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##### SUMMARY
collect data based on the filters 

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
mysql_info

##### ADDITIONAL INFORMATION
On large databases mysql_info runs very long due to size calculations of all db/tables even when this information is not needed (for example quering user information only)

<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

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"""Get slave status if the instance is a slave."""
        res = self.__exec_sql('SHOW SLAVE STATUS')
        if res:
            for line in res:
                host = line['Master_Host']
                if host not in self.info['slave_status']:
                    self.info['slave_status'][host] = {}
                port = line['Master_Port']
                if port not in self.info['slave_status'][host]:
                    self.info['slave_status'][host][port] = {}
                user = line['Master_User']
                if user not in self.info['slave_status'][host][port]:
                    self.info['slave_status'][host][port][user] = {}
                for vname, val in iteritems(line):
                    if vname not in ('Master_Host', 'Master_Port', 'Master_User'):
                        self.info['slave_status'][host][port][user][vname] = self.__convert(val)
    def __get_slaves(self):
        """Get slave hosts info if the instance is a master."""
        res = self.__exec_sql('SHOW SLAVE HOSTS')
        if res:
            for line in res:
                srv_id = line['Server_id']
                if srv_id not in self.info['slave_hosts']:
                    self.info['slave_hosts'][srv_id] = {}
                for vname, val in iteritems(line):
                    if vname != 'Server_id':
                        self.info['slave_hosts'][srv_id][vname] = self.__convert(val)
    def __get_users(self):