Re: [GENERAL] Locale, encoding, sort order confusion
Alvaro Herrera wrote: For example, with all LC_* parameters set to "en_US.UTF8", I get the following incorrect "order:by": Béarn Bécancour Beaupré Did you initdb with locale en_US.UTF8, and also createdb with encoding UTF8? While you can certainly choose mismatching values in createdb and initdb, you shouldn't because it doesn't work. That's an interesting question. Are the LC_* variables set by initdb or createdb? In other words, does their value indicate what initdb settings I used? If I do a default createdb, will the new database automatically be consistent with the cluster's initdb?
Re: [GENERAL] Locale, encoding, sort order confusion
John Gunther wrote: > >Pretty much any locale (say, en_US for you) with a matching character > >set should work. Unless you go out of your way, this should be the > >default setting. > > >>I've tried a half dozen time-consuming configs without > >>success. > > >Like what? > > For example, with all LC_* parameters set to "en_US.UTF8", I get the > following incorrect "order:by": > > Béarn > Bécancour > Beaupré Did you initdb with locale en_US.UTF8, and also createdb with encoding UTF8? While you can certainly choose mismatching values in createdb and initdb, you shouldn't because it doesn't work. See the docs here: http://www.postgresql.org/docs/8.1/static/multibyte.html Important: Although you can specify any encoding you want for a database, it is unwise to choose an encoding that is not what is expected by the locale you have selected. The LC_COLLATE and LC_CTYPE settings imply a particular encoding, and locale-dependent operations (such as sorting) are likely to misinterpret data that is in an incompatible encoding. Since these locale settings are frozen by initdb, the apparent flexibility to use different encodings in different databases of a cluster is more theoretical than real. It is likely that these mechanisms will be revisited in future versions of PostgreSQL. > Incidentally, in psql via a putty.exe session, the only character set > translation I can find that displays the accented characters is CP437. Does > this seem right? You should probably set client_encoding in the psql session (using \encoding) if you want to change the charset in putty. -- Alvaro Herrerahttp://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
Re: [GENERAL] Locale, encoding, sort order confusion
Pretty much any locale (say, en_US for you) with a matching character set should work. Unless you go out of your way, this should be the default setting. I've tried a half dozen time-consuming configs without success. Like what? For example, with all LC_* parameters set to "en_US.UTF8", I get the following incorrect "order:by": Béarn Bécancour Beaupré Bécancour should be last. Incidentally, in psql via a putty.exe session, the only character set translation I can find that displays the accented characters is CP437. Does this seem right? ---(end of broadcast)--- TIP 6: explain analyze is your friend
Re: [GENERAL] Locale, encoding, sort order confusion
John Gunther wrote: > Can someone tell me what combination of PostgreSQL and Linux settings > I need for this? Or point me somewhere that it's well explained. It > seems like a very basic question, but I'm just dense, > I guess. Pretty much any locale (say, en_US for you) with a matching character set should work. Unless you go out of your way, this should be the default setting. > I've tried a half dozen time-consuming configs without > success. Like what? -- Peter Eisentraut http://developer.postgresql.org/~petere/ ---(end of broadcast)--- TIP 6: explain analyze is your friend
