Dmitry Lazurkin <dilaz03@xxxxxxxxx> writes:
> select relname, relfilenode from pg_class where relfilenode = 11829;
> relname | relfilenode
> ---------+-------------
> (0 rows)
> Hmmm. Where is table with filenode 11829?
pg_class.relfilenode doesn't contain useful data for pg_proc and some other
critical system catalogs:
regression=# select relname, relfilenode from pg_class where relname like 'pg_proc%';
relname | relfilenode
--------------------------------+-------------
pg_proc_oid_index | 0
pg_proc | 0
pg_proc_proname_args_nsp_index | 0
(3 rows)
You need to use pg_relation_filenode():
regression=# select relname, pg_relation_filenode(oid) from pg_class where relname like 'pg_proc%';
relname | pg_relation_filenode
--------------------------------+----------------------
pg_proc_oid_index | 12662
pg_proc | 12657
pg_proc_proname_args_nsp_index | 12663
(3 rows)
regards, tom lane
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