Обсуждение: unicode support vs native install
The Running & Installing PostgreSQL On Native Windows FAQ has an item on not being able to use unicode http://pginstaller.projects.postgresql.org/FAQ_windows.html#2.6 "/Because Postgres relies on the operating system for some string related functions, the OS needs to support the same encoding as the one that is used as the database encoding. Unfortunately, Windows does not support some encodings that are available as server-side encodings for PG." /My understanding is the 8.0 windows installer prevents istalling utf-8 but you can get around it with initdb if you know what your doing. Apparently only some things related to utf-8 data will be broken like sort ordering. / /Does this apply to Cygwin installs of PostgreSQL as well? Thanks, Eric
Eric J. Schwarzenbach wrote: > The Running & Installing PostgreSQL On Native Windows FAQ has an item on > not being able to use unicode > > http://pginstaller.projects.postgresql.org/FAQ_windows.html#2.6 > > "/Because Postgres relies on the operating system for some string > related functions, the OS needs to support the same encoding as the one > that is used as the database encoding. Unfortunately, Windows does not > support some encodings that are available as server-side encodings for PG." > > /My understanding is the 8.0 windows installer prevents istalling utf-8 > but you can get around it with initdb if you know what your doing. > Apparently only some things related to utf-8 data will be broken like > sort ordering. > / > /Does this apply to Cygwin installs of PostgreSQL as well? Yes, it does. The problem is that we only support UTF8 and Windows is UTF16. If you don't care about character ordering you can initdb with locale of C and use Unicode as your encoding. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073
pgman wrote: > Eric J. Schwarzenbach wrote: > > The Running & Installing PostgreSQL On Native Windows FAQ has an item on > > not being able to use unicode > > > > http://pginstaller.projects.postgresql.org/FAQ_windows.html#2.6 > > > > "/Because Postgres relies on the operating system for some string > > related functions, the OS needs to support the same encoding as the one > > that is used as the database encoding. Unfortunately, Windows does not > > support some encodings that are available as server-side encodings for PG." > > > > /My understanding is the 8.0 windows installer prevents istalling utf-8 > > but you can get around it with initdb if you know what your doing. > > Apparently only some things related to utf-8 data will be broken like > > sort ordering. > > / > > /Does this apply to Cygwin installs of PostgreSQL as well? > > Yes, it does. The problem is that we only support UTF8 and Windows is > UTF16. If you don't care about character ordering you can initdb with > locale of C and use Unicode as your encoding. > Uh, this is assuming that Cygwin doesn't add UTF8 to Windows. I don't think it does, but I am not sure. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073
I believe cygwin supports only the C locale. If I remember correctly it is mentioned either in the README or FAQ that is included with the postgresql-cygwin package. Mike On Sat, 2005-03-12 at 19:25, Bruce Momjian wrote: > pgman wrote: > > Eric J. Schwarzenbach wrote: > > > The Running & Installing PostgreSQL On Native Windows FAQ has an item on > > > not being able to use unicode > > > > > > http://pginstaller.projects.postgresql.org/FAQ_windows.html#2.6 > > > > > > "/Because Postgres relies on the operating system for some string > > > related functions, the OS needs to support the same encoding as the one > > > that is used as the database encoding. Unfortunately, Windows does not > > > support some encodings that are available as server-side encodings for PG." > > > > > > /My understanding is the 8.0 windows installer prevents istalling utf-8 > > > but you can get around it with initdb if you know what your doing. > > > Apparently only some things related to utf-8 data will be broken like > > > sort ordering. > > > / > > > /Does this apply to Cygwin installs of PostgreSQL as well? > > > > Yes, it does. The problem is that we only support UTF8 and Windows is > > UTF16. If you don't care about character ordering you can initdb with > > locale of C and use Unicode as your encoding. > > > > Uh, this is assuming that Cygwin doesn't add UTF8 to Windows. I don't > think it does, but I am not sure.
Bruce Momjian schrieb: > pgman wrote: >>Eric J. Schwarzenbach wrote: >> >>>The Running & Installing PostgreSQL On Native Windows FAQ has an item on >>>not being able to use unicode >>> >>>http://pginstaller.projects.postgresql.org/FAQ_windows.html#2.6 >>> >>>"/Because Postgres relies on the operating system for some string >>>related functions, the OS needs to support the same encoding as the one >>>that is used as the database encoding. Unfortunately, Windows does not >>>support some encodings that are available as server-side encodings for PG." >>> >>>/My understanding is the 8.0 windows installer prevents istalling utf-8 >>>but you can get around it with initdb if you know what your doing. >>>Apparently only some things related to utf-8 data will be broken like >>>sort ordering. >>>/ >>>/Does this apply to Cygwin installs of PostgreSQL as well? >> >>Yes, it does. The problem is that we only support UTF8 and Windows is >>UTF16. If you don't care about character ordering you can initdb with >>locale of C and use Unicode as your encoding. > > Uh, this is assuming that Cygwin doesn't add UTF8 to Windows. I don't > think it does, but I am not sure. cygwin supports no multi-byte charsets because it uses only newlib, not the windows string c runtime (MSVCRT.DLL), which is multi-byte compatible. I didn't check so far how postgresql works around multi-byte issues. Maybe it applies to cygwin as well. -- Reini Urban http://xarch.tu-graz.ac.at/home/rurban http://phpwiki.org