SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 3) ExpressionList (children 1) Literal UInt64_2 TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier system.one Function and (children 1) ExpressionList (children 2) Function in (children 1) ExpressionList (children 2) Literal Tuple_(UInt64_1, UInt64_1) Subquery (children 1) SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 2) Literal UInt64_1 (alias x) Identifier x Function in (children 1) ExpressionList (children 2) Literal Tuple_(UInt64_1, UInt64_0) Subquery (children 1) SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 2) Literal UInt64_1 (alias x) Identifier x