Postgres-XC 1.1 Documentation
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# 47.54. `pgxc_group`

> Note: The following description applies only to Postgres-XC

The catalog `pgxc_group` stores information about cluster node group information, which is a list of cluster node OIDs. Groups can be used as aliases.

Table 47-55. `pgxc_group` Columns

Name | Type | References | Description
--- | --- | --- | ---
`group_name` | `name` |  | Name of cluster node group
`group_members` | `oidvector` | ``pgxc_node`.oid` | List of node OIDs of the node group

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