in reply to Re^4: how to find differences between two huge files
in thread how to find differences between two huge files

Yes. But in some tests I did a while ago (so it may no longer be true), it appeared to me that the second part is produced even if you request it to be discarded. Normally insignificant, but if the records are very large (the OP mentioned 150+ fields) then there seemed no reason to produce what you do not need.

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