If that is a sound approach, then my entire project could be reduced to simple selects of the form 
select col_2 from theTable where col_1 = $some_value;

[download]
and then finding the intersection of two or more arrays.

In that case, I am on a mission to find the absolutely most efficient array-interesection-finder routine possible. Yes, I've read and tried solutions from perlfaq4, and variations found by a search here on PM. I wonder if for the very specific application of two lists, each between 4,000 and 10,000 elements long, there isn't some ultra-simple and rapid approach.

In reply to Re: Basic Perl array intersection faster than mysql query join. by punch_card_don
in thread Basic Perl array intersection faster than mysql query join. by punch_card_don

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