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From: Rob Sargent <robjsargent@gmail.com>
To: pgsql-sql@postgresql.org
Subject: Re: Is there an upper limit on the size of an array if it is indexed?
Date: Mon, 24 Feb 2014 13:35:08 -0700
Message-ID: <530BACFC.7080807@gmail.com> (raw)
In-Reply-To: <1393273817988-5793380.post@n5.nabble.com>
References: <1393273817988-5793380.post@n5.nabble.com>
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On 02/24/2014 01:30 PM, AlexK wrote:
> I have created a unique index on an array of integers, and it works for a
> small test case:
>
> create table i(id int not null primary key,
> v int[] not null unique );
>
> insert into i(id, v) values(1, ARRAY[1,2]);
>
> -- fails
> insert into i(id, v) values(2, ARRAY[1,2]);
> -- succeeds
> insert into i(id, v) values(2, ARRAY[2,1]);
>
> Is there an upper limit on the size of an array being indexed? I am
> currently considering arrays of 2K-3K integers.
>
>
>
What are the odds?  Might be worth the risk.

rjs



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