功能
存储每个分区的
tindex_id到主表tindex_id的映射。对于分区表，在解析 Raft log 时可以通过分区的tindex_id找到对应主表的tindex_id，进而通过查询sys.logservice_dd_tables表获得解析 Raft log 所需的表结构。字段说明
字段名 | 类型 | 描述 |
sid | bigint unsigned | 用于标识 logservice的编号。 |
tindex_id | int unsigned | 标识每个分区的 ID。 |
parent_tindex_id | int unsigned | 当前分区对应主表的 tindex id。 |
示例
tdsql> DESC sys.logservice_dd_partitions;+------------------+-----------------+------+-----+---------+-------+| Field | Type | Null | Key | Default | Extra |+------------------+-----------------+------+-----+---------+-------+| sid | bigint unsigned | NO | PRI | NULL | || tindex_id | int unsigned | NO | PRI | NULL | || parent_tindex_id | int unsigned | NO | | NULL | |+------------------+-----------------+------+-----+---------+-------+tdsql> SELECT * FROM sys.logservice_dd_partitions;+-------------------+-----------+------------------+| sid | tindex_id | parent_tindex_id |+-------------------+-----------+------------------+| 29475711576178806 | 10035 | 10034 || 29475711576178806 | 10036 | 10034 || 29475711576178806 | 10037 | 10034 || 29475711576178806 | 10038 | 10034 |+-------------------+-----------+------------------+
