Ooops. In the recursive function, change the last few lines to:

    pop @tables_seens;

    return @records;
}
[download]

This allows you to remove the @tables_seens = () line in the control section.

I am sorry about forgetting that. I thought about doing a pop, but the dataset you gave at first didn't find that bug. *blushes*

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/me wants to be the brightest bulb in the chandelier!