ToDo in PgSQL module:

* read/write BLOBs
  se text file BLOB.txt
* handle quoting
* handle bool in perlish way
* auth (se FIXME concerning CRYPT)
* BUGS:
	* errorhandling
	  handshake no user 'ldap'
	* errorhandling 
	  select etc "NO GRANT"
* write documentation