Can you please help rectify the error below:
task_hst=# select * from systables;
ERROR: invalid page header in block 579 of relation base/24067/12574
CONTEXT: SQL statement "SELECT COUNT(*)
FROM pg_indexes
WHERE tablename = myname
AND schemaname = 'public'"
PL/pgSQL function "getidxcnt" line 5 at SQL statement
task_hst=# select * from pg_indexes;
ERROR: invalid page header in block 637 of relation base/24067/12548
Similar errors also occur when using pg_dump on some database tables
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