Wrong argument send to update function to initialize default value on addField of PostgreSQL

On /includes/database/pgsql/schema.inc start from line 336
if (isset($spec['initial'])) {
$this->connection->update($table)
->fields(array($field, $spec['initial']))
->execute();
}
Should be replace with
if (isset($spec['initial'])) {
$this->connection->update($table)
->fields(array($field => $spec['initial'])) // Must be array(index => value)
->execute();
}