Re: not in vs not exists - vastly diferent performance - Mailing list pgsql-sql

"tgl@sss.pgh.pa.us (Tom Lane)" wrote in comp.databases.postgresql.sql:

> "Iain" <iain@mst.co.jp> writes:
> 
>> I found this interesting and thought I'd offer it up for comment.
> 
> You didn't say what PG version you are using, but I'd venture to bet
> it is pre-7.4.
       This must've been one of the enhancements.  =)

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