table information is not returned in fetchfield method for postgresql
the patch is:
adodb-postgres64.inc.php line 934
add this line:
if (function_exists('pg_field_table')) $o->table = @pg_field_table($this->_queryID,$off);
i used the "if function exists" cause pg_field_table was added in php 5.2
let me know if more help is needed :)