Re: LIMIT BASED ON PERCENT

Could you not create a function to do this instead?

Set var_limit = 20% of row count
Replace subquery with var_limit

Kris


On 18-Nov-09, at 14:27, Guillaume Lelarge <guillaume@lelarge.info>
wrote:

> Le mercredi 18 novembre 2009 à 20:24:09, Another Trad a écrit :
>> No, It doesn't.
>> In my machine:
>>
>> First select
>> ERROR:  syntax error at end of input
>> LINE 1: select * from rapadura.cliente limit 20%
>>                                                ^
>> Second one:
>> ERROR:  argument of LIMIT must not contain subqueries
>>
>> Postgres 8.3
>>
>
> It works for Lee because obviously he's working on a 8.4 server. You
> can use
> subquery in a LIMIT clause if you have an 8.4 PostgreSQL server. For
> earlier
> releases, there's no way to do this in a single query.
>
>
> --
> Guillaume.
> http://www.postgresqlfr.org
> http://dalibo.com
>
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