Re: Parallel Aggregate

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От
Alvaro Herrera
Тема
Re: Parallel Aggregate
Дата
Msg-id
20160321024841.GA351174@alvherre.pgsql
Ответ на
Re: Parallel Aggregate (David Rowley)
Список
Дерево обсуждения
Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate Paul Ramsey <pramsey@cleverelephant.ca>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate Paul Ramsey <pramsey@cleverelephant.ca>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate Amit Langote <amitlangote09@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Alvaro Herrera <alvherre@2ndquadrant.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Alvaro Herrera <alvherre@2ndquadrant.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Alvaro Herrera <alvherre@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate James Sewell <james.sewell@lisasoft.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Amit Kapila <amit.kapila16@gmail.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate James Sewell <james.sewell@lisasoft.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Amit Kapila <amit.kapila16@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Amit Kapila <amit.kapila16@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate James Sewell <james.sewell@lisasoft.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate James Sewell <james.sewell@lisasoft.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Paul Ramsey <pramsey@cleverelephant.ca>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate James Sewell <james.sewell@lisasoft.com>
Re: Parallel Aggregate Robert Haas <robertmhaas@gmail.com>
Re: Parallel Aggregate James Sewell <james.sewell@lisasoft.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate James Sewell <james.sewell@lisasoft.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate James Sewell <james.sewell@lisasoft.com>
Re: Parallel Aggregate James Sewell <james.sewell@lisasoft.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate Tom Lane <tgl@sss.pgh.pa.us>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
Re: Parallel Aggregate Simon Riggs <simon@2ndQuadrant.com>
Re: Parallel Aggregate David Rowley <david.rowley@2ndquadrant.com>
Re: Parallel Aggregate Haribabu Kommi <kommi.haribabu@gmail.com>
David Rowley wrote:
> I've rewritten the comment to become:
> 
> /*
> * Providing that the estimated size of the hashtable does not exceed
> * work_mem, we'll generate a HashAgg Path, although if we were unable
> * to sort above, then we'd better generate a Path, so that we at least
> * have one.
> */
> 
> How about that?

I think "Providing" should be "Provided".

-- 
Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


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