PGXC_CLASS
PGXC_CLASS stores replication or distribution information for each table.
| Column | Type | Description |
|---|---|---|
| pcrelid | oid | OID of a table. |
| pclocatortype | "char" | Locator type. Options:
|
| pchashalgorithm | smallint | Uses the hash algorithm to distribute tuples. |
| pchashbuckets | smallint | Value of the hash bucket. |
| pgroup | name | Name of the node group. |
| redistributed | "char" | Table has been redistributed. |
| redis_order | integer | Order of redistribution. |
| pcattnum | int2vector | Column numbers used as the distribution key. |
| nodeoids | oidvector_extend | List of OIDs of nodes where the table is distributed. |
| options | text | Reserved column within the system, storing extended state information. |
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