Re: Implementation of GROUPING SETS (T431: Extended grouping capabilities) - Mailing list pgsql-hackers

From Alvaro Herrera
Subject Re: Implementation of GROUPING SETS (T431: Extended grouping capabilities)
Date
Msg-id 20090807214500.GJ5290@alvh.no-ip.org
Whole thread Raw
In response to Re: Implementation of GROUPING SETS (T431: Extended grouping capabilities)  (Олег Царев <zabivator@gmail.com>)
Responses Re: Implementation of GROUPING SETS (T431: Extended grouping capabilities)  (Hitoshi Harada <umi.tanuki@gmail.com>)
List pgsql-hackers
Олег Царев escribió:
> Hello all!
> If no one objecte (all agree, in other say) i continue work on patch -
> particulary, i want support second strategy (tuple store instead of
> hash-table) for save order of source (more cheap solution in case with
> grouping sets + order by), investigate and brainstorm another
> optimisation, writing regression tests and technical documentation.
> But I need some time for complete my investigation internals of
> PostgreSQL, particulary CTE.

Where are we on this patch?  Is it moving forward?

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support


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