What exactly does 1 unit of cost represent in SQL Query Analyzer execution plans? [ie: Subtree Cost: 41.2134] Obviously it is some form of measurement since a very simple "select @@version" is like ...

TEL AVIV, Israel--(BUSINESS WIRE)--Varada, the data lake query acceleration innovator, today announced that it has open-sourced its Workload Analyzer for Presto, including both Trino (formerly known ...