A Database Error Occurred

Error Number: 1055

Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 't.cpvs' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

SELECT substr(cpvs,1,3) as cpv, COUNT(id) as ilosc FROM ( SELECT id, cpvs FROM ogloszenia_2021_01 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%' UNION ALL SELECT id, cpvs FROM ogloszenia_2021_02 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%' UNION ALL SELECT id, cpvs FROM ogloszenia_2021_03 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%' UNION ALL SELECT id, cpvs FROM ogloszenia_2021_04 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%' UNION ALL SELECT id, cpvs FROM ogloszenia_2021_05 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%' UNION ALL SELECT id, cpvs FROM ogloszenia_2021_06 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%' UNION ALL SELECT id, cpvs FROM ogloszenia_2021_07 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%' UNION ALL SELECT id, cpvs FROM ogloszenia_2021_08 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%' UNION ALL SELECT id, cpvs FROM ogloszenia_2021_09 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%' UNION ALL SELECT id, cpvs FROM ogloszenia_2021_10 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%' UNION ALL SELECT id, cpvs FROM ogloszenia_2021_11 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%' UNION ALL SELECT id, cpvs FROM ogloszenia_2021_12 WHERE cpvs NOT LIKE 'c98%' AND cpvs LIKE '%c98%') t GROUP BY substr(cpv,1,3)

Filename: models/Raporty_model.php

Line Number: 179