realno edited a comment on issue #1916:
URL:
https://github.com/apache/arrow-datafusion/issues/1916#issuecomment-1058871647
+1 Ballista should be a standalone system.
I think there is another side of this question- do we consider DataFusion as
a pure library? Would this change how things are organized?
If so, what is the API to interface with other clients, logical plan?
physical plan? And where would SQL parsing, optimizer and planner go?
First thought came to mind is to have physical plan be the interface,
different clients can extend SQL parser, optimizer and planner as needed. Most
can reuse the existing implementation, an example for Ballista is to extend the
planner to support udf.
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