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Simple Streaming issue/bug?

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Apologies if this has been raised before but I couldn't see it, or if I've missed a solution. 

I'm experimenting with Simple Streaming & Wrapped Metanodes in 3.1.2 as the amount of data we're processing has recently increased substantially and have come across an issue/bug.

When the Concatenate (Optional-in) node is in a wrapped metanode configured for streaming it returns an empty table, but with no errors or warnings.

I've attached an example of this which shows a simple process where i) two tables are concatenated, ii) the same process is collapsed into a simple metanode, iii) the metanode is wrapped iv) the wrapped metanode configured for streaming in Job Management.

If I've missed something, please let me know, if this is a genuine issue/bug could someone let me know if it's known and if there's a timeline to resolve it? 

Streaming looks to me to be a really big step forward, really happy it was implemented.

Kind Regards,

Andrew


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