ClickHouse/src/Interpreters/FilesystemCacheLog.h
2023-08-23 15:53:45 +02:00

55 lines
1.4 KiB
C++

#pragma once
#include <Core/NamesAndAliases.h>
#include <Core/NamesAndTypes.h>
#include <Core/Settings.h>
#include <DataTypes/DataTypeArray.h>
#include <DataTypes/DataTypeNumberBase.h>
#include <DataTypes/DataTypeTuple.h>
#include <Interpreters/SystemLog.h>
#include <Interpreters/TransactionVersionMetadata.h>
namespace DB
{
struct FilesystemCacheLogElement
{
enum class CacheType
{
READ_FROM_CACHE,
READ_FROM_FS_AND_DOWNLOADED_TO_CACHE,
READ_FROM_FS_BYPASSING_CACHE,
WRITE_THROUGH_CACHE,
};
time_t event_time{};
String query_id;
String source_file_path;
std::pair<size_t, size_t> file_segment_range{};
std::pair<size_t, size_t> requested_range{};
CacheType cache_type{};
std::string file_segment_key{};
size_t file_segment_offset = 0;
size_t file_segment_size = 0;
bool read_from_cache_attempted;
String read_buffer_id{};
std::shared_ptr<ProfileEvents::Counters::Snapshot> profile_counters = nullptr;
static std::string name() { return "FilesystemCacheLog"; }
static NamesAndTypesList getNamesAndTypes();
static NamesAndAliases getNamesAndAliases() { return {}; }
void appendToBlock(MutableColumns & columns) const;
static const char * getCustomColumnList() { return nullptr; }
};
class FilesystemCacheLog : public SystemLog<FilesystemCacheLogElement>
{
using SystemLog<FilesystemCacheLogElement>::SystemLog;
};
}