SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 3) ExpressionList (children 4) Function tuple (alias key) (children 1) ExpressionList (children 2) Identifier x Identifier y Function dictGetOrDefault (children 1) ExpressionList (children 4) Literal \'01760_db.dict_array\' Literal \'name\' Identifier key Literal \'DefaultName\' Function dictGetOrDefault (children 1) ExpressionList (children 4) Literal \'01760_db.dict_array\' Literal \'value\' Identifier key Literal UInt64_30 Function dictGetOrDefault (children 1) ExpressionList (children 4) Literal \'01760_db.dict_array\' Literal \'value_nullable\' Identifier key Literal UInt64_40 TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) TableIdentifier 01760_db.points ExpressionList (children 2) OrderByElement (children 1) Identifier x OrderByElement (children 1) Identifier y