Re: [SQL] Bitwise operation

[Rudi Starcevic]

Bruno,Hubert,

Thanks.
It's all crystal clear now.

Now I can keep moving on with my app.

If all goes well I hope to add a 'techdoc' on how to do this.
I've found documents from other DBMS on using Bitwise operations
but not PG.

Cheers
Rudi.

Bruno Wolff III wrote:

On Mon, Jun 30, 2003 at 22:28:15 +1000,
  Rudi Starcevic <[EMAIL PROTECTED]> wrote:
  

Hi,

I'm learning to use Postgresql's bitwise operator's as I'm interested
in building super fast search's based on user selections in web forms.

So far so good but I have just lost it a little so I thought I'd post.
Please growl at me if I'm asking on the wrong list :-)

I understand this:

SELECT 111 & 11 = 11

but not this

SELECT 1111 & 111 = 71

I was expecting the second example to be 

SELECT 1111 & 111 = 111
    

In the above examples the numbers are decimal values.

Maybe you wanted to do something like the following:

area=> select b'1111' & b'0111';
 ?column?
----------
 0111
(1 row)

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