Confusing sort interface #1442

SELECT 'table' AS component, true AS sort,
    '/atti/edit.sql?id_soc={id}' AS edit_url,
    '/atti/delete.sql?id_soc={id}' AS delete_url;

SELECT
    t.id_atto::text AS _sqlpage_id,
    COALESCE(t.notaio::text, '—') AS "Notaio",
    COALESCE(t.filza::text, '—') AS "Filza",
    COALESCE(t.documento_n::text, '—') AS "Documento n.",
    to_char(t.data_stipula, 'DD/MM/YYYY') AS "Data Stipula",
    COALESCE(t.tipo_atto::text, '—') AS "Tipo Atto",
    COALESCE(t.regesto::text, '—') AS "Regesto"
FROM atti AS t
ORDER BY t.id_atto
LIMIT 100 OFFSET COALESCE(CAST(NULLIF($offset, '') AS INTEGER), 0);

SELECT 'pagination' AS component;
SELECT
    (g.i / 100 + 1) AS contents,
    sqlpage.link(sqlpage.path(), jsonb_strip_nulls(jsonb_build_object('offset', g.i, 'notaio', NULLIF($notaio, ''), 'filza', NULLIF($filza, ''), 'documento_n', NULLIF($documento_n, ''), 'sort', COALESCE(NULLIF($sort, ''), 'id_atto'), 'dir', NULLIF($dir, '')))) AS link,
    (g.i = COALESCE(CAST(NULLIF($offset, '') AS INTEGER), 0)) AS active
FROM generate_series(0, GREATEST((SELECT count(*) FROM atti AS t WHERE (NULLIF($notaio, '') IS NULL OR t.notaio::text ILIKE '%' || $notaio || '%') AND (NULLIF($filza, '') IS NULL OR t.filza::text ILIKE '%' || $filza || '%') AND (NULLIF($documento_n, '') IS NULL OR t.documento_n::text ILIKE '%' || $documento_n || '%')) - 1, 0), 100) AS g(i);