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https://issues.apache.org/jira/browse/FLINK-3659?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aljoscha Krettek updated FLINK-3659:
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Description:
We should add a new operation that has a main input that can be keyed (but
doesn't have to be) and a second input that is always broadcast. This is
similar to a {{CoFlatMap}} or {{CoMap}} but there either both inputs have to be
keyed or non-keyed.
This builds on
This new operation would allow expressing new patterns that cannot be expressed
with the currently expressed operations.
was:
Currently, we only allow partitioned state when both inputs are keyed (with the
same key type). I think a valid use case is to have only one side keyed and
have the other side broadcast to publish some updates that are relevant for all
keys.
When relaxing the requirement to have only one side keyed we must still ensure
that the same key is used if both sides are keyed.
[~gyfora] Did you try this with what you're working on?
> Add ConnectWithBroadcast Operation
> ----------------------------------
>
> Key: FLINK-3659
> URL: https://issues.apache.org/jira/browse/FLINK-3659
> Project: Flink
> Issue Type: Improvement
> Components: Streaming
> Affects Versions: 1.0.0
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
>
> We should add a new operation that has a main input that can be keyed (but
> doesn't have to be) and a second input that is always broadcast. This is
> similar to a {{CoFlatMap}} or {{CoMap}} but there either both inputs have to
> be keyed or non-keyed.
> This builds on
> This new operation would allow expressing new patterns that cannot be
> expressed with the currently expressed operations.
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