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Re: pretty bad n_distinct estimate, causing HashAgg OOM on TPC-H - Mailing list pgsql-hackers

From Alvaro Herrera
Subject Re: pretty bad n_distinct estimate, causing HashAgg OOM on TPC-H
Date
Msg-id 20150620153611.GY133018@postgresql.org
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In response to Re: pretty bad n_distinct estimate, causing HashAgg OOM on TPC-H  (Feng Tian <ftian@vitessedata.com>)
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Feng Tian wrote:

> I have not read Jeff's patch, but here is how I think hash agg should work,

I think you should discuss that in Jeff's thread, not here.

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

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