protected NullableStringTableColumn CreateNullableXmlColumn(string name, ColumnMeta?columnMeta = null)
{
var result = new NullableStringTableColumn(this.Alias, new ExprColumnName(name), this, ExprTypeXml.Instance, columnMeta);
this._columns.Add(result);
return(result);
}
protected NullableStringTableColumn CreateNullableFixedSizeStringColumn(string name, int size, bool isUnicode = false, ColumnMeta?columnMeta = null)
{
var result = new NullableStringTableColumn(this.Alias, new ExprColumnName(name), this, new ExprTypeFixSizeString(size, isUnicode), columnMeta);
this._columns.Add(result);
return(result);
}