Dear Tom, Your suggestion worked just fine. Thanks. -----Original Message----- From: pgsql-admin-owner@xxxxxxxxxxxxxx [mailto:pgsql-admin-owner@xxxxxxxxxxxxxx] On Behalf Of Tom Lane Sent: Friday, December 30, 2016 5:53 PM To: Ertan Küçükoğlu <ertan.kucukoglu@xxxxxxxxxxx> Cc: pgsql-admin@xxxxxxxxxxxxxx Subject: Re: Creating a database with LC_COLLATE tr_TR.UTF-8 =?iso-8859-9?B?RXJ0YW4gS/zn/Gtv8Gx1?= <ertan.kucukoglu@xxxxxxxxxxx> writes: > I just installed PostgreSQL 9.6.1 64bit on Windows 10 64bit OS. On Windows you'd have to use Windows' locale names. My first guess would've been that those are completely unlike anybody else's, but some googling suggests that "tr-TR" (dash not underscore) will work: https://msdn.microsoft.com/en-us/library/windows/desktop/dd373814(v=vs.85).a spx But the easy answer is to look into the pg_collation system catalog and see what names are installed. regards, tom lane -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin