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namespace DB
{
ColumnsDescription TransactionsInfoLogElement::getColumnsDescription()
{
auto type_enum = std::make_shared(
DataTypeEnum8::Values
{
{"Begin", static_cast(BEGIN)},
{"Commit", static_cast(COMMIT)},
{"Rollback", static_cast(ROLLBACK)},
{"AddPart", static_cast(ADD_PART)},
{"LockPart", static_cast(LOCK_PART)},
{"UnlockPart", static_cast(UNLOCK_PART)},
});
return ColumnsDescription
{
{"hostname", std::make_shared(std::make_shared())},
{"type", std::move(type_enum)},
{"event_date", std::make_shared()},
{"event_time", std::make_shared(6)},
{"thread_id", std::make_shared()},
{"query_id", std::make_shared()},
{"tid", getTransactionIDDataType()},
{"tid_hash", std::make_shared()},
{"csn", std::make_shared()},
{"database", std::make_shared()},
{"table", std::make_shared()},
{"uuid", std::make_shared()},
{"part", std::make_shared()},
};
}
void TransactionsInfoLogElement::fillCommonFields(const TransactionInfoContext * context)
{
event_time = std::chrono::duration_cast(std::chrono::system_clock::now().time_since_epoch()).count();
thread_id = getThreadId();
query_id = std::string(CurrentThread::getQueryId());
if (!context)
return;
table = context->table;
part_name = context->part_name;
}
void TransactionsInfoLogElement::appendToBlock(MutableColumns & columns) const
{
assert(type != UNKNOWN);
size_t i = 0;
columns[i++]->insert(getFQDNOrHostName());
columns[i++]->insert(type);
auto event_time_seconds = event_time / 1000000;
columns[i++]->insert(DateLUT::instance().toDayNum(event_time_seconds).toUnderType());
columns[i++]->insert(event_time);
columns[i++]->insert(thread_id);
columns[i++]->insert(query_id);
columns[i++]->insert(Tuple{tid.start_csn, tid.local_tid, tid.host_id});
columns[i++]->insert(tid.getHash());
columns[i++]->insert(csn);
columns[i++]->insert(table.database_name);
columns[i++]->insert(table.table_name);
columns[i++]->insert(table.uuid);
columns[i++]->insert(part_name);
}
void tryWriteEventToSystemLog(LoggerPtr log,
TransactionsInfoLogElement::Type type, const TransactionID & tid,
const TransactionInfoContext & context)
try
{
auto system_log = Context::getGlobalContextInstance()->getTransactionsInfoLog();
if (!system_log)
return;
TransactionsInfoLogElement elem;
elem.type = type;
elem.tid = tid;
elem.fillCommonFields(&context);
system_log->add(std::move(elem));
}
catch (...)
{
tryLogCurrentException(log);
}
}