ClickHouse/dbms/src/Interpreters/PartLog.h
2019-09-03 14:32:25 +03:00

74 lines
1.7 KiB
C++

#pragma once
#include <Interpreters/SystemLog.h>
namespace DB
{
struct PartLogElement
{
enum Type
{
NEW_PART = 1,
MERGE_PARTS = 2,
DOWNLOAD_PART = 3,
REMOVE_PART = 4,
MUTATE_PART = 5,
MOVE_PART = 6,
};
Type event_type = NEW_PART;
time_t event_time = 0;
UInt64 duration_ms = 0;
String database_name;
String table_name;
String part_name;
String partition_id;
String path_on_disk;
/// Size of the part
UInt64 rows = 0;
/// Size of files in filesystem
UInt64 bytes_compressed_on_disk = 0;
/// Makes sense for merges and mutations.
Strings source_part_names;
UInt64 bytes_uncompressed = 0;
UInt64 rows_read = 0;
UInt64 bytes_read_uncompressed = 0;
/// Was the operation successful?
UInt16 error = 0;
String exception;
static std::string name() { return "PartLog"; }
static Block createBlock();
void appendToBlock(Block & block) const;
};
struct MergeTreeDataPart;
/// Instead of typedef - to allow forward declaration.
class PartLog : public SystemLog<PartLogElement>
{
using SystemLog<PartLogElement>::SystemLog;
using MutableDataPartPtr = std::shared_ptr<MergeTreeDataPart>;
using MutableDataPartsVector = std::vector<MutableDataPartPtr>;
public:
/// Add a record about creation of new part.
static bool addNewPart(Context & context, const MutableDataPartPtr & part, UInt64 elapsed_ns,
const ExecutionStatus & execution_status = {});
static bool addNewParts(Context & context, const MutableDataPartsVector & parts, UInt64 elapsed_ns,
const ExecutionStatus & execution_status = {});
};
}