Re: BUG #15309: ERROR: catalog is missing 1 attribute(s) for relid760676 when max_parallel_maintenance_workers > 0

On Fri, Aug 3, 2018 at 6:53 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Perhaps you can strip and/or anonymize your backup dump file down
> to a postable example that reproduces this problem?

It would also be interesting to see the result of this query, which
relies on the v11 amcheck extension (so "CREATE EXTENSION amcheck"
first):

SELECT bt_index_parent_check(index => c.oid, heapallindexed => true),
               c.relname,
               c.relpages
FROM pg_index i
JOIN pg_opclass op ON i.indclass[0] = op.oid
JOIN pg_am am ON op.opcmethod = am.oid
JOIN pg_class c ON i.indexrelid = c.oid
JOIN pg_namespace n ON c.relnamespace = n.oid
WHERE am.amname = 'btree' AND n.nspname = 'pg_catalog'
-- Don't check temp tables, which may be from another session:
AND c.relpersistence != 't'
-- Function may throw an error when this is omitted:
AND c.relkind = 'i' AND i.indisready AND i.indisvalid
ORDER BY c.relpages DESC;

If that doesn't raise an error, you could try the same query, but
remove "AND n.nspname = 'pg_catalog'". That will take considerably
longer, but probably won't be intolerable.

Thanks
-- 
Peter Geoghegan