[ https://issues.apache.org/jira/browse/CALCITE-3791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chunwei Lei updated CALCITE-3791: --------------------------------- Summary: HepPlanner doesn't clear metadata cache for the ancestors of discarded node when a transformation happens (was: HepPlanner does't clear metadata cache for the ancestors of discarded node when a transformation happens) > HepPlanner doesn'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 > Priority: Major > > 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)