Re: Fail to create PK or index for large table in Windows

On Tue, Nov 13, 2018 at 10:22 AM Pavel <ospavelmail@gmail.com> wrote:
> PostgreSQL 11.0, 11.1
> OS: Windows 7 x64
> RAM: 16GB

Thanks for the report.  This is the same issue as reported in bug #15460:

https://www.postgresql.org/message-id/flat/15460-b6db80de822fa0ad%40postgresql.org

We are still trying to figure out what causes this, and there have
been no similar reports on Unix.  For a workaround, you can disable
parallel index building with SET max_parallel_maintenance_workers = 0.

> 2018-11-12 21:31:05.182 MSK [6672] ERROR:  could not determine size of
> temporary file "0"
> 2018-11-12 21:31:05.182 MSK [6672] STATEMENT:  alter table sc.address
> add primary key (id_address);

This is the thing we haven't understood yet.

> 2018-11-12 21:31:05.889 MSK [7008] LOG:  could not rmdir directory
> "base/pgsql_tmp/pgsql_tmp6672.0.sharedfileset": Directory not empty
>
> After error the directory
> "base/pgsql_tmp/pgsql_tmp6672.0.sharedfileset" is empty.

For the later "could not rmdir directory" error, I am fairly sure I
understand what's happening there (see the other bug thread) but
that's only a LOG message and an empty directory left behind after an
error is raised, it's not the root cause.

-- 
Thomas Munro
http://www.enterprisedb.com