Memcache: Query failed(select headline_hash from ipl where slug='henry-blofeld-is-a-much-loved-character-but-surely-we-can-do-a-little-better-than-this-example-of-privilege-over-performance-') UNION (select headline_hash from archive where slug='henry-blofeld-is-a-much-loved-character-but-surely-we-can-do-a-little-better-than-this-example-of-privilege-over-performance-')