SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 3) ExpressionList (children 1) Asterisk TablesInSelectQuery (children 2) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier t1 TablesInSelectQueryElement (children 2) TableExpression (children 1) TableIdentifier right_join (alias j) TableJoin (children 1) ExpressionList (children 1) Identifier x ExpressionList (children 3) OrderByElement (children 1) Identifier x OrderByElement (children 1) Identifier str OrderByElement (children 1) Identifier s