Re: Limit+Offset query wrong result in Postgres 9.0.3 ?

On 12 October 2012 04:55, urkpostenardr <urkpostenardr@gmail.com> wrote:
> Hi,
>
> Is this bug in Postgres ?
> If yes, is it fixed in latest release ?
> Second query should return 2 rows instead of 1 ?
>
> create table t(i int);
> insert into t values(1);
> insert into t values(2);
> insert into t values(3);
> pgdb=# select i from t order by i limit 9223372036854775806 offset 1;
> select i from t order by i limit 9223372036854775806 offset 1;
> i
> 2
> 3
> (2 rows)
> pgdb=# select i from t order by i limit 9223372036854775807 offset 1;
> select i from t order by i limit 9223372036854775807 offset 1;
> i
> 2
> (1 row)
> pgdb=#

You seem to have hit the end of a 32-bit signed integer and it wraps
around. There's probably some internal code that modifies limit-values
 <1 to 1, or you wouldn't have gotten any results at all...

It does seem a fairly insane number to use for limit, it's probably
better to leave it out if you're going to accept that many results.

--
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Cut the trees and you'll see there is no forest.