于2012年9月17日 9:48:58,Tom Lane写到:
> Rural Hunter <ruralhunter(at)gmail(dot)com> writes:
>> # select oid, * from pg_class WHERE reltoastrelid = 16439148;
>> oid | relname | relnamespace | reltype | reloftype |
>> relowner | relam | relfilenode | reltablespace | relpages | reltuples |
>> reltoastrelid | reltoastidxid | relhasindex | relisshared |
>> relpersistence | relkind | relnatts | relchecks | relhasoids |
>> relhaspkey | relhasrules | relhastriggers | relhassubclass |
>> relfrozenxid | relacl | reloptions
>> ----------+--------------+--------------+----------+-----------+----------+-------+-------------+---------------+----------+-----------+---------------+---------------+-------------+-------------+----------------+---------+----------+-----------+------------+------------+-------------+----------------+----------------+--------------+-----------------------------------------+------------
>> 16439145 | sql_features | 16438995 | 16439147 | 0 |
>> 10 | 0 | 16439145 | 0 | 0 | 0 |
>> 16439148 | 0 | f | f | p |
>> r | 7 | 0 | f | f | f
>> | f | f | 630449585 |
>> {postgres=arwdDxt/postgres,=r/postgres} |
>> (1 row)
>
> Well, that's even stranger, because (1) information_schema.sql_features
> ought to have a toast table in either version, and (2) neither pg_dump
> nor pg_upgrade ought to be attempting to dump or transfer that table.
>
> I wonder whether you dropped and recreated the information_schema in
> the lifetime of this database? We have recommended doing that in the
> past, IIRC. Could such a thing have confused pg_dump?
>
> regards, tom lane
>
No, I have never manually re-created the table. This is the first time
I see the name. But I'm not sure other things I installed before
recreated it or not, such as pg_buffercache etc. One more thing, is
this a hidden table? I can see it with '\d
information_schema.sql_features' but it's not in the list of '\d'.