| From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
|---|---|
| To: | Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Marko Tiikkaja <marko(at)joh(dot)to>, Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, Petr Jelinek <petr(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com> |
| Subject: | Re: proposal: searching in array function - array_position |
| Date: | 2015-03-20 17:16:25 |
| Message-ID: | CAFj8pRA5t81AgvmwmCPNzJLZKeahENvG3QXrCrf+qGX3E6mqPQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
2015-03-20 17:49 GMT+01:00 Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>:
> On 18 March 2015 at 19:03, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
> wrote:
> > Pushed after adding error checks there and fixing the docs to match.
> > Please verify.
> >
>
> 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.
Regards
Pavel
>
> Regards,
> Dean
>
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