One big QVD is greater than itself splitted in some parts. WHY ?
I'm extracting sap LIPS table which have 12 millions of records(more or less) with 285 columns (i really don't need all these columns but for the first time i want to perform a full extraction).
The total size of LIPS.qvd is 2.134.626Kb (2.03Gb) but if split this qvd into some part (in my case i've splitted into12 parts, each with 1 million of record, more or less) the total size of these 12 parts is 1.726.435Kb (1.64Gb), 400Mb less then the source qvd, so my answer is:
Why the size of one big qvd is greater than the total size of the same qvd splitted in some parts ?
The number of record and column are the same in both results.