Aggregation push down, reorder of join and group by

From: Chenxi Li <spiritlcx(at)gmail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Aggregation push down, reorder of join and group by
Date: 2016-10-05 05:19:07
Message-ID: CAJQBB7JOFzqaKNh-guY8bocbb6-Xgxtzbot8tOFfH9RL9w8Ggw@mail.gmail.com
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Hello,

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?

Regards

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