Re: Large Result and Memory Limit

From: André Volpato <andre(dot)volpato(at)ecomtecnologia(dot)com(dot)br>
To: Mike Ginsburg <mginsburg(at)collaborativefusion(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Large Result and Memory Limit
Date: 2007-10-04 19:49:36
Message-ID: 470543D0.2090607@ecomtecnologia.com.br
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Mike Ginsburg escreveu:
> Hello,
> I am working on a personnel registry that has upwards of 50,000
> registrants. Currently I am working on an export module that will
> create a CSV from multiple tables. I have managed to keep the script
> (PHP) under the memory limit
okay... some info needed here.
1. memory on the DB server
2. memory_limit on php.ini
> when creating and inserting the CSV into the database. The problem
> comes when I try to query for the data and export it. Memory limit is
> a major concern, but the query for one row returns a result set too
> large and PHP fails.
a single row is enough to crash PHP ?

>
> I've thought about storing the data in multiple rows and then querying
> one-by-one and outputting, but was hoping there was a better way.
if you can´t raise memory_limit, I think it´s the only way.

[]´s
ACV

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