Chunwei Lei created CALCITE-3791: ------------------------------------ Summary: HepPlanner does't clear metadata cache for the ancestors of discarded node when a transformation happens Key: CALCITE-3791 URL: https://issues.apache.org/jira/browse/CALCITE-3791 Project: Calcite Issue Type: Bug Components: core Reporter: Chunwei Lei Assignee: Chunwei Lei
In HepPlanner, when a transformation happens, it will clear metadata cache for the parent of the discarded node[1]. But it doesn't clear the metadata cache for the ancestors of the parent. For example, assume we get a logical plan like A \ B \ C , if we clear the metadata cache for C after applying a rule, we should also clear the metadata cache for A and B since metadata of A and B derive from C. [1][https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/plan/hep/HepPlanner.java#L877] -- This message was sent by Atlassian Jira (v8.3.4#803005)