Can not read mData

hi,

Sources data my JSON format attribute name contain "." ,

then error message "requested unknown parameter 'abc.pv' for row 0...".

code example:

var dtable = $('#PItable').dataTable({
"bProcessing": true,
"aaData": [{
"abc.pv": "99.82"
}],
"aoColumns": [{
mdata: "abc.pv"
}]
});

Attribute name do not contain "." ?

Can help me ? please.