const applyMainFilters = () => {
  const params = new URLSearchParams(searchParams.toString());
  postalCode ? params.set('zip', postalCode) : params.delete('zip');
  radius > 0
    ? params.set('radius', radius.toString())
    : params.delete('radius');
  selectedQualification
    ? params.set('qualification', selectedQualification.value.toString())
    : params.delete('qualification');
  selectedProfession
    ? params.set('profession', selectedProfession.value.toString())
    : params.delete('profession');
  router.push(createPathWithQueryString(params.toString()));
};

// Example query to find all postal codes within a certain radius of a given point
SELECT 
    zip_code, 
    city, 
    ST_DistanceSphere(geom, ST_MakePoint(:lng, :lat)) AS distance
FROM 
    geo_postal_codes
WHERE 
    ST_DWithin(
        geom::geography,
        ST_MakePoint(:lng, :lat)::geography,
        :radius
    );