Horton

Re: Hash support for grouping sets

Andrew Gierth <andrew@tao11.riddles.org.uk>

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From: Andrew Gierth <andrew@tao11.riddles.org.uk>
To: Andres Freund <andres@anarazel.de>
Cc: Mark Dilger <hornschnorter@gmail.com>, pgsql-hackers@postgresql.org
Date: 2017-03-24T23:39:30Z
Lists: pgsql-hackers

Attachments

>>>>> "Andres" == Andres Freund <andres@anarazel.de> writes:

 >> I could move most of the block comment for ExecInitAgg up into the
 >> file header; would that be better?

 Andres> Yes, I think so.

Done that and some other clarifications. Attached is the latest patch;
no substantive changes, only comments, formatting and a change to a
variable name.

The performance side of things I'm still working on; I think that would
be best handled as a followup patch.

-- 
Andrew (irc:RhodiumToad)

Commits

  1. Support hashed aggregation with grouping sets.