in Export/Pgsql.php line 297 createSequenceSql actual performs the query instead of returning the sql.

the funciton should be

public function createSequenceSql($sequenceName, $start = 1, array $options = array())

{

$sequenceName = $this->conn->quoteIdentifier($this->conn->formatter->getSequenceName($sequenceName), true); return 'CREATE SEQUENCE ' . $sequenceName . ' INCREMENT 1' .

($start < 1 ? ' MINVALUE ' . $start : ) . ' START ' . $start;

}