rowsets

Overview

Returns basic information about the Rowset.

Database

information_schema

Table Information

Column Name	Type	Description
BACKEND_ID	bigint	The ID of the Backend, which is a unique identifier for the Backend.
ROWSET_ID	varchar(64)	The ID of the Rowset, which is a unique identifier for the Rowset.
TABLET_ID	bigint	The ID of the Tablet, which is a unique identifier for the Tablet.
ROWSET_NUM_ROWS	bigint	The number of data rows contained in the Rowset.
TXN_ID	bigint	The transaction ID that wrote to the Rowset.
NUM_SEGMENTS	bigint	The number of Segments contained in the Rowset.
START_VERSION	bigint	The starting version number of the Rowset.
END_VERSION	bigint	The ending version number of the Rowset.
INDEX_DISK_SIZE	bigint	The storage space for indexes within the Rowset.
DATA_DISK_SIZE	bigint	The storage space for data within the Rowset.
CREATION_TIME	datetime	The creation time of the Rowset.
NEWEST_WRITE_TIMESTAMP	datetime	The most recent write time of the Rowset.
SCHEMA_VERSION	int	The Schema version number of the table corresponding to the Rowset data.
COMMIT_TSO	varchar(64)	Rowset TSO range as [start_tso-end_tso] (dev only). The default is [-1--1] when no range is recorded.

COMMIT_TSO usage

This column is a string: do not sort it as a single BIGINT or compare it directly with numeric -1. An absent range appears as [-1--1]; a single commit value is also displayed as a start/end range.

SELECT BACKEND_ID, ROWSET_ID, COMMIT_TSO
FROM information_schema.rowsets
WHERE COMMIT_TSO <> '[-1--1]'
LIMIT 20;

The result lists rowsets with recorded ranges, or is empty if no ranges have been recorded. See TSO for status inspection and configuration.