Basic information:

php7.2-phalcon=3.4.2-2
Phalcon DevTools (3.4.0)
mysql: 5.7.25

I have a table:

> CREATE TABLE data
(
    id    int auto_increment  primary key,
    amount double   not null,
    created_at datetime not null
);

Create migrations for it through dev tools command:

phalcon migration generate --table=data --config=../../config/config.php --migrations=/application/app/modules/test/migrations

Get such migration:

...
class DataMigration_101 extends Migration
{
    /**
     * Define the table structure
     *
     * @return void
     */
    public function morph()
    {
        $this->morphTable('Data', [
                'columns' => [
                    new Column(
                        'id',
                        [
                            'type' => Column::TYPE_INTEGER,
                            'notNull' => true,
                            'autoIncrement' => true,
                            'size' => 11,
                            'first' => true
                        ]
                    ),
                    new Column(
                        'amount',
                        [
                            'type' => Column::TYPE_DOUBLE,
                            'notNull' => true,
                            'size' => 1,
                            'after' => 'id'
                        ]
                    ),
                    new Column(
                        'created_at',
                        [
                            'type' => Column::TYPE_DATETIME,
                            'notNull' => true,
                            'size' => 1,
                            'after' => 'amount'
                        ]
                    )
                ],
                'indexes' => [
                    new Index('PRIMARY', ['id'], 'PRIMARY')
                ],
                'options' => [
                    'TABLE_TYPE' => 'BASE TABLE',
                    'AUTO_INCREMENT' => '1',
                    'ENGINE' => 'InnoDB',
                    'TABLE_COLLATION' => 'utf8_general_ci'
                ],
            ]
        );
    }
...

After that I drop table and try restore it from migration through dev tools:

phalcon migration run --config=../../config/config.php --migrations=/application/app/modules/test/migrations

And get the error:

> ERROR: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') NOT NULL,
    `created_at` DATETIME NOT NULL,
    PRIMARY KEY (`id`)
) ENGINE=InnoDB' at line 3

I have the situation when migrations were created successfully but I cannot used them? What wrong?

P/S: If change Column::TYPE_DOUBLE on 'double' command "phalcon migration run ..." will pass without errors but it is not a normal situation or maybe I do something wrong.

Help, please.