Data compression different in QlikView 12 than in QlikView 11
Article Number: 000030813 | Last Modified: 2018/06/12
You might encounter that after saving a QlikView app in QlikView 12, the disk space usage of the file becomes higher than with version 11.20.
This is due to the new data structure in QlikView 12 being harder to compress with out compression algorithm. Setting the compression to "None" in the Document Properties of the app will show you that you still have the same file size in both versions. The new structure will have no negative effect on the functionality or performance of the app, only the file size when using compression is bigger.
The reason for the new data structure in QV12 is to increase the performance of reloading data and using the application. If file size is a critical issue you can still improve the compression of the application by sorting your tables in the load script manually during reload (but this will impact reload speed of course).