query con calcolo sballato

[recensito]

PIEROMACCCCCC

ho un grosso problema

ho una query che ha funzionato per quasi un anno!
oggi è stato fatto un inserimento e ha dato un estrazione sballata

e nn mi spiego il perchè

SELECT DISTINCT au.id_A,au.autore,au.dir,
                        
                        COUNT(ca.id_F) as ca,
                        
                        GROUP_CONCAT(DISTINCT cl.titolo  ORDER BY cl.id_F DESC ) AS cl_ti,
                        GROUP_CONCAT(DISTINCT cl.id_F    ORDER BY cl.id_F DESC ) AS cl,
                                
                        GROUP_CONCAT(DISTINCT es.titolo  ORDER BY es.id_F DESC ) AS es_ti,
                        GROUP_CONCAT(DISTINCT es.id_F    ORDER BY es.id_F DESC ) AS es,
                        
                        GROUP_CONCAT(DISTINCT fi.titolo  ORDER BY fi.id_F DESC ) AS fi_ti,
                        GROUP_CONCAT(DISTINCT fi.id_F    ORDER BY fi.id_F DESC ) AS fi

               FROM in_autori as au 
               
               LEFT JOIN in_fiabe as fi ON au.id_A = fi.id_A
               LEFT JOIN in_cartoline as ca ON au.id_A = ca.id_A
               LEFT JOIN in_classici as cl ON au.id_A = cl.id_A
               LEFT JOIN in_esperimenti as es ON au.id_A = es.id_A
               
               GROUP BY au.id_A
               ORDER BY au.id_A DESC 

il conteggio -> COUNT(ca.id_F) as ca ->è sballato

tu mi sai dire in cosa sbaglio?