5 * This is all what we need to know to find relation file.
6 * tblNode is identificator of tablespace and because of
7 * currently our tablespaces are equal to databases this is
8 * database OID. relNode is currently relation OID on creation
9 * but may be changed later if required. relNode is stored in
10 * pg_class.relfilenode.
12 typedef struct RelFileNode
14 Oid tblNode; /* tablespace */
15 Oid relNode; /* relation */
18 #define RelFileNodeEquals(node1, node2) \
19 ((node1).relNode == (node2).relNode && \
20 (node1).tblNode == (node2).tblNode)
22 #endif /* RELFILENODE_H */