Re: Outer Joins
| От | Josh Berkus |
|---|---|
| Тема | Re: Outer Joins |
| Дата | |
| Msg-id | 3A019C88.942D17B8@agliodbs.com обсуждение исходный текст |
| Ответ на | Re: Outer Joins (Josh Berkus <josh@agliodbs.com>) |
| Список | pgsql-sql |
Marc, Tom, > Good point. Frankly, if you have a relevant large population of data > (>10,000 rows) to test, I'd love to see comparative execution tests > between the two query structures. > > Fortunately, this will all soon become moot; Tom says that outer joins > have been stable in the 7.1 build for a while. Speaking of which, > when's the 7.1 "release"? Huh, huh? On second thought, couldn't we use some kind of EXCLUDES clause to expedite this? Tom? Further, it occurs to me that as in my query, you don't want to use "NOT IN" on *either* version. Instead, use "NOT EXISTS", which is much, much faster. -Josh Berkus -- ______AGLIO DATABASE SOLUTIONS___________________________ Josh Berkus Complete informationtechnology josh@agliodbs.com and data management solutions (415) 436-9166 for law firms, small businesses fax 436-0137 and non-profit organizations. pager 338-4078 San Francisco
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