Re: libpq CREATE DATABASE operation from multiple treads

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From: Rob Sargent <robjsargent@gmail.com>
To: p.sun.fun@gmail.com
Cc: pgsql-sql@lists.postgresql.org
Subject: Re: libpq CREATE DATABASE operation from multiple treads
Date: Thu, 8 Oct 2020 14:43:45 -0600
Message-ID: <058A9601-35F6-42C1-AC4C-8DD4643E418F@gmail.com> (raw)
In-Reply-To: <e11780112264fddbae35f53a3b26095f1789e413.camel@gmail.com>
References: <390804abe88e4e9da9049f6e05c841783acaca47.camel@gmail.com>
	<CAAfz9KOVPRptcva6T97+VgLhYbqMJGC07yHVHMW3Ugxki6y6dA@mail.gmail.com>
	<124ce8dff8402159f20dec1bc1ac27e26ee39c23.camel@gmail.com>
	<96718FB0-E258-4342-BD6E-BCE6603BCBD5@gmail.com>
	<e11780112264fddbae35f53a3b26095f1789e413.camel@gmail.com>



> On Oct 8, 2020, at 2:41 PM, p.sun.fun@gmail.com wrote:
> 
> On Thu, 2020-10-08 at 14:35 -0600, Rob Sargent wrote:
>>> On Oct 8, 2020, at 2:30 PM, p.sun.fun@gmail.com wrote:
>>> 
>>> Indeed, this is a FATAL_ERROR. From two threads I got:
>>> 
>>> // Thread #1
>>> FATAL_ERROR: ERROR:  source database "template1" is being accessed
>>> by
>>> other users
>>> DETAIL:  There is 1 other session using the database.
>>> 
>>> // Thread #2
>>> FATAL_ERROR: ERROR:  source database "template1" is being accessed
>>> by
>>> other users
>>> DETAIL:  There is 1 other session using the database.
>>> 
>> I would try using dbname=postgres.  
> aaaaand.... it works. Two databases have been created with return
> status "COMMAND_OK".
> 
>> If you get the same error, I would say your server is in single user
>> mode?

And if you try it again using template1?

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