BogDan Vatra wrote:
> The following bug has been logged online:
> 
> Bug reference:      1921
> Logged by:          BogDan Vatra
> Email address:      [EMAIL PROTECTED]
> PostgreSQL version: 8.0.3
> Operating system:   win xp pro
> Description:        NULL<>NULL ?!?!?!?!?!?!?
> Details: 
> 
> Please execute this query:
> 
> create table test (id serial, tt varchar(50));
> insert into test (tt) values(NULL);
> select tt from test where tt=NULL;
> 
> This should return 1 row but ...
> An then try 
> 
> select tt from test where tt<>NULL;
> 
> 0 row(s) !!!

This is not a bug. If you want find all values with that
field null you have to do:

select tt from test where tt is null;

And I can assure you this is what the standard say.


Regards
Gaetano Mendola


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