Botong Huang created CALCITE-3947: ------------------------------------- Summary: AbstractRelOptPlanner.classes should be LinkedHashSet so that rule match order is deterministic across runs Key: CALCITE-3947 URL: https://issues.apache.org/jira/browse/CALCITE-3947 Project: Calcite Issue Type: Improvement Reporter: Botong Huang
AbstractRelOptPlanner.classes is used by subClasses() to determine things to put into VolcanoPlanner.classOperands, which is then used in VolcanoPlanner.fireRules(). Since AbstractRelOptPlanner.classes is now a HashSet, its iteration order is not deterministic across runs, making debugging hard. It should be LinkedHashSet just like many other fields in the planner. -- This message was sent by Atlassian Jira (v8.3.4#803005)