This morning we got the following error from a daily script that
produces a simple largest-table report:
ERROR: could not open relation with OID 597597503
I reran the script and it completed without error.
Our server is running 9.1.15 from PgDg Ubuntu repos and the query run by
the script is:
SELECT
relname AS TABLE,
lpad ( pg_size_pretty ( pg_relation_size ( oid ) ), 9 ) AS SIZE,
( 100 * pg_relation_size ( oid ) /
( SELECT
sum ( pg_relation_size ( oid ) )
FROM
pg_class
WHERE
relkind = 'r' ) ) ::numeric ( 4, 1 ) AS percent
FROM
pg_class
WHERE
relkind = 'r'
ORDER BY
relpages DESC
LIMIT 60;
My research hasn't led to a definitive conclusion on how to trace this
issue and how much I should be concerned about this error.
If it is of importance, it appears that a temporary table and temporary
index were being created within the same second that the query was run.
Any advice?
Cheers,
Steve
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