public ColumnCsv(string name, DcTable input, DcTable output, bool isIdentity, bool isSuper)
: base(name, input, output, isIdentity, isSuper)
{
SampleValues = new List <string>();
ColumnIndex = -1;
_data = new ColumnDataEmpty();
_data.Translate();
}
public ColumnAtt(string name, DcTable input, DcTable output)
: base(name, input, output)
{
_data = new ColumnDataEmpty();
_data.Translate();
}
public ColumnRel(string name, DcTable input, DcTable output, bool isIdentity, bool isSuper)
: base(name, input, output, isIdentity, isSuper)
{
_data = new ColumnDataEmpty();
_data.Translate();
}