Hi Pranav, You might want to take a look at Apache Drill, as it uses Calcite as a query planner and can executed federated queries against a pretty wide array of data sets. Best, -- C
> On Jul 20, 2022, at 6:56 PM, Pranav Deshpande <[email protected]> > wrote: > > Dear Apache Calcite Team, > I am trying to learn Calcite and wish to build a poc for data federation. > > In the video here, https://www.youtube.com/watch?v=4JAOkLKrcYE, somehow the > presenter and his team managed to squash parts of the Relational Nodes into > "Spark Tables" and then Spark handled the execution of those. > > How do I exactly go about doing this? > > As per this discussion I understand that one has to create a RelOptRule to > do the same. > > Also, one has to somehow define the cost (I don't know how to do this). > > Is there a simple tutorial which demonstrates the basics of this? Like some > kind of simple implementation with ListTable etc. > > Thanks & Regards, > Pranav
