From: Tom Lane <tgl@sss.pgh.pa.us>
To: George A.J <jinujosein@yahoo.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Temporary tables
Date: Sat, 27 Sep 2003 13:09:25 -0400
Message-ID: <6294.1064682565@sss.pgh.pa.us> (raw)
In-Reply-To: <20030927133139.42953.qmail@web14911.mail.yahoo.com>
References: <20030927133139.42953.qmail@web14911.mail.yahoo.com>
"George A.J" <jinujosein@yahoo.com> writes:
> When i searched the pg_class i found the temp table name more than once.
> ie, a temporary table is created for each connection.I cannot distingush
> the temp tables. But the tables are in different schema.
> Is there a method to get the current temporary schema?
Not directly, but you could try something like
perform * from pg_class where
relname = 'mytable' and pg_table_is_visible(oid);
if not found then ... -- create the table
The visibility test would not succeed for temp tables belonging to other
backends. (If 'mytable' is also used as the name of a regular table
then this isn't quite good enough, but I think just avoiding such a name
collision is easier than extending the check to reject non-temp tables.)
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, jinujosein@yahoo.com
Subject: Re: Temporary tables
In-Reply-To: <6294.1064682565@sss.pgh.pa.us>
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