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Re: corrupted rows in pg_attribute deleted - Mailing list pgsql-admin

From Lukasz Brodziak
Subject Re: corrupted rows in pg_attribute deleted
Date
Msg-id CAGWYGjX7O43jznSbZb=9y+ziteaaYDX1ns5oAWCTYgcswDkiAA@mail.gmail.com
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In response to corrupted rows in pg_attribute deleted  ("marvin.deoliveira" <marvin.deoliveira@gmail.com>)
Responses Re: corrupted rows in pg_attribute deleted
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Hi,
First thing I would've done is to insert the two corrupted rows into pg_attribute. The best way to get the data for the inserts is to restore a dump of the DB into empty database and retriever the rows by running select over pg_attribute in restored DB. Of You have EMS manager for postgres you can export the selected rows to sql script as inserts. After-hours running updates on corrupted DB run an update on pg_class.
If you don't have EMS write inserts yourself based on selected rows. 
Since it's only 2 rows it will be quick.
Hope this helped You.
Regards
Luke

2011/9/6 marvin.deoliveira <marvin.deoliveira@gmail.com>
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| Postgres Version 9.0.2  |
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After a Kernel Panic in Debian 5, we found corrupted rows in pg_attribute
about 2 tables.

I deleted the rows and updated the pg_class.relnatts with the result of:

SELECT count(*) FROM pg_attribute WHERE attnum > 0 AND attrelid = 167017 --
Returned 22 rows.
where 167017 is the one of the tables OID.

Now I got the following messages:

 1 - When PgAdmin III list the table structure for the first time:

 ERROR:  invalid attribute number 23 for fase_laudo_apac
 LINE 1: Select count(*) as rows from only fase_laudo_apac

 2- When I tried to drop the fase_laudo_apac table:

 An error has occourred:

 ERROR: cache lookup failed for attribute 3 of relation 167045

 Any help will be really appreciated


-----
Marcos Oliveira

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--
Łukasz Brodziak
"Do you bury me when I'm gone
Do you teach me while I'm here
Just as soon I belong
Then it's time I disappear"

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