AX 2009 to AX 2012 upgrade question

Hi All,

I have a question related to data upgrade for financial dimension and LedgerDimension fields in AX 2012. In AX 2009, there are some new tables which have Dimension and LedgerAccount columns. After doing code upgrade in AX 2012 environment, I renamed the fields as DEL_Dimension and DEL_LedgerAccount and add new fields DefaultDimension and LedgerDimension respectively as a replacement. I want to know that during data upgrade, will the data be populated in DefaultDimension and LedgerDimension fields automatically as a result of bulk copy process or do I need to a write an upgrade script for this purpose?

Thanks,

Baber.