MySQL: Could not conduct query "SELECT 
					post,
					post_parent,
					post_linkback
				FROM post
				WHERE 
					post_linkback = "http://robertcargill.com/2012/01/24/how-much-more-evidence-do-you-need-mark-driscolls-mars-hill-church-is-a-cult/";" Unknown column 'post_parent' in 'field list'