[HACKERS] to-do item for explain analyze of hash aggregates?

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От Jeff Janes
Тема [HACKERS] to-do item for explain analyze of hash aggregates?
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Msg-id CAMkU=1zo+f5CnZ6N-57G0fqx28sY96KyiN5uBHacoYx+N7KjHA@mail.gmail.com
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Ответы Re: [HACKERS] to-do item for explain analyze of hash aggregates?
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The explain analyze of the hash step of a hash join reports something like this:

   ->  Hash  (cost=458287.68..458287.68 rows=24995368 width=37) (actual rows=24995353 loops=1)
         Buckets: 33554432  Batches: 1  Memory Usage: 2019630kB


Should the HashAggregate node also report on Buckets and Memory Usage?  I would have found that useful several times.  Is there some reason this is not wanted, or not possible?

Cheers,

Jeff


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