select from two tables each with different join - mysql

Question

Trying to run this query will not return any error but I guess there is still something wrong in it. After four minutes running it keeps elaborating:
SELECT DISTINCT azioni_row.id_az, sofferenze.Descrizione, COUNT(crediti.stato = 'aperta') as aperti, COUNT(crediti.stato = 'chiusa') as chiusi
FROM (`azioni_row`, sofferenze)
JOIN crediti ON azioni_row.id_cred=crediti.id_cre
JOIN azioni_head as ah1 ON azioni_row.id_az=ah1.id_az
JOIN azioni_head as ah2 ON ah2.id_soff = sofferenze.id_soff
GROUP BY id_az
ORDER BY `azioni_row`.`id_az` ASC
If I remove sofferenze.Descrizione from the select list and sofferenze from the FROM list it runs in a few seconds:
SELECT DISTINCT azioni_row.id_az, COUNT(crediti.stato = 'aperta') as aperti, COUNT(crediti.stato = 'chiusa') as chiusi
FROM azioni_row
JOIN crediti ON azioni_row.id_cred=crediti.id_cre
JOIN azioni_head as ah1 ON azioni_row.id_az=ah1.id_az
GROUP BY id_az
ORDER BY `azioni_row`.`id_az` ASC
I would like to show the Descrizione field but the link for it is in the head table, not in the row one. The relationship between head and row is a one to many. I store in head all the info that is not necessary to repeat for each row and the link with Descrizione is one of these fields.
EDIT:
this is the explain:
this is the create for azioni_head:
CREATE TABLE `azioni_head` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`tipo` varchar(2) NOT NULL,
`id_az` varchar(11) NOT NULL,
`id_soff` varchar(11) NOT NULL,
`id_soff_gar` varchar(11) DEFAULT NULL,
`date_from` date NOT NULL,
`date_to` date NOT NULL,
`close_why` int(11) NOT NULL,
`RGE` varchar(30) NOT NULL,
`procedente` varchar(2) NOT NULL,
`curatore` varchar(11) NOT NULL,
`legale` varchar(11) NOT NULL,
`tribunale` varchar(11) NOT NULL,
`riparto` varchar(2) NOT NULL DEFAULT '0',
`perc_worst` decimal(13,10) NOT NULL,
`perc_best` decimal(13,10) NOT NULL,
`perc_poster` decimal(13,10) NOT NULL,
`attivo_storico` decimal(65,2) NOT NULL,
`passivo_storico` decimal(65,2) NOT NULL,
`attivo_storico_comm` decimal(65,2) NOT NULL,
`passivo_storico_comm` decimal(65,2) NOT NULL,
`acconti` decimal(65,2) NOT NULL,
`acconti_comm` decimal(65,2) NOT NULL,
`numero_comm` int(11) NOT NULL,
`legali_worst` decimal(65,2) NOT NULL,
`legali_best` decimal(65,2) NOT NULL,
`manuale` tinyint(1) NOT NULL DEFAULT '0',
`created_by` int(11) NOT NULL,
`created_on` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1449 DEFAULT CHARSET=utf8 COMMENT='tabella testata azioni'
this for azioni_row:
CREATE TABLE `azioni_row` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`id_az` varchar(11) NOT NULL,
`id_cred` varchar(11) NOT NULL,
`chiesto` decimal(65,2) NOT NULL,
`ammesso` decimal(65,2) NOT NULL,
`data_ammesso` date NOT NULL,
`rango_ammesso` tinytext NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `id` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4479 DEFAULT CHARSET=utf8
and this for sofferenze
CREATE TABLE `sofferenze` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`id_soff` varchar(11) NOT NULL,
`Descrizione` tinytext NOT NULL,
`gruppo` int(11) NOT NULL,
`cointestazione` int(11) NOT NULL,
`port_man` tinytext NOT NULL,
`head_port_man` tinytext NOT NULL,
`note` longtext NOT NULL,
`created_on` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
`created_by` int(11) NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `id` (`id`),
UNIQUE KEY `id_3` (`id`),
KEY `id_2` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1716 DEFAULT CHARSET=utf8

Answer 1

Please provide proper CREATE statements as well as the output of:
EXPLAIN
SELECT a.id_az
, s.Descrizione
, COUNT(c.stato = 'aperta') aperti
, COUNT(c.stato = 'chiusa') chiusi
FROM azioni_row a
JOIN sofferenze s
CROSS
JOIN crediti c
ON c.id_cre = a.id_cred
JOIN azioni_head ah1
ON ah1.id_az = a.id_az
JOIN azioni_head ah2
ON ah2.id_soff = s.id_soff
GROUP
BY a.id_az
, s.Descrizione
ORDER
BY a.id_az ASC
Edit: You seem to have lots of indexes on the same column. Drop all indexes except the PRIMARY KEYs, and create the following indexes:
sofferenze: id_soff
azioni_row: try a composite index on (id_az,id_cred)
azioni_head: an index on id_soff and an index on id_az
Crediti is missing so I can't comment on that one.