Memcache: Query failed(SELECT decode_url, headline, snippet, thumb_url, spam, twit_text,twit_user FROM ipl WHERE headline_hash = 'b2339c91af1f98d984ba23148255b561') UNION (SELECT decode_url, headline, snippet, thumb_url, spam, twit_text, twit_user FROM archive WHERE headline_hash = 'b2339c91af1f98d984ba23148255b561') limit 0,5