SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 2) ExpressionList (children 3) Function sum (children 1) ExpressionList (children 1) Identifier id Function sum (children 1) ExpressionList (children 1) Identifier val Function max (children 1) ExpressionList (children 1) Identifier s TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier codecs