Inconsistent CSV export

[raj@ad4u.co.uk]

Hi,

I have about 60,000 items and the shop is working fine.

I need to export the products and Url_aliases which I use to create feeds for google sitemap and merchant store.

Something changed recently or I've reached a number of items where this issue has come up. I have to export the
products files as items 0-39999 and items 40000-99999 otherwise the process does not complete and there is no output to the browser or in the admin/system/data on the server.

The issue:
For the first file 0-39999 the image url is at field 60 in the CSV
For the second file 40000-99999 the image url is at field 56

Ideally I like to be able to export and download everything in one file if that is possible.

[Basara]

Hello.
Process may stack if not enough server ram or CPU resources