Re: proposal: searching in array function - array_position
| От | Pavel Stehule | 
|---|---|
| Тема | Re: proposal: searching in array function - array_position | 
| Дата | |
| Msg-id | CAFj8pRBeBapPz5eSi7v2arQbt8txMaL88-fcCrdgjw20wwQitA@mail.gmail.com обсуждение исходный текст  | 
		
| Ответ на | Re: proposal: searching in array function - array_position (Alvaro Herrera <alvherre@2ndquadrant.com>) | 
| Ответы | 
                	
            		Re: proposal: searching in array function - array_position
            		
            		 | 
		
| Список | pgsql-hackers | 
Hi
here is updated patch with array_position, array_positions implementation.2015-03-20 18:29 GMT+01:00 Alvaro Herrera <alvherre@2ndquadrant.com>:
Pavel Stehule wrote:
> 2015-03-20 17:49 GMT+01:00 Dean Rasheed <dean.a.rasheed@gmail.com>:
>
> > There's an issue when the array's lower bound isn't 1:
> >
> > select array_offset('[2:4]={1,2,3}'::int[], 1);
> > array_offset
> > --------------
> > 1
> > (1 row)
> >
> > whereas I would expect this to return 2. Similarly for
> > array_offsets(), so the offsets can be used as indexes into the
> > original array.
> >
>
> I am thinking, so it is ok - it returns a offset, not position.
So you can't use it as a subscript? That sounds unfriendly. Almost
every function using this will be subtly broken.
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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