SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 1) Function sumMap (children 1) ExpressionList (children 1) Function tuple (children 1) ExpressionList (children 2) Identifier statusMap.status Identifier statusMap.requests TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier sum_map