gp_relation_node
The gp_relation_node table contains information about the file system objects for a relation (table, view, index, and so on).
| column | type | references | description |
|---|---|---|---|
| relfilenode_oid | oid | pg_class.relfilenode | The object id of the relation file node. |
| segment_file_num | integer | For append-optimized tables, the append-optimized segment file number. | |
| persistent_tid | tid | Used by Greenplum Database to internally manage persistent representations of file system objects. | |
| persistent_serial_num | bigint | Log sequence number position in the transaction log for a file block. |