SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 3) ExpressionList (children 2) Identifier renamed_value2 Identifier renamed_value3 TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier table_for_rename Function equals (children 1) ExpressionList (children 2) Identifier key Literal UInt64_7