Undefined Function ‘NAN’ In Expression

When starting Quickmap v7, you may get this error:

Quickmap found a problem

Undefined function ‘nan’ in expression.

Additional Information: WktSet::Query SELECT
qry_road_name.id,gp,label,shape,xmax,ymax,xmin,ymin, FROM
qry_road_name WHERE ((inf > xmax and -nan(ind) <= xmax) or (xmax > inf and xmin <= inf)) AND                    ((inf > ymax and -nan(ind) <= ymax) or (ymax > inf and ymin <= inf))

To fix this, upgrade Quickmap to the latest version.

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