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  1. Restore Windows dump to Linux (locale issue)

    Ertan Küçükoglu <ertan.kucukoglu@gmail.com> — 2025-11-23T21:41:35Z

    Hello,

I am using PostgreSQL 18.1 on a Windows system.
I need to move that database to a Linux system of the same version number.

Windows system use locales name as tr-TR (this is UTF-8 locale)
Linux system use locale name as tr_TR.UTF-8

My cluster backup gives error at restore (I think because of that locale
naming difference) as below

psql:/db.dump:133: ERROR:  invalid LC_COLLATE locale name: "tr-TR"

And a bunch of other errors below.

What can I do to complete this migration?

Thanks & Regards,
Ertan

  2. Re: Restore Windows dump to Linux (locale issue)

    Adrian Klaver <adrian.klaver@aklaver.com> — 2025-11-23T21:47:27Z

    On 11/23/25 13:41, Ertan Küçükoglu wrote:
> Hello,
> 
> I am using PostgreSQL 18.1 on a Windows system.
> I need to move that database to a Linux system of the same version number.
> 
> Windows system use locales name as tr-TR (this is UTF-8 locale)
> Linux system use locale name as tr_TR.UTF-8
> 
> My cluster backup gives error at restore (I think because of that locale 
> naming difference) as below

What was the complete command you gave to do the dump?

> 
> psql:/db.dump:133: ERROR:  invalid LC_COLLATE locale name: "tr-TR"

What objects where the errors on?

> 
> And a bunch of other errors below.
> 
> What can I do to complete this migration?
> 
> Thanks & Regards,
> Ertan


-- 
Adrian Klaver
adrian.klaver@aklaver.com

  3. Re: Restore Windows dump to Linux (locale issue)

    Adrian Klaver <adrian.klaver@aklaver.com> — 2025-11-23T21:49:55Z

    On 11/23/25 13:41, Ertan Küçükoglu wrote:
> Hello,
> 
> I am using PostgreSQL 18.1 on a Windows system.
> I need to move that database to a Linux system of the same version number.
> 
> Windows system use locales name as tr-TR (this is UTF-8 locale)
> Linux system use locale name as tr_TR.UTF-8
> 
> My cluster backup gives error at restore (I think because of that locale 
> naming difference) as below
> 
> psql:/db.dump:133: ERROR:  invalid LC_COLLATE locale name: "tr-TR"

I should have added to previous post what does, in psql, the below return:

\l <database_name>

> 
> And a bunch of other errors below.
> 
> What can I do to complete this migration?
> 
> Thanks & Regards,
> Ertan


-- 
Adrian Klaver
adrian.klaver@aklaver.com

  4. Re: Restore Windows dump to Linux (locale issue)

    Tom Lane <tgl@sss.pgh.pa.us> — 2025-11-23T22:02:04Z

    =?UTF-8?B?RXJ0YW4gS8O8w6fDvGtvZ2x1?= <ertan.kucukoglu@gmail.com> writes:
> I am using PostgreSQL 18.1 on a Windows system.
> I need to move that database to a Linux system of the same version number.
> Windows system use locales name as tr-TR (this is UTF-8 locale)
> Linux system use locale name as tr_TR.UTF-8
> My cluster backup gives error at restore (I think because of that locale
> naming difference) as below
> psql:/db.dump:133: ERROR:  invalid LC_COLLATE locale name: "tr-TR"

Edit the dump so that the databases are created with Linux-compatible
locale names.  You should find lines like

CREATE DATABASE foo WITH TEMPLATE = template0 ENCODING = 'UTF-8' LOCALE_PROVIDER = libc LOCALE = 'tr-TR';

(details will vary depending on PG version) and changing the locale
strings ought to do the trick.

If the dump file is too big for your editor, consider splitting it
into schema-only and data-only dumps.

			regards, tom lane

  5. Re: Restore Windows dump to Linux (locale issue)

    Brent Wood <brent.wood@niwa.co.nz> — 2025-11-23T22:42:11Z

    If the dump file is too big to edit conventionally, piping it through a stream editor like sed to make the required changes works nicely.
It can be done on the fly in the restore process if required.

Brent Wood

Principal Technician, Fisheries
NIWA
DDI:  +64 (4) 3860529
________________________________
From: Tom Lane <tgl@sss.pgh.pa.us>
Sent: Monday, 24 November 2025 11:02
To: Ertan Küçükoglu <ertan.kucukoglu@gmail.com>
Cc: pgsql-general@lists.postgresql.org <pgsql-general@lists.postgresql.org>
Subject: Re: Restore Windows dump to Linux (locale issue)

=?UTF-8?B?RXJ0YW4gS8O8w6fDvGtvZ2x1?= <ertan.kucukoglu@gmail.com> writes:
> I am using PostgreSQL 18.1 on a Windows system.
> I need to move that database to a Linux system of the same version number.
> Windows system use locales name as tr-TR (this is UTF-8 locale)
> Linux system use locale name as tr_TR.UTF-8
> My cluster backup gives error at restore (I think because of that locale
> naming difference) as below
> psql:/db.dump:133: ERROR:  invalid LC_COLLATE locale name: "tr-TR"

Edit the dump so that the databases are created with Linux-compatible
locale names.  You should find lines like

CREATE DATABASE foo WITH TEMPLATE = template0 ENCODING = 'UTF-8' LOCALE_PROVIDER = libc LOCALE = 'tr-TR';

(details will vary depending on PG version) and changing the locale
strings ought to do the trick.

If the dump file is too big for your editor, consider splitting it
into schema-only and data-only dumps.

                        regards, tom lane



Brent Wood
Principal Technician - GIS and Spatial Data Management
+64-4-386-0529
301 Evans Bay Parade, Greta Point, Hataitai, Wellington, New Zealand
Earth Sciences New Zealand
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  6. Re: Restore Windows dump to Linux (locale issue)

    Ertan Küçükoglu <ertan.kucukoglu@gmail.com> — 2025-11-25T21:06:39Z

    Brent Wood <Brent.Wood@niwa.co.nz>, 24 Kas 2025 Pzt, 01:42 tarihinde şunu
yazdı:

> If the dump file is too big to edit conventionally, piping it through a
> stream editor like sed to make the required changes works nicely.
> It can be done on the fly in the restore process if required.
>
> Brent Wood
>
> Principal Technician, Fisheries
> NIWA
> DDI:  +64 (4) 3860529
> ------------------------------
> *From:* Tom Lane <tgl@sss.pgh.pa.us>
> *Sent:* Monday, 24 November 2025 11:02
> *To:* Ertan Küçükoglu <ertan.kucukoglu@gmail.com>
> *Cc:* pgsql-general@lists.postgresql.org <
> pgsql-general@lists.postgresql.org>
> *Subject:* Re: Restore Windows dump to Linux (locale issue)
>
> =?UTF-8?B?RXJ0YW4gS8O8w6fDvGtvZ2x1?= <ertan.kucukoglu@gmail.com> writes:
> > I am using PostgreSQL 18.1 on a Windows system.
> > I need to move that database to a Linux system of the same version
> number.
> > Windows system use locales name as tr-TR (this is UTF-8 locale)
> > Linux system use locale name as tr_TR.UTF-8
> > My cluster backup gives error at restore (I think because of that locale
> > naming difference) as below
> > psql:/db.dump:133: ERROR:  invalid LC_COLLATE locale name: "tr-TR"
>
> Edit the dump so that the databases are created with Linux-compatible
> locale names.  You should find lines like
>
> CREATE DATABASE foo WITH TEMPLATE = template0 ENCODING = 'UTF-8'
> LOCALE_PROVIDER = libc LOCALE = 'tr-TR';
>
> (details will vary depending on PG version) and changing the locale
> strings ought to do the trick.
>
> If the dump file is too big for your editor, consider splitting it
> into schema-only and data-only dumps.
>
>                         regards, tom lane
>

Hello,

I manually created a database on the Linux system.
Took a database backup and restored it on the Linux system.
This way dump does not include any charset.

Thanks & Regards,
Ertan

  7. Re: Restore Windows dump to Linux (locale issue)

    Adrian Klaver <adrian.klaver@aklaver.com> — 2025-11-25T21:20:04Z

    On 11/25/25 13:06, Ertan Küçükoglu wrote:

> 
> Hello,
> 

I am not understanding the below.

> I manually created a database on the Linux system.
> Took a database backup and restored it on the Linux system.

That is what started this thread, an issue with a backup from a Windows 
machine.

So where did you get a backup that you could restore?

> This way dump does not include any charset.

Pretty sure it does, it just one that your Linux machine understands.

> 
> Thanks & Regards,
> Ertan


-- 
Adrian Klaver
adrian.klaver@aklaver.com

  8. Re: Restore Windows dump to Linux (locale issue)

    Ertan Küçükoglu <ertan.kucukoglu@gmail.com> — 2025-11-25T22:03:15Z

    Adrian Klaver <adrian.klaver@aklaver.com>, 26 Kas 2025 Çar, 00:20 tarihinde
şunu yazdı:

> On 11/25/25 13:06, Ertan Küçükoglu wrote:
>
> >
> > Hello,
> >
>
> I am not understanding the below.
>
> > I manually created a database on the Linux system.
> > Took a database backup and restored it on the Linux system.
>
> That is what started this thread, an issue with a backup from a Windows
> machine.
>
> So where did you get a backup that you could restore?
>
>
Initially it was a pgdump_all backup. Which includes database creation
scripts.
I used only pg_dump backup. Where I restore in an already created database.

I called pg_dumpall backup as "cluster backup" . It may be my wrong choice
of naming.

  9. Re: Restore Windows dump to Linux (locale issue)

    Adrian Klaver <adrian.klaver@aklaver.com> — 2025-11-25T22:13:46Z

    On 11/25/25 14:03, Ertan Küçükoglu wrote:
> Adrian Klaver <adrian.klaver@aklaver.com 
> <mailto:adrian.klaver@aklaver.com>>, 26 Kas 2025 Çar, 00:20 tarihinde 
> şunu yazdı:
> 
>     On 11/25/25 13:06, Ertan Küçükoglu wrote:
> 
>      >
>      > Hello,
>      >
> 
>     I am not understanding the below.
> 
>      > I manually created a database on the Linux system.
>      > Took a database backup and restored it on the Linux system.
> 
>     That is what started this thread, an issue with a backup from a Windows
>     machine.
> 
>     So where did you get a backup that you could restore?
> 
> 
> Initially it was a pgdump_all backup. Which includes database creation 
> scripts.
> I used only pg_dump backup. Where I restore in an already created database.

Alright I understand now.

> 
> I called pg_dumpall backup as "cluster backup" . It may be my wrong 
> choice of naming.

It is a dump of the all the databases in the cluster as well as the 
cluster global objects, so the naming is correct. I just did not make 
the connection.


-- 
Adrian Klaver
adrian.klaver@aklaver.com