Re: outer join in PostgreSql

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От Thomas Lockhart
Тема Re: outer join in PostgreSql
Дата
Msg-id 3A63D83D.93FE66A4@alumni.caltech.edu
обсуждение исходный текст
Ответ на improve performance  (Alexaki Sofia <alexaki@ics.forth.gr>)
Список pgsql-interfaces
Mauricio Hipp Werner wrote:
> 
> I need help, which is the symbol used in postgreSql to carry out the outer
> join.
> 
>  in oracle the is used (+)
> in sybase the is used * and
> in postgreSql?

The PostgreSQL outer join is accomplished using SQL92 syntax. You will
not find real outer joins *except* in the current beta release, and
beware that there may be some tweaks to the grammar to help with
conformance to the standard.

In any case, check the standard or try something like "select * from t1
left outer join t2 on (i)".


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