Liya Fan created CALCITE-3851: --------------------------------- Summary: Store nodes with zero importance with a set Key: CALCITE-3851 URL: https://issues.apache.org/jira/browse/CALCITE-3851 Project: Calcite Issue Type: Improvement Components: core Reporter: Liya Fan
Currently, volcano planner stores rel node importances with a map. In fact, the value of the map can only be 0. So there is no need to store the values, and we replace the map with a set to store nodes whose importances are 0. This makes the code logic clearer, and avoids instability caused by comparing floating point values. -- This message was sent by Atlassian Jira (v8.3.4#803005)