/**
* For creating regular columns
* @return
*/
protected AbstractColumn buildSimpleColumn() {
SimpleColumn column = new SimpleColumn();
populateCommonAttributes(column);
columnProperty.getFieldProperties().putAll(fieldProperties);
column.setColumnProperty(columnProperty);
column.setExpressionToGroupBy(customExpressionToGroupBy);
column.setFieldDescription(fieldDescription);
return column;
}