ClickHouse/dbms/src/Interpreters/PartLog.cpp

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#include <Columns/ColumnsNumber.h>
#include <Columns/ColumnArray.h>
#include <Columns/ColumnString.h>
#include <DataTypes/DataTypeArray.h>
#include <DataTypes/DataTypesNumber.h>
#include <DataTypes/DataTypeDateTime.h>
#include <DataTypes/DataTypeDate.h>
#include <DataTypes/DataTypeString.h>
#include <Storages/MergeTree/MergeTreeDataPart.h>
#include <Storages/MergeTree/MergeTreeData.h>
#include <Interpreters/PartLog.h>
namespace DB
{
Block PartLogElement::createBlock()
{
return
{
{ColumnUInt8::create(), std::make_shared<DataTypeUInt8>(), "event_type"},
{ColumnUInt16::create(), std::make_shared<DataTypeDate>(), "event_date"},
{ColumnUInt32::create(), std::make_shared<DataTypeDateTime>(), "event_time"},
{ColumnUInt64::create(), std::make_shared<DataTypeUInt64>(), "size_in_bytes"},
{ColumnUInt64::create(), std::make_shared<DataTypeUInt64>(), "duration_ms"},
{ColumnString::create(), std::make_shared<DataTypeString>(), "database"},
{ColumnString::create(), std::make_shared<DataTypeString>(), "table"},
{ColumnString::create(), std::make_shared<DataTypeString>(), "part_name"},
{ColumnArray::create(ColumnString::create()),
std::make_shared<DataTypeArray>(std::make_shared<DataTypeString>()), "merged_from"},
};
}
void PartLogElement::appendToBlock(Block & block) const
{
MutableColumns columns = block.mutateColumns();
size_t i = 0;
columns[i++]->insert(UInt64(event_type));
columns[i++]->insert(UInt64(DateLUT::instance().toDayNum(event_time)));
columns[i++]->insert(UInt64(event_time));
columns[i++]->insert(UInt64(size_in_bytes));
columns[i++]->insert(UInt64(duration_ms));
columns[i++]->insert(database_name);
columns[i++]->insert(table_name);
columns[i++]->insert(part_name);
Array merged_from_array;
merged_from_array.reserve(merged_from.size());
for (const auto & name : merged_from)
merged_from_array.push_back(name);
columns[i++]->insert(merged_from_array);
block.setColumns(std::move(columns));
}
void PartLog::addNewPart(const MergeTreeDataPart & part, double elapsed)
{
PartLogElement elem;
elem.event_time = time(nullptr);
elem.event_type = PartLogElement::NEW_PART;
elem.size_in_bytes = part.size_in_bytes;
elem.duration_ms = elapsed / 1000000;
elem.database_name = part.storage.getDatabaseName();
elem.table_name = part.storage.getTableName();
elem.part_name = part.name;
add(elem);
}
}