godfrey he created CALCITE-2690: ----------------------------------- Summary: Uses ·getDescription· instead of ·toString· when gets RelNode's digest Key: CALCITE-2690 URL: https://issues.apache.org/jira/browse/CALCITE-2690 Project: Calcite Issue Type: Improvement Components: core Reporter: godfrey he Assignee: Julian Hyde
Currently, We use a lot of RelNode's toString method to get digest. However the semantics of `toString` method is ambiguity. If some developers do not know the toString value of a RelNode will be used as digest and override toString method arbitrarily, the optimization result will be unexpected. So I suggest that we should use ·getDescription· instead of ·toString· to get RelNode's digest in Calcite. -- This message was sent by Atlassian JIRA (v7.6.3#76005)