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Data Publicacao

$meta_query = array(
	array(
		'key'     => 'data_despublicacao',
		'value'   => '$current_date',
		'compare' => '>',
		'type'    => 'DATE',
	),
	array(
		'key'     => 'data_despublicacao',
		'compare' => 'EXISTS',
	),
);