Julian Hyde commented on APEXMALHAR-1818:

[~chinmay], I watched the demo video and took a look at your code, and it all 
looks fine. I suspect that you could get semantic stuff like view substitution 
with a low amount of effort.

I know you're planning inner join (I presume stream-to-stream join?). It will 
be interesting when you also support streaming GROUP BY and streaming windowed 
aggregate functions.

I started work on a streaming TCK in Calcite; see CALCITE-1114. You could 
potentially use that to verify that your implementation of streaming SQL is 

> Integrate Calcite to support SQL
> --------------------------------
>                 Key: APEXMALHAR-1818
>                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-1818
>             Project: Apache Apex Malhar
>          Issue Type: New Feature
>          Components: query operators
>            Reporter: Amol
>            Assignee: Chinmay Kolhatkar
>              Labels: roadmap
> Once we have ability to generate a subdag, we should take a look at 
> integrating Calcite into Apex. The operator that enables populate DAG, should 
> use Calcite to generate the DAG, given a SQL query.

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