ClickHouse/src/Storages/System/StorageSystemEvents.cpp
2020-09-02 15:28:29 +03:00

35 lines
1.0 KiB
C++

#include <Common/ProfileEvents.h>
#include <Interpreters/Context.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypesNumber.h>
#include <Storages/System/StorageSystemEvents.h>
namespace DB
{
NamesAndTypesList StorageSystemEvents::getNamesAndTypes()
{
return {
{"event", std::make_shared<DataTypeString>()},
{"value", std::make_shared<DataTypeUInt64>()},
{"description", std::make_shared<DataTypeString>()},
};
}
void StorageSystemEvents::fillData(MutableColumns & res_columns, const Context & context, const SelectQueryInfo &) const
{
for (size_t i = 0, end = ProfileEvents::end(); i < end; ++i)
{
UInt64 value = ProfileEvents::global_counters[i];
if (0 != value || context.getSettingsRef().system_events_show_zero_values)
{
res_columns[0]->insert(ProfileEvents::getName(ProfileEvents::Event(i)));
res_columns[1]->insert(value);
res_columns[2]->insert(ProfileEvents::getDocumentation(ProfileEvents::Event(i)));
}
}
}
}