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#include <Columns/ColumnArray.h>
#include <Columns/ColumnsNumber.h>
#include <Core/Settings.h>
#include <DataTypes/DataTypeArray.h>
#include <DataTypes/DataTypeMap.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypesNumber.h>
#include <Interpreters/Context.h>
#include <Interpreters/ProcessList.h>
#include <Interpreters/ProfileEventsExt.h>
#include <Storages/System/StorageSystemUserProcesses.h>
namespace DB
{
NamesAndTypesList StorageSystemUserProcesses::getNamesAndTypes()
{
return {
{"user", std::make_shared<DataTypeString>()},
{"memory_usage", std::make_shared<DataTypeInt64>()},
{"peak_memory_usage", std::make_shared<DataTypeInt64>()},
{"ProfileEvents", std::make_shared<DataTypeMap>(std::make_shared<DataTypeString>(), std::make_shared<DataTypeUInt64>())},
};
}
NamesAndAliases StorageSystemUserProcesses::getNamesAndAliases()
{
return {
{"ProfileEvents.Names", {std::make_shared<DataTypeArray>(std::make_shared<DataTypeString>())}, "mapKeys(ProfileEvents)"},
{"ProfileEvents.Values", {std::make_shared<DataTypeArray>(std::make_shared<DataTypeUInt64>())}, "mapValues(ProfileEvents)"}};
}
void StorageSystemUserProcesses::fillData(MutableColumns & res_columns, ContextPtr context, const SelectQueryInfo &) const
{
const auto user_info = context->getProcessList().getUserInfo(true);
for (const auto & [user, info] : user_info)
{
size_t i = 0;
res_columns[i++]->insert(user);
res_columns[i++]->insert(info.memory_usage);
res_columns[i++]->insert(info.peak_memory_usage);
{
IColumn * column = res_columns[i++].get();
if (info.profile_counters)
ProfileEvents::dumpToMapColumn(*info.profile_counters, column, true);
else
{
column->insertDefault();
}
}
}
}
}
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