I've run into a problem. each of those modules ask for me to load the file with "open". each of these files are 2GBs each. opening them would overload my ram. This is why I used Tie:File. anyone have a solution that doesn't require me to read the entire file to memory and still be able to match every line of one csv against every line of the other? that is 1,000,000,000 records, and have a script delete the records from that file where it matches any of the records of a second file with about 1,000,000 records? efficiency is key too.(memory = 4GB)

In reply to Re: Very Large CSV Filter by Locke-Eros
in thread Very Large CSV Filter by Locke-Eros

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