#ifndef VTQ_INCLUDED #define VTQ_INCLUDED /* Copyright (c) 2016, MariaDB Corporation. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ /** VTQ stands for 'versioning transaction query': InnoDB system table that holds transaction IDs, their corresponding times and other transaction-related data which is used for transaction order resolution. When versioned table marks its records lifetime with transaction IDs, VTQ is used to get their actual timestamps. */ enum vtq_field_t { VTQ_ALL = 0, VTQ_TRX_ID, VTQ_COMMIT_ID, VTQ_BEGIN_TS, VTQ_COMMIT_TS, VTQ_ISO_LEVEL }; struct vtq_record_t { ulonglong trx_id; ulonglong commit_id; timeval begin_ts; timeval commit_ts; uchar iso_level; }; #endif /* VTQ_INCLUDED */