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
|
#include <Storages/System/StorageSystemSettingsChanges.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypeArray.h>
#include <DataTypes/DataTypeTuple.h>
#include <Interpreters/Context.h>
#include <Core/SettingsChangesHistory.h>
namespace DB
{
NamesAndTypesList StorageSystemSettingsChanges::getNamesAndTypes()
{
return {
{"version", std::make_shared<DataTypeString>()},
{"changes",
std::make_shared<DataTypeArray>(std::make_shared<DataTypeTuple>(
DataTypes{
std::make_shared<DataTypeString>(),
std::make_shared<DataTypeString>(),
std::make_shared<DataTypeString>(),
std::make_shared<DataTypeString>()},
Names{"name", "previous_value", "new_value", "reason"}))},
};
}
void StorageSystemSettingsChanges::fillData(MutableColumns & res_columns, ContextPtr, const SelectQueryInfo &) const
{
for (auto it = settings_changes_history.rbegin(); it != settings_changes_history.rend(); ++it)
{
res_columns[0]->insert(it->first.toString());
Array changes;
for (const auto & change : it->second)
changes.push_back(Tuple{change.name, toString(change.previous_value), toString(change.new_value), change.reason});
res_columns[1]->insert(changes);
}
}
}
|
