I have managed to split the 365GB file into 2GB chunks with the help of
'split' unix utility in mingw shell like so
split -C 2GB ways.txt
Then I imported the files into a clean database with the help of the
following cmd command
for /f %f in ('dir /b') do psql -U postgres -w -d osm -t -c "set
On Sat, 2019-11-30 at 22:47 +0300, Eugene Podshivalov wrote:
> It sounds strange but the "type" is indeed impacting the overall
> performance somehow.
> I've just tried to execute the following sequence of commands on a
> fresh new database with PostreSQL v10 and both the copy and primary
> key
It sounds strange but the "type" is indeed impacting the overall
performance somehow.
I've just tried to execute the following sequence of commands on a
fresh new database with PostreSQL v10 and both the copy and primary
key commands performed as slow as in v11 and 12.
SET synchronous_commit TO
Laurenz,
There is no way to run copy without the "type" on v11. See this thread
https://www.postgresql.org/message-id/CAKHmqNCfTMM6%3DPqc6RUMEQ_2BPfo5KGGG-0fzRXZCVooo%3DwdNA%40mail.gmail.com
My machine is running on NVMe disks, so the I/O subsystem very strong.
The 100% overload is not constant
On Fri, 2019-11-29 at 13:04 +0300, Eugene Podshivalov wrote:
> I'm using PostgreSQL on Windows for Planet OSM database and have
> noticed considirable decrease in performance when upgrading from v10
> to 11 or 12. Here are the details of the experiment I conducted trying
> to figure out what is
I don't think so. Why adding primary key shows the same downgraded
performance as well then?
пт, 29 нояб. 2019 г. в 13:37, Thomas Kellerer :
>
> Eugene Podshivalov schrieb am 29.11.2019 um 11:04:
> > Imported ways data from a file and added a primary key.
> >
> > SET synchronous_commit TO OFF;
>
Eugene Podshivalov schrieb am 29.11.2019 um 11:04:
> Imported ways data from a file and added a primary key.
>
> SET synchronous_commit TO OFF;
> COPY ways FROM 'E:\ways.txt';
> ...
> COPY ways FROM PROGRAM 'cmd /c "type E:\ways.txt"';
Those two commands are not doing the same thing - the
