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Re: large resultset

From: Thom Brown <thombrown(at)gmail(dot)com>
To: vinny <vinny(at)xs4all(dot)nl>
Cc: AI Rumman <rummandba(at)gmail(dot)com>, pgsql-php(at)postgresql(dot)org
Subject: Re: large resultset
Date: 2010-06-15 09:43:35
Message-ID: AANLkTimJPh6X78KS0rflYhLcldMtrIq8S4HfMVMKUJfS@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-php
On 15 June 2010 10:40, vinny <vinny(at)xs4all(dot)nl> wrote:

>
> On Tue, 15 Jun 2010 10:33:05 +0100, Thom Brown <thombrown(at)gmail(dot)com>
> wrote:
> > On 15 June 2010 09:31, AI Rumman  wrote:
> >  How to return large resutlset (almost 2 millions record) in php?
> >
> > Presumably this is so people can download results rather than display
> > them in a browser?
> >
> > Here's a basic a raw version of what you can do:
> >
> > $db = pg_connect($connection_string);
> >
> > $results = pg_query($db, $query);
> >
> > while ($result = pg_fetch_array($results)
> > {
> >     echo implode("|", $result) . "\n"; //typo before
> > }
> >
> > pg_close($db);
> >
> > Obviously that wouldn't do by itself, but it's quite simple to loop over
> > a result set.
> >
> > Regards
> >
> > Thom
> >
>
> If that's the case surely you'd use some SQL to merge the data into one
> long string and return it in a single record.
> Looping over two million results is going to take a while, not to mention
> quite a bit of memory.
> v.
>
>
I don't understand.  Return all data as a single massive string?

Thom

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