On 07/15/2015 07:07 PM, Jeff Davis wrote:
On Wed, 2015-07-15 at 12:59 +0530, Atri Sharma wrote:

I think a heuristic would be more suited here and ignoring memory
consumption for internal types means that we are not making the
memory accounting useful for a set of usecases.

OK, I will drop this patch and proceed with the HashAgg patch, with
a heuristic for internal types.

Could someone briefly explain what heuristics are we talking about?

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

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