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From: Rob Sargent <robjsargent@gmail.com>
To: David G. Johnston <david.g.johnston@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: CTEs and re-use
Date: Tue, 11 Apr 2017 21:05:36 -0600
Message-ID: <EBE13082-9D2F-4E9F-BA86-386B93D15FAA@gmail.com> (raw)
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> On Apr 11, 2017, at 8:47 PM, David G. Johnston <david.g.johnston@gmail.com> wrote:
> 
> On Tuesday, April 11, 2017, Rob Sargent <robjsargent@gmail.com> wrote:
> 
> I’m really just bumping into the annoyance of manually dropping the temp table as I work this up (though real collision in production would is possible, it would be unlikely) and thought to try to rework the function without the temp table - that’s the SQL question - and presumed the specifics of the function would come in useful.
> 
> 
> I'm not positive what you are thinking here but the names of temporary tables are session-unique.  They are not prone to concurrent use namespace collisions and not do not interfere with permanent tables either.  They are placed into a temporary schema that is only visible to the current session.
> 
> David J. 
Of course ‘on commit drop’ works like a charm. 
Thanks a ton.
rjs



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