Memcache: Query failed(SELECT decode_url, headline, snippet, thumb_url, spam, twit_text,twit_user FROM ipl WHERE headline_hash = '8ee901d5ee5b6dad7854a66826ed7066') UNION (SELECT decode_url, headline, snippet, thumb_url, spam, twit_text, twit_user FROM archive WHERE headline_hash = '8ee901d5ee5b6dad7854a66826ed7066') limit 0,5