[BioC] Genominator question

[rcaloger]

I found Genominator very useful to store NGS data.
However, I have a question concerning the data model.
Data are saved in Genominator as:
chr INTEGER, strand INTEGER, location INTEGER
Although I can exchange X, Y and MT chromosome labels with INTEGERS, I 
wonder if  the chr definition can be changed from INTEGER to CHARACTER.
Cheers
Raffaele

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Prof. Raffaele A. Calogero
Bioinformatics and Genomics Unit
Dipartimento di Scienze Cliniche e Biologiche
c/o Az. Ospedaliera S. Luigi
Regione Gonzole 10, Orbassano
10043 Torino
tel.   ++39 0116705417
Lab.   ++39 0116705408
Fax    ++39 0119038639
Mobile ++39 3333827080
email: raffaele.calogero at unito.it
        raffaele[dot]calogero[at]gmail[dot]com
www:   http://www.bioinformatica.unito.it
Info: http://publicationslist.org/raffaele.calogero