-ikegami I've followed your logic but I'm having the following issue:
my %array2 = map { $_->[0] => $_ } @array2;
produces the following problem:
The %array2 contains a single line: key="" and %array{$key} returns one record from array2

The initial array from the file contains 200k records but they are not being added to the hash...
I've tried many ways to map the array but I've been unsuccessful so far...
Thanks again for you help.

In reply to Re^2: matching large arrays then updating by devan999
in thread matching large arrays then updating by devan999

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