[FLINK-6135] Allowing adding additional inputs to StreamOperator

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: API / DataStream
• Assignee: Unassigned
• Reporter: Aljoscha Krettek
• Created: 20/Mar/17 17:28
• Updated: 23/Apr/21 13:57

Description

As mentioned in https://cwiki.apache.org/confluence/display/FLINK/FLIP-17+Side+Inputs+for+DataStream+API we need to be able to add additional inputs to a {{StreamOperator}.

There is a (somewhat old) design document here: https://docs.google.com/document/d/1ZFzL_0xGuUEnBsFyEiHwWcmCcjhd9ArWsmhrgnt05RI/edit#heading=h.pqg5z6g0mjm7 and some proof-of-concept code here: https://github.com/aljoscha/flink/tree/operator-ng-side-input-wrapper