private string AddFilterColumnCommandText(DmColumn col)
{
var quotedColumnName = new ObjectNameParser(col.ColumnName, "[", "]").QuotedString;
var quotedColumnType = new ObjectNameParser(col.GetSqlDbTypeString(), "[", "]").QuotedString;
quotedColumnType += col.GetSqlTypePrecisionString();
return(string.Concat("ALTER TABLE ", quotedColumnName, " ADD ", quotedColumnType));
}