> Le 17 nov. 2016 à 10:48, Sujit Shah <[email protected]> a écrit : > > Maybe not but it sure makes one suspicious as to what is 4D using so much > space for.
It's the counterpart of what makes so easy changing a field type in 4D… Very schematically, field values are stored in a kind of fixed length container, 128bytes, and fixed length is full of nothing. The picture under is a very simple data were I stored "01234567"*4 in a uuid field, opened with an hex editor: <http://screencast.com/t/xtrKODKHzWAk> I suppose 1cer stands for "record", or "part 1 of record" orange = a block 128bytes (0x80 in hexa) yellow = emptiness. (I was trying to understand how uuid are stored :-/ ) I have a 4DD compressed from 10Gb to 600Mb with 7z. First time I saw that I was sure the archive was corrupted. -- Arnaud de Montard ********************************************************************** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:[email protected] **********************************************************************
