Re: Converting integer to binary
| От | Chris Gamache | 
|---|---|
| Тема | Re: Converting integer to binary | 
| Дата | |
| Msg-id | 20040610202415.89117.qmail@web13804.mail.yahoo.com обсуждение исходный текст  | 
		
| Ответ на | Re: Converting integer to binary (Bruno Wolff III <bruno@wolff.to>) | 
| Ответы | 
                	
            		Re: Converting integer to binary
            		
            		 | 
		
| Список | pgsql-sql | 
Once upon a time in PostgreSQL there was a function : bitfromint4 ... Any idea
where it has disappeared to?
You can do
# select B'10101101'::int4;int4
------ 173
(1 row)
but you want to go
# select 173::varbit;
which is what bitfromint4 used to do.
CG
--- Bruno Wolff III <bruno@wolff.to> wrote:
> On Thu, Jun 10, 2004 at 14:52:41 +0100,
>   Stephen Quinney <stephen.quinney@computing-services.oxford.ac.uk> wrote:
> > 
> > I have searched around but I cannot see any standard way in PostgreSQL
> > to convert from an integer into a binary representation.
> > 
> > Now I have an algorithm to do it so I could write an SQL function, I
> > guess. If there's a standard way to do it though that would be quite nice.
> 
> There doesn't seem to currently be a function that does this. to_char
> would be the logical place since that is what is used to convert various
> numeric types to strings with a decimal representation.
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
    
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