Re: [PHP] PDO buffered query problem

Stewart Duncan wrote:
> Hi there,
> 
> I'm having some serious problems with the PHP Data Object functions. I'm 
> trying to loop through a sizeable result set (~60k rows, ~1gig) using a 
> buffered query to avoid fetching the whole set.
> 
> No matter what I do, the script just hangs on the PDO::query() - it 
> seems the query is running unbuffered (why else would the change in 
> result set size 'fix' the issue?). Here is my code to reproduce the 
> problem:
> 
> <?php
> $Database = new PDO(
>     'mysql:host=localhost;port=3306;dbname=mydatabase',
>     'root',
>     '',
>     array(
>         PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
>         PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true
>     )
> );

Don't you want it the other way around? You want it unbuffered so it 
doesn't get retrieved in mysql, send the whole result set to php then 
you can use it.

You want to start using it immediately - so make it unbuffered.

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