << ", table_function_name: " << table_function_name;
if (table_expression_modifiers)
{
buffer << ", ";
table_expression_modifiers->dump(buffer);
}
const auto & arguments = getArguments();
if (!arguments.getNodes().empty())
{
buffer << '\n' << std::string(indent + 2, ' ') << "ARGUMENTS\n";
arguments.dumpTreeImpl(buffer, format_state, indent + 4);
}
if (!settings_changes.empty())
{
buffer << '\n' << std::string(indent + 2, ' ') << "SETTINGS";
for (const auto & change : settings_changes)
buffer << fmt::format(" {}={}", change.name, toString(change.value));
}
}
bool TableFunctionNode::isEqualImpl(const IQueryTreeNode & rhs) const
{
const auto & rhs_typed = assert_cast<const TableFunctionNode &>(rhs);
if (table_function_name != rhs_typed.table_function_name)
return false;
if (storage && rhs_typed.storage)
return storage_id == rhs_typed.storage_id;
if (settings_changes != rhs_typed.settings_changes)
return false;
return table_expression_modifiers == rhs_typed.table_expression_modifiers;
}
void TableFunctionNode::updateTreeHashImpl(HashState & state) const
{
state.update(table_function_name.size());
state.update(table_function_name);
if (storage)
{
auto full_name = storage_id.getFullNameNotQuoted();
state.update(full_name.size());
state.update(full_name);
}
if (table_expression_modifiers)
table_expression_modifiers->updateTreeHash(state);
state.update(settings_changes.size());
for (const auto & change : settings_changes)
{
state.update(change.name.size());
state.update(change.name);
const auto & value_dump = change.value.dump();
state.update(value_dump.size());
state.update(value_dump);
}
}
QueryTreeNodePtr TableFunctionNode::cloneImpl() const
{
auto result = std::make_shared<TableFunctionNode>(table_function_name);
result->storage = storage;
result->storage_id = storage_id;
result->storage_snapshot = storage_snapshot;
result->table_expression_modifiers = table_expression_modifiers;
result->settings_changes = settings_changes;
result->unresolved_arguments_indexes = unresolved_arguments_indexes;
return result;
}
ASTPtr TableFunctionNode::toASTImpl(const ConvertToASTOptions & options) const
{
auto table_function_ast = std::make_shared<ASTFunction>();
table_function_ast->name = table_function_name;
const auto & arguments = getArguments();
table_function_ast->children.push_back(arguments.toAST(options));
table_function_ast->arguments = table_function_ast->children.back();
if (!settings_changes.empty())
{
auto settings_ast = std::make_shared<ASTSetQuery>();
settings_ast->changes = settings_changes;
settings_ast->is_standalone = false;
table_function_ast->arguments->children.push_back(std::move(settings_ast));
}
return table_function_ast;
}
}
|
