I'm reading some papers about aggregation push down like in "
https://ub-madoc.bib.uni-mannheim.de/37228/1/main.pdf"; and "
http://www.vldb.org/conf/1995/P345.PDF";. I think it is very useful but very
complex to implement. In some complex queries, it can be a lot faster. Is
there any plan to do this in the future?


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