generateUUIDv4() with query builder

[andrelec1]

I try to define a column with default value = generateUUIDv4()

i try $newTable->addColumn('uuid', 'string', ['default' => 'generateUUIDv4()']);
but the value is string not the function ...

so for the moment i use a little trick like this:

public function up(Schema $schema) : void
    {
        /** @var Connection */
        $conn = $this->container->get('doctrine.dbal.clickhouse_connection');
        /** @var Schema */
        $fromSchema = new Schema();
        /** @var Schema */
        $toSchema = clone $fromSchema;

        $newTable = $toSchema->createTable('probe_datum');
        $newTable->addOption('engine', 'MergeTree');

        $newTable->addColumn('uuid', 'string', ['default' => 'generateUUIDv4()']);
        $newTable->addColumn('datetime_value', 'datetime');
        $newTable->addColumn('value', 'float');
        $newTable->addColumn('probe_id', 'integer');

        $newTable->setPrimaryKey(['uuid', 'datetime_value', 'probe_id']);

        $sqlArray = $fromSchema->getMigrateToSql($toSchema, $conn->getDatabasePlatform());

        foreach ($sqlArray as $sql) {
            $hackSql = str_replace('\'generateUUIDv4()\'', 'generateUUIDv4()', $sql);
            $conn->exec($hackSql);
        }
    }

how can i do this properly ?