Already checked, same number of rows (102001), same encoding (UTF-8 w/o BOM) but I dnoticed that in the file with INSERT OVERWRITE, between every field there is a SOH…probably is the replacement of the delimiter, in the original file is | . Could this be the reason of the file increase? SOH is not data, for instance I could not delete it to check whether it affects the size of the file. I did not notice anything else besides the SOH
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