Phalcon\Mvc\Model\MetaData::readMetaData (Phalcon\Mvc\ModelInterface $model) do not return columns comments

[3axap4eHko]

Phalcon\Mvc\Model\MetaData::readMetaData (Phalcon\Mvc\ModelInterface $model) do not return columns comments.
And PHQL do not understand "SHOW FULL COLUMNS FROM table_name;"
Syntax error, unexpected token IDENTIFIER(SHOW), near to ' FULL COLUMNS FROM table_name'

[phalcon]

You can use:

$this->db->query("SHOW FULL COLUMNS FROM table_name");

[3axap4eHko]

what is instance of "db" property?

[phalcon]

Is the 'db' service, you can directly access your database if you need to get specific database-related data as the comments, in this case