From: Rob Sargent <robjsargent@gmail.com>
To: pgsql-sql@postgresql.org
Subject: Re: pass in array to function for use by where clause? how optimize?
Date: Wed, 13 Apr 2011 09:48:27 -0600
Message-ID: <4DA5C5CB.3030907@gmail.com> (raw)
In-Reply-To: <5079.1302707363@sss.pgh.pa.us>
References: <BANLkTinHyTWh-HZPm0XoTqYEtEqJ8T-iRw@mail.gmail.com>
<5079.1302707363@sss.pgh.pa.us>
On 04/13/2011 09:09 AM, Tom Lane wrote:
> Anish Kejariwal<anishkej@gmail.com> writes:
>> (select store_id, avg(sales) sales
>> from store
>> where group_id in(select $1[i] from generate_subscripts($1, 1) g(i))
>
> Seems like a pretty brute-force way to deal with the array. Try
>
> where group_id = any($1)
>
> Not sure if it'll be a great deal faster, but it's at least easier to
> write.
>
> regards, tom lane
>
Would adding a subservient function which actually uses the value of the
iteration (group_id) as a single parameter be of any use?
rjs
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To: pgsql-sql@postgresql.org
Cc: robjsargent@gmail.com
Subject: Re: pass in array to function for use by where clause? how optimize?
In-Reply-To: <4DA5C5CB.3030907@gmail.com>
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