$cols = 'm.*, i.subject, i.updated, i.closed';
$sql = "SELECT $cols FROM messages m JOIN issues i ON i.id = issue";
$sql .= " WHERE message IS NOT NULL";
$cols = 'm.*, i.subject, i.updated, i.closed';
$sql = "SELECT $cols FROM messages m JOIN issues i ON i.id = issue";
$sql .= " WHERE message IS NOT NULL";