const candidatos = $input.all().map((item) => item.json);
const ids = candidatos.map((c) => Number(c.id)).filter((id) => Number.isInteger(id));
const idsList = ids.length ? ids.join(',') : '0';

const queryTemplate = /* __SQL_CONTEXTO__ */;
const query = queryTemplate.replaceAll('{IDS}', idsList);

return [{ json: { query, candidateIds: ids } }];