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Re: [PERFORM] Distinct-Sampling (Gibbons paper) for Postgres
- From: Josh Berkus <josh(at)agliodbs(dot)com>
- To: a3a18850(at)telus(dot)net
- Cc: pgsql-performance(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org
- Subject: Re: [PERFORM] Distinct-Sampling (Gibbons paper) for Postgres
- Date: Thu, 28 Apr 2005 22:22:51 -0700
- Message-id: <200504282222(dot)52192(dot)josh(at)agliodbs(dot)com>
> Now, if we can come up with something better than the ARC algorithm ... Tom already did. His clock-sweep patch is already in the 8.1 source. -- Josh Berkus Aglio Database Solutions San Francisco
- References:
- Re: [PERFORM] Bad n_distinct estimation; hacks suggested?
- From: Andrew Dunstan
- Re: Distinct-Sampling (Gibbons paper) for Postgres
- From: a3a18850
- Re: [PERFORM] Bad n_distinct estimation; hacks suggested?
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