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xiaogang zhou edited comment on FLINK-19847 at 10/28/20, 8:20 AM: ------------------------------------------------------------------ In our situation, we use a Asynclookup for the redis and some inner rpc service. we combine multikey lookup to save the network cost. so the DDL uses the array type. when i try to join on array, some exception happens. and I notice the todo. looks like something need to be done in the extractConstantField? was (Author: zhoujira86): In our situation, we use a Asynclookup for the redis and some inner rpc service. we combine multikey lookup to save the network cost. so the DDL uses the array type. where i try to join on array, some exception happens. and I notice the todo. looks like something need to be done in the extractConstantField? > Can we create a fast support on the Nested table join? > ------------------------------------------------------ > > Key: FLINK-19847 > URL: https://issues.apache.org/jira/browse/FLINK-19847 > Project: Flink > Issue Type: Wish > Components: API / DataStream > Affects Versions: 1.11.1 > Reporter: xiaogang zhou > Priority: Major > > In CommonLookupJoin, one TODO is > support nested lookup keys in the future, > // currently we only support top-level lookup keys > > can we create a fast support on the Array join? thx -- This message was sent by Atlassian Jira (v8.3.4#803005)