Note
This view is available starting with V4.0.0.
Purpose
This view displays the metadata of a table group, including the partition information of the table group.
Note
Starting from V4.2.0, the partition attribute fields in this view will be displayed as NONE or NULL.
Columns
Column |
Type |
Nullable |
Description |
|---|---|---|---|
| TABLEGROUP_NAME | varchar(128) | NO | The name of the table group. |
| PARTITIONING_TYPE | varchar(13) | NO | The partition type of the primary partition of the table group. Valid values:
NoteStarting from V4.2.0, this field is set to |
| SUBPARTITIONING_TYPE | varchar(13) | NO | The partition type of the subpartition of the table group. Valid values:
NoteStarting from V4.2.0, this field is set to |
| PARTITION_COUNT | bigint(20) | NO | This field is set to NULL. |
| DEF_SUBPARTITION_COUNT | bigint(0) | NO | This field is set to NULL. |
| PARTITIONING_KEY_COUNT | bigint(20) | NO | This field is set to NULL. |
| SUBPARTITIONING_KEY_COUNT | bigint(20) | NO | This field is set to NULL. |
| SHARDING | varchar(20) | NO | The SHARDING attribute of the table group. Valid values:
NoteThis field is available starting from V4.2.0. |
Sample query
Create a table group named
tblgroup1.obclient [test]> CREATE TABLEGROUP tblgroup1 SHARDING = 'PARTITION';Query the SHARDING attribute of the table group
tblgroup1.obclient [test]> SELECT TABLEGROUP_NAME, SHARDING FROM oceanbase.DBA_OB_TABLEGROUPS WHERE tablegroup_name = 'tblgroup1';The query result is as follows:
+-----------------+-----------+ | TABLEGROUP_NAME | SHARDING | +-----------------+-----------+ | tblgroup1 | PARTITION | +-----------------+-----------+ 1 row in set
