| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Alvaro Herrera <alvherre(at)commandprompt(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: TODO Item: IN(long list ...) |
| Date: | 2006-10-31 22:34:21 |
| Message-ID: | 200610311434.22296.josh@agliodbs.com |
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| Lists: | pgsql-hackers |
Tom,
> I think it's pretty much done. Try WHERE foo IN (VALUES (1),(2),...)
> if you have so many values that a non-nestloop join seems indicated.
Hmmm. Was there a reason not to automate this? Thread link is fine if
you can remember the subject line ... I can't find it on archives.
> The plain non-VALUES list form is also significantly faster than it
> was, but I think it will only result in a bitmap indexscan plan type.
Yeah, even bitmapscans break down at 1000 values ...
--
--Josh
Josh Berkus
PostgreSQL @ Sun
San Francisco
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