Re: tweaking NTUP_PER_BUCKET
| От | Atri Sharma |
|---|---|
| Тема | Re: tweaking NTUP_PER_BUCKET |
| Дата | |
| Msg-id | CAOeZVic7oqWJUAwnQyZwR8WhjAmMK4jKTad7rhk=jSN-qEQfTw@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: tweaking NTUP_PER_BUCKET (Stephen Frost <sfrost@snowman.net>) |
| Ответы |
Re: tweaking NTUP_PER_BUCKET
|
| Список | pgsql-hackers |
On Thu, Jul 3, 2014 at 11:40 PM, Stephen Frost <sfrost@snowman.net> wrote:
Tomas,filter?Thanks for working on this! I've been thinking on this for a while and
* Tomas Vondra (tv@fuzzy.cz) wrote:
> However it's likely there are queries where this may not be the case,
> i.e. where rebuilding the hash table is not worth it. Let me know if you
> can construct such query (I wasn't).
this seems like it may be a good approach. Have you considered a bloom
IIRC, last time when we tried doing bloom filters, I was short of some real world useful hash functions that we could use for building the bloom filter.
If we are restarting experiments on this, I would be glad to assist.
Regards,
Atri
Atri
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