[ https://issues.apache.org/jira/browse/FLINK-20491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17247268#comment-17247268 ]
Aljoscha Krettek commented on FLINK-20491: ------------------------------------------ I extended my work-in-progress PR: https://github.com/apache/flink/pull/14312 For the wiring, I'm extending {{StreamConfig.InputConfig}} to allow specifying a requirement of {{SORTED}} or {{PASS_THROUGH}}. With this, I'm removing the "global" {{SORTED_INPUTS}} field of {{StreamConfig}} because we now allow more fine-grained control. I still have to clean up the commits and add more Javadocs, but WDYT so far? > Support Broadcast State in BATCH execution mode > ----------------------------------------------- > > Key: FLINK-20491 > URL: https://issues.apache.org/jira/browse/FLINK-20491 > Project: Flink > Issue Type: Improvement > Components: API / DataStream > Reporter: Aljoscha Krettek > Assignee: Aljoscha Krettek > Priority: Major > Labels: pull-request-available > > Right now, we don't support {{DataStream.connect(BroadcastStream)}} in > {{BATCH}} execution mode. I believe we can add support for this with not too > much work. > The key insight is that we can process the broadcast side before the > non-broadcast side. Initially, we were shying away from this because of > concerns about {{ctx.applyToKeyedState()}} which allows the broadcast side of > the user function to access/iterate over state from the keyed side. We > thought that we couldn't support this. However, since we know that we process > the broadcast side first we know that the keyed side will always be empty > when doing so. We can thus just make this "keyed iteration" call a no-op, > instead of throwing an exception as we do now. -- This message was sent by Atlassian Jira (v8.3.4#803005)